View Full Version : A Question For 'Tunnels'
One Oldman
06-04-2017, 06:47 AM
In a production environment, ABOUT how many gallons of resin and gel would it take to build a 20 ft boat? Such as a bass boat, bay boat, or runabout. This is not a trick question. I'm just curious.
tunnels
06-04-2017, 09:42 AM
In a production environment, ABOUT how many gallons of resin and gel would it take to build a 20 ft boat? Such as a bass boat, bay boat, or runabout. This is not a trick question. I'm just curious.
off the top of my head cant remember !! BUT if you know the square meters of the surface of the hull x that by .6 kgs will give you the gel coat and the laminate also square meters x 1.3 kgs for resin per square meter for each layer and your in the ball park ! Do you have a laminate for a boat that size ?? Not a lot different to what I gave you for yours just different weighs of fabrics that's about all and more csm to use as a core layer ! can find a laminate if you need , its the same size boat as we made for a customer that used a 225 hp motor and went like stink in rough water jumping surf !
Most time there's a 44 gallon drum sitting under the pump of a spray gun or chopper gun and never measure the weight !!
Sorry cant be more helpful right now !!
One Oldman
06-04-2017, 10:24 AM
Thanks. I was just curious. It appears I will have about 20-23 gallons in this hull by the time I get the remainder of the composite board puttied and glassed.
XstreamVking
06-04-2017, 10:35 AM
Maybe I can interject with some info here. Having built a few, I can give specific numbers for a light but plenty strong 20' boat. The last 20'3'' flats boat I built (mine) used 65 gallons of vinyl resin and 8 gallons of gell. Gelled inside and out. Designed and constructed with a 100% divinnycell foam core, one piece cockpit/deck and has a partially cored hull. Biaxial 1708 glass used throughout and penske core board for transom and stringers. 2 livewells and gunnel top rod lockers. 9 dry hatches with integral gutters/drains on all.
One Oldman
06-04-2017, 07:45 PM
Thanks. Since I removed and replaced 90% or so of the original layup and most of the original cap will remain, my total use will be around 25 gallons for hull and cap. For the layup I used 1 layer each of 18 oz, 17 oz, and 10 oz. So from what you said, I would guess my resin consumption to be reasonable considering the work I have done. I didn't have to replace the transom, but I did remove and replace original layup with a little extra.
dwilfong
06-05-2017, 05:59 AM
My Vector rebuild use less than 20 gal. That was a total gut and grind down to the shell and one layer of DB 1700 to cover the whole shell also all the build up including floor and transom. also all the lay up to replace all the top side wood structure and some added deck core work.
tunnels
06-05-2017, 06:12 AM
Like I pointed out using polyester or vinylester the resin to glass weight is close to 1.3 times the weight of the glass !!,
this can be lower if you use Peel ply on all surfaces !
The spray coverage of gel coat should be close to .6 kilo per sqr meter
W2F a V-King
06-05-2017, 08:28 AM
Sorta related I guess would be the weight of all of the above. When I received my order of glass and resin, fillers and such I was surprised at how much weight I am adding. :(
tunnels
06-05-2017, 09:06 AM
Sorta related I guess would be the weight of all of the above. When I received my order of glass and resin, fillers and such I was surprised at how much weight I am adding. :(
At long last !! The two worst materials for resin usage it woven roving of any weight and the old e matt chopped strand matt
The later P matt of the same weight uses less resin
Woven for the amount of resin used you are stepping backwards with the heavier weights the resin ratio can be as high as 1.7 r even higher BUT the same glass weigh of stitched glass will be more like 1.4 or even less ! So when you counting layers of glass being applied it all starts to multiply rather quickly but the resin ratio could stay the same if you using wet on wet layers !
Use better materials and the cost is usually less over all plus easier to work with and quicker to lay so there's time saving as well !.
This is what my job has been for the last 10 years to make boats lighter but stronger and use less materials but better quality and to go hand in hand with that is changing to better methods of construction and making every strand count !!
Still a good 30 to 40 % of glass used in boat construction is not doing anything its just adding weigh and along for the ride !! Changing peoples mind set to think is a full time job and still they like to add a little extra here and little more there when its totally not necessary and is not improving anything at all if it done properly in the first place !
