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ACRO E-mail Archive Thread: [Acro] Re: Flop tube

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ACRO E-mail Archive Thread: [Acro] Re: Flop tube


Thread: [Acro] Re: Flop tube

Message: [Acro] Re: Flop tube

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From: klick at

Date: Fri, 11 Oct 2002 16:55:34 UTC


My S1S was built in August of 1973 in Afton. Last year we
changed the flop tube because we thought it was time.

The factory put a hole in the firewall with a cover that
should have made the change easier, but the screws had 
not been turned since they were installed, so that part
was the worst.

After the long tedious job of removing the cover, the flop
tube came out quite easily. It was the steel braid type,
just like the replacement, and just as soft as the new one.

Since we had a new one, we installed it, but I kept the
old one as a back up.

Jim Klick

>           This talk of hardening plastic flop tubes is interesting but not
>necessary.  Our Acroduster Too has a 20 year old braided steel flop tube
>hose that was still very supple when we checked it last year.  Perhaps this
>is the Aeroquip type that Aviat is shipping to Ashley?
>              Cheers,  Frank
>----- Original Message -----
>From: Randy Reed <reedrandy at>
>To: <AMSnaproll at>; <acro at>
>Sent: Friday, October 11, 2002 7:45 AM
>Subject: [Acro] Re: Flop tube
>> Ashley,  right after I got my Eagle, it started
>> quitting with 12 gallons of fuel while inverted.
>> Once, I thought I would have to land on a road before
>> it started up again.  I removed the tank and flop
>> tube.  The tube was yellow plastic and was so hard
>> there was know way it would flop enough to pick up
>> inverted.  I ordered a new one from Aviat.  It ran me
>> about $90 and works well.  I have been told a lot of
>> people replace them every 2 years or so just to make
>> sure it doesn't quit when they need it.  Danny
>> recomends cutting a hole in the firewall while the
>> tank is out so the next time you change the tube, you
>> don't have to remove the tank.  I did that on mine and
>> made a plate out of aluninum and screwed it to the
>> firewall with 4 screws to cover up the hole.
>> randy reed
>> --- AMSnaproll at wrote:
>> > My trusty Eagle gave me a raised eyebrow the other
>> > day. Rolled inverted and
>> > it quit running. Rolled upright and it ran. Got to
>> > be entertaining after
>> > awhile, but I figured I oughta fix it. I took out
>> > the flop tube and pressure
>> > tested it, and there were no splits or leaks. So,
>> > gurus, is it possible that
>> > it was sucking shut when it was bent a certain way?
>> > And if that is true, what
>> > happens if it sucks shut when upright? Does anybody
>> > have an emergency fuel
>> > feed that bypasses the flop tube, and if so, how did
>> > you rig it?
>> >
>> > Thanks a heap!
>> > Ashley Messenger
>> > Ch. 34
>> >
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