There was a chap at the Europa Seminar in Camberley this year who I think has
the performance figures you seek for the Europa aerodynamics. He might
also be
the man to theorise on this subject.
To cut a long story short we met airside he expressing interest in the
Europa as
he had completed a dissertation on comparing wind tunnel tests on the Europa
wing against the Don Dykins design figures. I gave him a caby and put him in
touch with the Europa Club and hence the seminar appearance. He had a copy of
the dissertation complete with polar curves etc. in it. Then all you need is
the equivalent thrust / fuel figures!!!
He has completed his degree from Hatfield and was last heard of
training towards
a CPL at Blackbushe in April last. The name has escaped me but Don Dykins or
Dave Bossomworth might help.
Yours Alasdair Milne
Quoting BEBERRY@aol.com:
> Paul,
>
> I cannot quote exact fuigures for the Europa but as an example (which is
> not perfect as jet powered aircraft work to different parameters), I used to
> fly in Sea Vixens and the best speed for maximum endurance i.e. for
> the maximum
> time in the air regardless of the distance travelled, would be about 180
> knots.
>
> On the contrary, if you were going for the best range i.e. maximum distance
> flown for a given fuel load, then you would beetle along at about 330 knots.
> There is, as you will note, a big difference. The best range speed would
> not vary with differing winds. The difference is not so large with a piston
> engine, and you will not be concerned with max endurance - a case
> which would
> only arise, usually, in the military field where you may have to stay on CAP
> station for max time , for instance, waiting to intercept an incoming raid.
>
> One of the peculiarities of GA is that, unlike military flying, there are
> few, if any, tables to give best range and endurance speeds for differing
> heights, air temperatures etc. I know of no source for these but maybe the
> internet holds the answers somewhere!
>
> It would be interesting to work out some figures for oneself but this would
> entail a great deal of air time and expense - a job which used to be done for
> us by test pilots who would then issue a complete set of pilot's notes with
> all the info.
>
> Good job for you if you have the time and inclination!!
>
> Best wishes.
>
> Patrick
>
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