dougsnash
Joined: 14 Apr 2008
Posts: 281
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 Posted: Fri Nov 14, 2008 11:40 am Post subject: 701 Wet Wing (Was HDPE fuel tanks) |
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John, I know of a builder near me that is planning on going with a wet wing in his 701. He has previously built a RV-6 so has expirience with this concept. I believe that he has Zenair/Chris Heintz approval for his modificatons. I recall they include heavier skins and stiffening grooves in the rib webs but I don't remember what else was involved.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
Do Not Archive
--- On Fri, 11/14/08, John Bolding <jnbolding1(at)teleshare.net> wrote:
| Quote: | From: John Bolding <jnbolding1(at)teleshare.net>
Subject: Re: Re: HDPE fuel tanks
To: zenith701801-list(at)matronics.com
Date: Friday, November 14, 2008, 1:04 PM
Bolding" <jnbolding1(at)teleshare.net>
Two other options that might be useful pop up in my feeble
mind.
For the scratch builders it would be a simple matter to
trace out the main rib form block on a piece of paper and
remove 1/8" (or whatever you feel comfortable with),
make a couple of ribs for the ends and sheet over with 025,
sealing everything up with proseal. My RV3 tanks have
lasted 30 plus yrs and 2000 hrs with only one leak.
Another thought , I'm giving SERIOUS thought to this ,
is just making that wing bay wet by sealing up the ribs,
spar, skins, I will put the opening on the bottom to keep
the top lifting surface as clean as possible. Top and bottom
skins will be 025 in this area. Advantages are , lighter,
cheaper, easier to build and will carry more fuel for the
space used. Haven't passed it by my aero engineer
buddies yet but considering the fuel was there anyway I
don't THINK there will be much to change, BUT I'm
wrong a lot so we'll see.
LO&SLO John
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