W2F a V-King
06-05-2017, 04:54 PM
Good thing I'm not using any of those heavy ones then....:thumbsup:
tunnels
06-05-2017, 05:48 PM
Good thing I'm not using any of those heavy ones then....:thumbsup:
The best ,easiest ,lightest, single glass to use is unidirectional with a sprinkling of csm between each layer !! You can make anything with it ! just that !! its that simple !! its the orientation that goes with it that's the important part !
Its what is used too make all and any of the stitched fabrics !! so you can make your own !! biaxle, triaxle ,quad,or just a single layer
Unidirectional has incredible flexural strength and by its self can use 1.1 of resin !! used in combination the right way uni can add lots of extra stiffness to most any laminate you using as well !
tunnels
06-11-2017, 07:44 PM
In a production environment, ABOUT how many gallons of resin and gel would it take to build a 20 ft boat? Such as a bass boat, bay boat, or runabout. This is not a trick question. I'm just curious.
The amount of resin required to wet out a specific laminate what ever it is can could be less simply by changing the process and procedure in which its laid !!, you could reduce the amount of resin slightly by using a couple of different technique's I learned over the years building boats and working with skilled people and picking up secrets from them that I have learned and shown and applied in other places I have worked with good success !
home made tunnel
06-14-2017, 07:00 AM
The amount of resin required to wet out a specific laminate what ever it is can could be less simply by changing the process and procedure in which its laid !!, you could reduce the amount of resin slightly by using a couple of different technique's I learned over the years building boats and working with skilled people and picking up secrets from them that I have learned and shown and applied in other places I have worked with good success !
A good tactic is one I learned from a guy a time ago that was a great method to do something in a way no one had ever thought before. It was innovative and fresh. it was a trade secret passed on like tribal knowledge. What is it you ask? you'll never guess! It's this thing that you do with this stuff at a certain time on or above another thing over there with him or her...
^Useless paragraph with no information provided. Like Tunnels regularly posts hahaha
BarryStrawn
06-14-2017, 06:00 PM
Not enough exclamation marks!!!!, CAPS, bold text, or underlining. Your post is useless enough but not in the proper format.
tunnels
06-14-2017, 06:50 PM
A good tactic is one I learned from a guy a time ago that was a great method to do something in a way no one had ever thought before. It was innovative and fresh. it was a trade secret passed on like tribal knowledge. What is it you ask? you'll never guess! It's this thing that you do with this stuff at a certain time on or above another thing over there with him or her...
^Useless paragraph with no information provided. Like Tunnels regularly posts hahaha
ok clever person can you answer this for me please!!
Laying one single layer of glass uses x amount of resin ,yes !!
so if you laying 3 layers of the same glass it should use 3 times that amount of resin , yes ?? well it doesn't ! why ??
In cold weather its possible to lay 4 or 5 layers of the same glass and the savings of resin used is significant and quite noticeable , But why??? How can that be?? and what's happening ??
Can you explain why it uses less resin ??
There is more to doing this laying thick laminates and it has to be well thought out before you start ,so if you don't understand how it can be done DONT ATTEMPT THIS AT HOME !!
tunnels
06-14-2017, 06:56 PM
Not enough exclamation marks!!!!, CAPS, bold text, or underlining. Your post is useless enough but not in the proper format.
You must have a very boring life !! Does your wife go out a lot by herself ?? why not get a dog and a ball and go play together !!maybe the dog would prefer to go with her any way !!
XstreamVking
06-14-2017, 06:57 PM
I learned this multi layer tribal trick in the first week of lamination.....Back about 1977 or so.....
tunnels
06-14-2017, 07:05 PM
I learned this multi layer tribal trick in the first week of lamination.....Back about 1977 or so.....
Yip me to about the same era !, that's right and if its played with thought and care and knowledge the savings can be significant in some cases !!
Like 20 kgs of resin on just one side of a 22 foot yacht! still used the same glass laminate and amount of glass but laid all at once !!so we saved the guy 40kgs of resin !! and all that weight as well ,plus now days using the same technique but using stitched fabrics instead of 18 oz woven the saving would be even greater !!
