Forums > Windsurfing   Gps and Speed talk

bombora dromedary

Reply
Created by keef > 9 months ago, 9 Apr 2009
Gestalt
QLD, 14627 posts
14 Apr 2009 10:45PM
Thumbs Up

i've seen foam colapse in vac bags. not sure other than that.

jeez kato, i thought my boards had excessive cutouts.....

keef
NSW, 2016 posts
14 Apr 2009 10:47PM
Thumbs Up

kato said...


These were about 20mm deep and turned this board into a dream to sail, esp in small chop. The TM fin was pretty good too

kato wow thats dramatic, so that blows my theary about cutout makeing the tail to loose, orrrrrrrr do you have to use a bigger fin to compensate

keef
NSW, 2016 posts
14 Apr 2009 10:51PM
Thumbs Up

Gestalt said...

i've seen foam colapse in vac bags. not sure other than that.

jeez kato, i thought my boards had excessive cutouts.....

jep i stuffed a board up last year useing an electric blanket thought i had turned it off , got up in the morrning and f.rrrrrrrk it pulled the rocker up and collapsed the top

decrepit
WA, 12767 posts
14 Apr 2009 9:31PM
Thumbs Up

keef said...

anyone or decrepit do you think the rocker could have changed while it was in the bag because it was defernatly flatter yesterday, and now its settleing back down either as the weather is cooler or the resin is cureing because the rocker from 300 to 700 is lifting, where yesterday it was defernately quite flat @ 900
i had the bag pulling 35 pressure which is high normal is 25 but i thought i needed more pressure cos of the deep inserts ill have another look tomorrow if anyone has had this problem let me know
this thread is allmost done but ill do another post after all the changes and a test run, thanks for everyones input and the pm's you have all been a great help


I thought the same thing happened to my board in the early stages, but I think that was when I put the top on, didn't support the board enough and had too much surplus bag on one side of the board.
Once you have the board finished and are only doing mods, I'd be surprised if it moved very much.
Although it depends what you mean by "35" if that's inches of mercury or feet of water, it's more than an atmosphere, (I think) almost anything could happen at that pressure, (I'm not sure how you get more than an atmosphere though)

keef
NSW, 2016 posts
15 Apr 2009 4:53PM
Thumbs Up

Select to expand quote
decrepit said...




I thought the same thing happened to my board in the early stages, but I think that was when I put the top on, didn't support the board enough and had too much surplus bag on one side of the board.
Once you have the board finished and are only doing mods, I'd be surprised if it moved very much.
Although it depends what you mean by "35" if that's inches of mercury or feet of water, it's more than an atmosphere, (I think) almost anything could happen at that pressure, (I'm not sure how you get more than an atmosphere though)

decrepit all is well the rocker defernately did move but it settled,when i cut the blank off the foam ,the rocker was in the template, so when ever i glassed and bag i would put the board on the block of foam with some sandbaggs so the rocker didnt move under pressure, hope that makes sence)
if 100 was an atmosphere then i was pulling 35( im not sure about that stuff)

decrepit
WA, 12767 posts
15 Apr 2009 6:27PM
Thumbs Up

OK, about 1/3 that's what I normally use. Should be OK at that.

keef
NSW, 2016 posts
28 Apr 2009 9:47PM
Thumbs Up

sailed the board with the modified foot cutouts, and tail cutouts, and rail chimes,did a PB 29.95 in southerly slopp, the board defernately felt more stable, and the rails didn't look like catching, since then ive added the wings witch gives the front rails a bit more tuck,after adding the wings the board weighs 5.2 kgs so only gained about 30 grams ill do another post when the board is completed
ps the recess's in the footstrapps worked perfect and went as expected, even though i only got 30mm on the outside rail, you could notice the extra pressure with your toe's on the lip



Subscribe
Reply

Forums > Windsurfing   Gps and Speed talk


"bombora dromedary" started by keef