REFLECTOR: loose fuel caps

David Rene Dugas via Reflector reflector at tvbf.org
Wed Jul 23 08:21:13 CDT 2014


Should the chain allow the cap to strike at the spar where it is solid? 
The top of the strake is quite thin. 
😉
Maybe an airfoil so it flies above the strake?

René Dugas
Apple the REALLY smart phone. 

> On Jul 23, 2014, at 6:52 AM, Dave T Nelson via Reflector <reflector at tvbf.org> wrote:
> 
> Jeff, I handled this during construction by floxing a fitting at the bottom of the fuel tank directly below the fuel cap, and attaching a SS cable from the fitting to the cap. 
> 
> However, floating around in the Central States repository are at least one solution that can be installed after construction... as I recall the solution was an aluminum "T" that fit into the tank attached to a cable which attached to the cap. 
> 
> To Scott's question regarding the strength required - I think I remember in the recent discussion regarding fuel systems with no L/R selector valve that someone discussed an experience where the cap came off... and merely sat there on the end of the chain (while the tank emptied).  Anyone remember the precise details? 
> 
> In any case ... this should be viewed as an absolute safety of flight issue... do NOT fly with unsecured caps!  It has already cost lives! 
>   
> Dave
> 
> Dave T. Nelson
> T/L 553-4327, Voice 507-253-4327, Fax 507-253-3648
> Program Director, ISC ECAT NPI & Test Engineering 
> 
> 
> ----- Message from jeff findarle via Reflector <reflector at tvbf.org> on Tue, 22 Jul 2014 07:15:19 -0700 -----
> To:
> Scott Baker <scottb33333 at gmail.com>, Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Subject:
> Re: REFLECTOR: loose fuel caps
> 
> can anyone else send pics of what they have done to protect against the departing fuel cap syndrome? Also wondering if there are any safety retainers that have been installed over the cap? 
> Thank you, Jeff
> TEAM JEFF Real Estate
> 
> Jeff Findarle - Realtor, GRI
> PRES.-Wasatch Co Association of Realtors
> 
> 
> 
> On Saturday, July 19, 2014 12:26 PM, Scott Baker via Reflector <reflector at tvbf.org> wrote: 
> 
> Vance,
> Just curious about the strength of the retaining chain.
> If a cap were to come loose, I imagine there would be some violent "whipping action" on the top surface of the strake, i.e. strong forces going on with the cap at the end of the chain.
> Do you know if the cap model you are installing will withstand 15-minutes of "pounding"??
> Best,
> Scott B. 
> 
> 
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