SO COME ON YOU GUYS WHY CAN SO MUCH RESIN BE SAVED ?? HOW IS IT DONE ???
BarryStrawn
06-14-2017, 11:31 PM
You must have a very boring life !! Does your wife go out a lot by herself ?? why not get a dog and a ball and go play together !!maybe the dog would prefer to go with her any way !!
No, No, It fetches ducks, not balls. Probably
tunnels
06-15-2017, 12:00 AM
so how can so much resin be saver still using the same amount of glass ???
XstreamVking
06-15-2017, 06:07 AM
Just illustrate or tell us what you are wanting to demonstrate....
tunnels
06-15-2017, 06:16 AM
just illustrate or tell us what you are wanting to demonstrate....
how is it that laying many layers of glass (any glass ) one layer after the other wet on wet uses so much less resin than laying just one single layer at a time and letting it harden before the next layer ???
AS I used to say to all and any guys I worked with if I have to think for you I want you to pay me !!
XstreamVking
06-15-2017, 07:14 AM
Basic, applied, molecular physics at work is my answer. So, if you know why are you asking us?
home made tunnel
06-15-2017, 10:11 AM
How fast can sh!t roll down hill? Riddle me that.
How fast can sh!t roll down hill? Riddle me that.
Depends on various conditions
home made tunnel
06-15-2017, 11:33 AM
Depends on various conditions
Grassy hill? Is it raining at the time? Is it a rocky slope? :D
whipper
06-15-2017, 12:23 PM
hahaha Holly crap you guys crack me up! :cheers: i dont know the first thing about resin and glass but i accually enjoy this thread and many others seeing you guys go back and forth. Good fun! haha
Grassy hill in the rain, ducks not balls and then your wife! Ok thats a slippery slope. WTF is the answer!! lol Never mind I gota go put my power head back on and go boating!! haha
OK Actually ill try and answer this and I have never rolled or sprayed anything but my rims black with spray bomb on an old truck!
The reason you use less resin with 3 layers over 1 is because the layers will bond naturally requiring less resin in between to achieve the same if not better strength due to the bonding? Guess only have no clue gota go do motor work now! lol
XstreamVking
06-15-2017, 02:02 PM
Ding,ding,ding. folks ,we have a winner all the way from BC Canada. Even with NO glass experience he got it on the 1st try! Thanks for clearing this up whipper.
tunnels
06-15-2017, 04:54 PM
ding,ding,ding. Folks ,we have a winner all the way from bc canada. Even with no glass experience he got it on the 1st try! Thanks for clearing this up whipper.
so after all that prewritten rubbish you think bonding naturally is telling you how it is saving you resin?? Its not telling you a single thing of how !! So how is it saving you resin what is happening ??? . please Discribe bonding natually in detail !!! Give with the details dude !!
IT HASENT CLEARED UP ANYTHING ! ITS LIKE you SENTING A LETTER to someone in a foreign country WITH NO ADDRESS JUST A PERSONS NAME !
Have you ever written a instruction manual for doing or making something ?? This is just like that, its instructions with detail that's completely missing as in non existent !
XstreamVking
06-15-2017, 05:05 PM
Your post makes no sense. Whipper solved the saving resin conundrum. He gave a good answer. Next question...
tunnels
06-15-2017, 06:13 PM
Your post makes no sense. Whipper solved the saving resin conundrum. He gave a good answer. Next question...
Its only a small part of an answer yes BUT its tell me nothing !
WHAT IS NATURAL BONDING ??? THAT AS A ANSWER IS JUST THE HEADING OF THE DISCRIPTION AND IS EMPTY !, THERE IS NO EXPLINATION AS TO HOW IT BONDS NATURALLY PLEASE EXPLAIN!!
Present instructions as step-by-step procedures.
XstreamVking
06-15-2017, 06:23 PM
Keep studying on the problem, you will figure it out. When you have an answer, don't tell anyone. It's a secret.
olboatman
06-15-2017, 07:11 PM
Wow....I agree with the Whip, this is fun to watch,read as I am tryin to learn something but can't stop laughing! I would compare the layers dropped into the layup without drying between layers to painting. The more dry time between coats the larger build up and more material used. JME( just my experience) Gary
home made tunnel
06-15-2017, 09:50 PM
Tunnels ... capillary effect.
