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seat back height and larger main tank

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craigb(at)onthenet.com.au
Guest

Posted: Fri Oct 12, 2007 8:23 pm Post subject: seat back height and larger main tank

I have seen a few people discussing raising the seat back height by

an inch or two to accommodate a larger main tank and then switching

to an alloy tank or simmilar as part of the process of replacing a leaking

tank, just wondering if anyone has looked at this further



regards



craig

6:02 PM

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hagargs(at)earthlink.net
Guest

Posted: Sat Oct 13, 2007 7:22 am Post subject: seat back height and larger main tank

Yes;



That at least  is what I am planning to do.  I have  a new poly tank.  When

I remove the top of the seat back and  get the old tank cut out I will take

the poly tank and do some fit ups.  Then I will more or less copy the

plastic tank's configuration doing some optimization and then raise the 

top approximately 2".  Prior to doing that I will mock up the raised

configuration of the  whole mess to  make sure there are no hidden

gotcha's.  I still need to talk to some people around here to see what the

optimum thickness of  aluminum (or aluminium?) to use.  I did an analysis

and a 3/32" thickness of Al would give me a tank about 5 lbs heavier in the

stock configuration.  I did receive a photo of a tank on the internet  but

no specifics came with it.  Any further input would be appreciated.  A 2"

height increase would give about 3.5 extra gallons and raise the angle of

the  seat belts over the shoulder slightly which had been an item of

concern in the past.



Steve Hagar

A143

Mesa AZ

 	  Quote: 	
		   [Original Message]

 From: craig bastin <craigb(at)onthenet.com.au>

 To: <europa-list(at)matronics.com>

 Date: 10/12/2007 9:26:01 PM

 Subject: seat back height and larger main tank



 

 I have seen a few people discussing raising the seat back height by

 an inch or two to accommodate a larger main tank and then switching

 to an alloy tank or simmilar as part of the process of replacing a leaking

 tank, just wondering if anyone has looked at this further



 regards



 craig

 6:02 PM

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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craigb(at)onthenet.com.au
Guest

Posted: Sat Oct 13, 2007 12:57 pm Post subject: seat back height and larger main tank

steve, have you considered a kevlar or CF tank, the way i was thinking of

going was doing a blank of the bigger tank

out of foam,try it in place, then assuming all is good do a few layups of

kevlar or carbon over the whole thing, putting the fittings in place

during the layup, then just melt the foam out later using mogas. The carbon

is easier to work with, but i have concerns it

may be TOO stiff. thats why i thought kevlar matt may be better, or a kevlar

carbon weave cloth, with a vinyl ester resin system

that is chemically resistant. this would probably give you a tank about 2/3

the weight of the original with the extra capacity.



just a thought.



craig



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