REFLECTOR: fuel cap

[John Dibble]

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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