That is all.
Google it.
Once again... Unites States nuclear submarines. I know more than you. Just sayin.
And going back back to an earlier post... since when is a 22 foot boat considered a YACHT?!
home made tunnel
06-15-2017, 09:51 PM
Yip me to about the same era !, that's right and if its played with thought and care and knowledge the savings can be significant in some cases !!
Like 20 kgs of resin on just one side of a 22 foot yacht! still used the same glass laminate and amount of glass but laid all at once !!so we saved the guy 40kgs of resin !! and all that weight as well ,plus now days using the same technique but using stitched fabrics instead of 18 oz woven the saving would be even greater !!
SO COME ON YOU GUYS WHY CAN SO MUCH RESIN BE SAVED ?? HOW IS IT DONE ???
22 foot yacht LAWLZ
tunnels
06-15-2017, 11:16 PM
[QUOTE=home made tunnel;2962813]Tunnels ... capillary effect.
That is all.
Google it.
Once again... Unites States nuclear submarines. I know more than you. Just sayin.
And going back back to an earlier post... since when is a 22 foot boat considered a YACHT?![/QUOT
RESIN capillary effect is just common old resin infusion!
And a boat when it has a cabin, a galley ,a toilet ,sleeping for 4 adults , has a mast and sails spinnaker and a fixed cast iron keel ! It is called a yacht !
home made tunnel
06-16-2017, 06:17 AM
Thanks Webster
tunnels
06-16-2017, 06:37 AM
Thanks Webster
The word yacht is very very misleading ,Here all boats over 25 feet are called yachts . so you really never know what the hell people are refereeing to .
roadkill636
06-16-2017, 06:39 AM
I think i know how this thread works now
tunnels
06-16-2017, 07:09 AM
Resin saving can be done when laying ,4,or 5 layers or even 6 layers of glass one after the other in quick succession and rolling each layer with laminating rollers BUT it has to be thought out before you start . you need all and everything sorted in advance , glass cut and rolled up and placed close by where you will be working being totally organised is the key so no time is wasted . Like I have pointed out many many times the resin manufacture has a lower limit of catalyst that you should never ever go below AND IT USUALLY .75% SO THATS WHAT YOU START WITH !! Using the low catalyst allows you time to get the glass laid and wet out and rolled properly so if you have 6 layers you can process and get 5 layers down and rolled properly !!The 6th and final layer of glass you can bump the catalyst lever back up to 1.5% on the final resin being used .
This will kick off and start to gel in the usual time frame and the warmth from that will assist the other layers to gel and the whole laminate will get nice and warm !! and it will hold its warmth for quite a long time usually as it warms the mould as well so its curing the lay up at a much higher temperature that would usually happen and for a much longer period of time . Resin saving can be quite significant on big jobs, the wet on wet layers and the rolling out with laminating rollers compresses the glass fibres much tighter together than you would normally get and so the glass to resin ratio is much higher than you would normally get !
As I said all this has to be well thought out and properly organised before the job starts , timing is very important and knowing the gel times of your resin at different ratios of catalyst . using the natural exotherm warmth from the resin helps cure the whole job . I have used this method many many times on big boats when they have cores in the topside only ,so the core is laid into the wet glass and then the top layers of glass over the core are laid all at the same time I have shown a lot of people and it works wonders !! !
XstreamVking
06-16-2017, 07:22 AM
Why not post this from the start?
Dramatic effect helps lecture retention
The word yacht is very very misleading ,Here all boats over 25 feet are called yachts . so you really never know what the hell people are refereeing to .
That was explained on an old Columbo episode
W2F a V-King
06-16-2017, 08:11 AM
Resin saving can be done when laying ,4,or 5 layers or even 6 layers of glass one after the other in quick succession and rolling each layer with laminating rollers BUT it has to be thought out before you start . you need all and everything sorted in advance , glass cut and rolled up and placed close by where you will be working being totally organised is the key so no time is wasted . Like I have pointed out many many times the resin manufacture has a lower limit of catalyst that you should never ever go below AND IT USUALLY .75% SO THATS WHAT YOU START WITH !! Using the low catalyst allows you time to get the glass laid and wet out and rolled properly so if you have 6 layers you can process and get 5 layers down and rolled properly !!The 6th and final layer of glass you can bump the catalyst lever back up to 1.5% on the final resin being used .
