REFLECTOR: fuel cap

[John Dibble]

That's what I thought.

Scott Derrick wrote:

> They don't get loose John. They get left sitting unlatched in their
> respective hole or left sitting on the wing next to their hole.
>
> Scott
>
> -------- Original Message --------
> Subject: Re: REFLECTOR: fuel cap
> From: John Dibble <aminetech at bluefrog.com>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Date: 01/29/2012 04:14 PM
>
> > What I want to know is how, besides forgetting to replace it, does a Velocity fuel cap
> > get loose?
> >
> > John
> >
> > David Ullman wrote:
> >
> >> There has been some discussion in the Squadron III news letter about lost
> >> fuel caps.  Seems that there are two issue: 1) cap going through the prop,
> >> and 2) siphoning fuel from both tanks.  The first is easily solved with a
> >> tether system which I will add.  The second is what our rather complex
> >> venting system is intended to overcome, I believe.  In thinking this
> >> through, if a cap comes off, there now low pressure in one tank which could
> >> allow fuel to be siphoned out and draw fuel from the other tank.  However,
> >> the venting system allows air, rather than heavier fuel, to be drawn into
> >> the capless tank minimizing the loss of fuel.  In theory this seems right.
> >> Can someone who has experienced a cap loss confirm this is what happens?
> >>
> >> Now have 6 flights on N444DX all with my test pilot Robin Reid at the
> >> controls (co-pilot on the Pipistrel G4). Aileron problems seem to be
> >> resolved.  It has rained here solidly for the last 2 weeks (10+ inches, the
> >> drought is over!! - a NW joke) so no more progress on that front.
> >>
> >> David Ullman
> >> N-444DX Velocity
> >> EAA 292 President
> >> david at davidullman.com
> >> 541-754-3609
> >>
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