Kingsley, the syphon system means that the level in the long range tank
remains the same as that in the main tank, and both LR tank and main
tank will run dry at the same time, leaving you with some 10 litres in
the reserve side.
Otherwise very much agree with your view of how useful it is in day
trips out & return, allowing you to avoid having to refuel somewhere
where they only have Avgas
David Joyce, GXSDJ
On 2021-09-29 13:03, Kingsley Hurst wrote:
> <kingsnjan@westnet.com.au>
>
> William,
>
> I have a long range tank but I have never used the syphon method
> because I am unable to understand how all the fuel in the long range
> tank can be used without emptying one side of the main tank too.
>
> In Australia, I mainly find the extra fuel capacity very handy for out
> and return flights where each leg is over 2 hrs and fuel is not readily
> available like in other countries.
>
> In one Europa I have, the LR tank plumbs into the existing fuel system
> and the fuel can be transferred in flight after about 1.5 hrs by means
> of a fuel pump under the baggage bay area making every litre available
> from that tank while there is still plenty of fuel in the main tank.
>
> In my other Europa, I don't have the same plumbing so I carry a spare
> fuel pump with a hose and a piece of aluminium pipe. The aluminium
> pipe is inserted into the LR tank and the pump plugs into a power
> outlet socket and decants the fuel into the main tank via the normal
> filler neck. On an out and return flight as just mentioned or a long
> one way flight, I transfer the fuel either at the destination or a
> convenient landing spot while we enjoy a cuppa and a sandwich and/or
> carry out other functions required after being in the air for a
> considerable period of time.
>
> It works well and I am very pleased I have it.
>
> Best regards
> Kingsley in Oz
>
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