This will kick off and start to gel in the usual time frame and the warmth from that will assist the other layers to gel and the whole laminate will get nice and warm !! and it will hold its warmth for quite a long time usually as it warms the mould as well so its curing the lay up at a much higher temperature that would usually happen and for a much longer period of time . Resin saving can be quite significant on big jobs, the wet on wet layers and the rolling out with laminating rollers compresses the glass fibres much tighter together than you would normally get and so the glass to resin ratio is much higher than you would normally get !
As I said all this has to be well thought out and properly organised before the job starts , timing is very important and knowing the gel times of your resin at different ratios of catalyst . using the natural exotherm warmth from the resin helps cure the whole job . I have used this method many many times on big boats when they have cores in the topside only ,so the core is laid into the wet glass and then the top layers of glass over the core are laid all at the same time I have shown a lot of people and it works wonders !! !
Thank You Tunnels.
This is very informative and useful for us hobbyist guys.
It is information I did not know, and will be useful.
Would slightly chilling an epoxy mix extend pot life similar to using less catalyst for multi layer, one mix poly lay up?
Gee's...I hope I haven't opened pandora's box... ;)
Why not share this in this manner form the get go?
home made tunnel
06-16-2017, 09:26 AM
I think i know how this thread works now
Bingo
One Oldman
06-16-2017, 10:36 AM
Would slightly chilling an epoxy mix extend pot life similar to using less catalyst for multi layer, one mix poly lay up?
To answer your question: yes chilling it will increase pot life, however it also increases viscosity. So it all goes back to knowing your materials and how they react. I have been using a 3:1 epoxy and found just setting it in front of a fan marginally increases pot life.
XstreamVking
06-16-2017, 11:12 AM
Simply mixing smaller batches gives the same result..For a slower cure, cool the surface and working area, not just the resin. I would be afraid of chilling the resin and then bringing it out into a warmer more humid air causing moisture problems.
One Oldman
06-16-2017, 12:26 PM
Point taken. However, I have chilled it a few times without any obvious bad effects. I have also read about others doing the same thing. But like anything when you experiment, you might ask for opinions but you are really on your own unless you find someone with direct experience with what you are attempting. Kind of like a buyer beware notice.
XstreamVking
06-16-2017, 12:30 PM
When colder liquids encounter higher temps they induce moisture. How much, depends on the dew point. You may not have seen it, but it was there.
One Oldman
06-16-2017, 03:02 PM
From what I have read the issue with moisture and epoxy is that the resin never cures or an extremely long cure if there is too much in the air or in this case else where. Possibly mistakenly, I have taken that to mean that if it cures OK, no harm no foul.
tunnels
06-16-2017, 04:46 PM
From what I have read the issue with moisture and epoxy is that the resin never cures or an extremely long cure if there is too much in the air or in this case else where. Possibly mistakenly, I have taken that to mean that if it cures OK, no harm no foul.
Humidity is something hardly NO ONE ever CONSIDERS as a possible cause of potential failure or possible inhibits the possible complete cure of resins !! For guy working outside in the open air even though its under a cover this is a enormous problem ! CONDENSED MOISTURE on the surfaces of places you going to be working is highly possible , dew and temperature changes from night to day and the moisture levels are usually quite hi ! Where do you store you rolls of glass ?? rolls of glass and things such as carbosil also retain moisture out of the air ! AND IF ANYTHING HAS BEEN SITTING ON A FLOOR THATS 100 TIMES WORSE !!, DAMPNESS surrounds us every where and is in everything ,even in all the cloths you wearing including you undies and shoes and socks your hair and specially your breath when you breath out!
THERES moisture coming form every where ! Don't think for one moment your concrete floor in you garage is immune either , concrete floors ,Concrete walls , hollow block walls all these places expel moisture AT AN ALARMING RATE . Dehumidifier's running for hours sucking moisture out of the air and the surroundings is amazing to see ,its almost uncomprehendable HOW MUCH THEY SUCK OUT and where does it all come from ?.
Survey standards specify 70% moisture in the air as maximum !, the lower it is the better !.
.
W2F a V-King
06-16-2017, 05:05 PM
Well in the next week or so I'll be finding out.
Boat is all ground out, with a couple areas needing some touch up ( corners and tight spots ).
Glass will be pre-cut and set up in order of install.
Fortunately, my basement stays 70ish all day long, cooler in the AM. And humidity is relatively low at 40-60%.
I am working by myself, and am slow :o, but the guy at US Composites told me I have a 4 hour work time to get the next layer on, before any blushing takes place.
I have a fair amount of peel ply to go on the last layer of whatever stage I can finish at before the 4 hours are up. That will negate the blushing, and leave a good surface for the next stage.
This is their thin set 3:1 ratio epoxy. My original testing was with the slow set 2:1 The man at US Composites talked me into the 3:1. He said it was stronger than the slow set 2:1. The 2:1 was more flexible than firm.
The 3:1 all mixed up is thinner than mixed poly. In between maple syrup and honey, if that makes any sense. My test samples didn't heat up much if any, and did cure out hard as my head...:eek:
XstreamVking
06-16-2017, 06:28 PM
How many layers are you putting in?
Like a stack of pancakes covered in maple syrup
tunnels
06-16-2017, 09:14 PM
Well in the next week or so I'll be finding out.
Boat is all ground out, with a couple areas needing some touch up ( corners and tight spots ).
Glass will be pre-cut and set up in order of install.
Fortunately, my basement stays 70ish all day long, cooler in the AM. And humidity is relatively low at 40-60%.
I am working by myself, and am slow :o, but the guy at US Composites told me I have a 4 hour work time to get the next layer on, before any blushing takes place.
I have a fair amount of peel ply to go on the last layer of whatever stage I can finish at before the 4 hours are up. That will negate the blushing, and leave a good surface for the next stage.
This is their thin set 3:1 ratio epoxy. My original testing was with the slow set 2:1 The man at US Composites talked me into the 3:1. He said it was stronger than the slow set 2:1. The 2:1 was more flexible than firm.
The 3:1 all mixed up is thinner than mixed poly. In between maple syrup and honey, if that makes any sense. My test samples didn't heat up much if any, and did cure out hard as my head...:eek:
so as has been asked all ready how many layers of glass are you laying in total ???and what is the glass you using ?? if you have a good long work time why not lay 3 or 4 layers all one after the other and finish off with you peel ply ??
W2F a V-King
06-17-2017, 06:28 AM
How many layers are you putting in?
Probably to many...I tend to over do stuff.
1 layer under the core on the prepped hull, one layer over the core. The pad area will get a double layer by the overlapping area caused by the 50" wide glass. So there will be about a 18" wide area down the center that will end up 2 layers glass, then the Divinicell laid in the pad, then 2 layers the same 18" or so over the pad area.
1 belting strip running the length where the stringers will set. 1-1/2 OZ CSM. This CSM has been made to work with epoxy, I asked before I bought it. Got it all from US Composites, glass, epoxy and all supplies..Cabosil, Milled fibers, etc...
1, maybe 2 layers to cover the stringers after belting them down, which in effect will add a second layer over most of the work area.
Probably over kill.
W2F a V-King
06-17-2017, 06:32 AM
Like a stack of pancakes covered in maple syrup
Sorta kinda..
Each pancake getting what it needs, as the stack goes on. Or that's the plan. My guess is that as each layer is rolled and worked into place, there will be resin to surface, this will be the wetting out for the next layer, and so on... Until the final layer, which will get peel ply.
W2F a V-King
06-17-2017, 06:52 AM
so as has been asked all ready how many layers of glass are you laying in total ???and what is the glass you using ?? if you have a good long work time why not lay 3 or 4 layers all one after the other and finish off with you peel ply ??
That would be ideal, but not practical in my scenario.
I am using glass I am familiar with and have used many times years ago. Maybe not your choice, but it will suffice. DBM 1708. The CSM layer is paper thin, and compatible with epoxy. The thickness of one layer of the 1708 is .044 or in MM 1.12MM.
I do plan to get as much done in one step as I can. I can not measure and cut my stringers to an exact fit until the core and it's covering layer is in place and hard.
Transom in first, then the core and supporting layers, over and under, then the stringer structures and seat box. A 3 step process for an old guy working slow.
While trying to keep this restore as light as possible, in the end I will be happy if the boat weighs near what it did when Hydrostream made it. With the big difference not so much in weight, but longevity. There is no wood being used in my restore. There is a little wood left in place in the combing of the deck that surrounds the upper interior, and it is in great shape. The dash and bow area is getting some rebuilding, but again with no wood.
Flame Suit On....
XstreamVking
06-17-2017, 06:56 AM
That will be a strong hull! It's easy to add glass now, but a pia to do it later. If you have enough HP it wont matter if the boat is 25-50#'s heavier than a production one. My boat runs better with some weight in it. By myself it is real flighty, and you can't use any trim. With 2 people it settles down some. With a full load of 4 people it rides like a caddy. To give you an example of how lite mine is...1 layer of 1.5 oz with the H-80 divinnycell core set in it over the main hull area. 1 layer of 1708 bi-ply over the core. Factory box glass stringer 4'' wide on the keel with 2 layers of 1708 over that. Penske floor panel with 1.5 oz matt over and under it and tabbed with a 8'' strip of 1708 around the perimeter to install. Transom on mine is waaay overbuilt since I planned to run a 3.0 liter motor on it. 3'' thick penske and 1708. Knees and horizontal brace from side to side between the motor bolts.
W2F a V-King
06-17-2017, 07:10 AM
Yes, I like what you did. I have looked at your restore thread numerous times. :thumbsup:
My transom should be almost as stout, just done differently. 4 pieces of the 28LB 1/2". Corelite board with double layers of the 1708 between each, built flat on ground and with weights stacked on top. Going to drill 1/8" holes about every three inches in it to get all the air pockets out. Got that idea from an Aussie member here, Greg Adams. After setting it in place with double layer behind and over it, it should bring it out to about 2-1/2" thick. Then when the deck goes back on, I retained the motor well, and will glass the top portion of the transom to the motor well.
Two center stringers will be kneed into the transom and then glass attached to the bottom of the motor well.
The motor is only a PM 225 with the block, intake, and heads worked some by James Perry. I honestly don't know all what he is going to do, but it should run OK. ;)
I'm taking pictures as I go.
roadkill636
06-17-2017, 07:31 AM
Heres my "stack of pancakes"
XstreamVking
06-17-2017, 08:51 AM
Lot of ways to get er done. Most work well. Greg Adams knows his stuff for sure. Good advice on the perforations. You guys will have some very tuff boats. As for performance, a 225 will get you to well into the 80's. Maybe more? (honest speeds).
Roadkill, that is a drastic way to do the trans. It must of been like a pc of swiss cheese to cut it completely out. Looks strong also.
W2F a V-King
06-17-2017, 09:00 AM
I see the air holes cut in your stack of pancakes !! and resin ozzing out. :thumbsup:
Yes, I'm hoping for 80's + and more. The ProMax motors start with about 240, and am hoping James P. gets me a bit more out of my 96 PM :cool:
And yes, the GPS is the only trusted way to get a decent speed reading. imo
XstreamVking
06-17-2017, 09:53 AM
Speed, time, distance calculation is the only true speed indication. GPS can be way off....
Sorta kinda..
Each pancake getting what it needs, as the stack goes on. Or that's the plan. My guess is that as each layer is rolled and worked into place, there will be resin to surface, this will be the wetting out for the next layer, and so on... Until the final layer, which will get peel ply.
I had a craving
tunnels
06-18-2017, 07:51 AM
377878
thanks webster
you thought yachts couldnt fly !!
Would like to see some power boat geeks build yachts !!
XstreamVking
06-18-2017, 10:50 AM
Uh, do 45' - 50' sailboats with 3 cabins, 2 lavatory's, complete kitchen, washer dryer, 7.5 kw genset, perkins 6cyl diesel, water maker, a/c and heat, count as yachts? And, I ran the shop and oversaw deliveries as well for over 5 years....So, built them, helped with design problems, and even sailed them all over the place.
tunnels
06-18-2017, 04:20 PM
Uh, do 45' - 50' sailboats with 3 cabins, 2 lavatory's, complete kitchen, washer dryer, 7.5 kw genset, perkins 6cyl diesel, water maker, a/c and heat, count as yachts? And, I ran the shop and oversaw deliveries as well for over 5 years....So, built them, helped with design problems, and even sailed them all over the place.
Yachts were the first 10 years of my life in composites and then lots power boats all shapes and sizes ,formula 1 type tunnels and off shore power boats ,including smaller power boats by the dozen ,then 2007/8 project managed the complete excise of plugs, moulds and 8 finished 36 foot match racing yachts in south Korea in less than 9 months and 2009 next excise was a completely new range of fast fishing boats built in conjunction with Hyundai marine and there new range of marine diesel motors ! later in China making cruiser style boats to 50 foot and everything in between down to 26 foot after that MORE small power boats , including development work and production planning and up dating there construction with lighter ,stronger and more durable laminates .
XstreamVking
06-18-2017, 05:01 PM
Also had my own shop with employees for over 20 yrs....Built anything you could draw a set of plans for. Made some serious money and am now retired doing well. No more glass work for me! Unless I want to to. Have fun in the glass shop...
tunnels
06-18-2017, 07:23 PM
Also had my own shop with employees for over 20 yrs....Built anything you could draw a set of plans for. Made some serious money and am now retired doing well. No more glass work for me! Unless I want to to. Have fun in the glass shop...
Funny how things rub off !! My eldest son has retired from the airforce RECENTLY and is deep into composites and carbon fibre bits and developments .
home made tunnel
06-25-2017, 09:10 AM
377878
you thought yachts couldnt fly !!
Would like to see some power boat geeks build yachts !!
I see your airtime... and raise you this... 7,000+ tons of steel getting 50+ feet into the air.
I'm still winning Mr. Tunnels
378626
XstreamVking
06-25-2017, 09:23 AM
I was in Hawaii on a tour boat. An orange smoke bomb came to the surface about 1/4 mile from us. The boat captain made top speed away from it and after a few mins a big fn sub surfaced. That was a lot cooler than the whales we were looking for. Something you have to witness to understand how awesome they are.
tunnels
06-25-2017, 05:33 PM
I see your airtime... and raise you this... 7,000+ tons of steel getting 50+ feet into the air.
I'm still winning Mr. Tunnels
378626
Like said a while back not interested !!!!!!!!!
dwilfong
06-29-2017, 05:16 PM
I was fishing off shore out of Port Canaveral a few years back and saw a sub about 3 miles off the bow. Well it was late and time to run the sea breeze back in. so Off I went. the sub was heading the same way so I slammed the throttle down and was slamming it hard at 40 to try and keep up.
Well I finally made some head way as we got close to port ant it slowed down.
When we got to the port some high impact chase boats came out with manned 50 cals on the front. well I thought I could beat this thing in the port before thy got in the way. WRONG ANSWER............... Lets just say I had my hands in the air.................LOL
That sub was fast as **** and left a white water trail miles long in the water.
tunnels
06-29-2017, 08:45 PM
I was fishing off shore out of Port Canaveral a few years back and saw a sub about 3 miles off the bow. Well it was late and time to run the sea breeze back in. so Off I went. the sub was heading the same way so I slammed the throttle down and was slamming it hard at 40 to try and keep up.
Well I finally made some head way as we got close to port ant it slowed down.
When we got to the port some high impact chase boats came out with manned 50 cals on the front. well I thought I could beat this thing in the port before thy got in the way. WRONG ANSWER............... Lets just say I had my hands in the air.................LOL
That sub was fast as **** and left a white water trail miles long in the water.
This sounds like another boring fishing story !! SO what's the point you trying to make ??WHAT HAS COMPOSITES AND SMALL BOATS GOT TO DO WITH ALL THAT NONSENSE ??
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