With two JAR crew (189 lbs each) and full fuel (105 lbs), I can (in theory,
if not "legally") get 150lbs of baggage into the back of my Europa (which
has an empty weight of 727 lbs). At which point the CG reaches the aft
limit and the all up weight is still only 1360 lbs.
That leaves 105 +150 = 255lbs worth of rear passengers , assuming they can
sit far enough forward (or don't mind facing backwards; far safer!). I could
hang a VP prop on the front to bring the CG further forward.
It's a given that fuel in hte wings would not contribute to a/c allup weight
and would have to be located forward of the spars (currently its at the rear
of the spars); that argument would have to be won first!
Of course, this analysis does not allow for the additional weight of seats,
belts, complex fuel plumbing etc.
Either way, a third seat only should be easy.
Duncan Mcf.
----- Original Message -----
From: "David Joyce" <davidjoyce@doctors.org.uk>
Subject: Re: Europa-List: Wing tanks
<davidjoyce@doctors.org.uk>
>
> Mattias, The normal fuel tank is in front of the spars, but behind the C
of
> G mid range, so that filling up the tanks puts the C of G back. more of a
> snag with the idea of making it a 4 seater is that luggage puts the Cof G
> back considerably more because of the greater moment arm. In fact the
> possible combinations of pilot range 120-450lbs /fuel 0-110lbs &
> baggage0-80lbs uses up the entire permissible C of G range (58.0 to
62.5").
> The following figures for my mid weight 914/XS illustrate the problem:
> Wt of pax Wt of fuel Wt of bags C of G posn
> Shift of C of G
> 200 0 0
> 58.42 -
> 200 110 0
> 60.03 1.61
> 200 110 80
> 62.22 2.19
> 400 0 0
> 58.01 -
> 400 110 0
> 59.48 1.47
> 400 110 80
> 61.21 1.73
> If you take a small (120lb) pilot or two large ones (450lbs) you readily
> reach the extremes of the CofG range. I am very attracted to the idea of
> wing tanks to increase the range but am deeply suspicious of the idea of
> making it into a 4 seater or even a 2+2. Regards, David Joyce, G-XSDJ
>
>
> ----- Original Message -----
> From: "Rosen, Mattias" <MRosen@harmanbecker.com>
> To: "FILETIME=[D7905D40:01C4BAA1]" <europa-list@matronics.com>
> Subject: AW: Europa-List: Wing tanks
>
>
> <MRosen@harmanbecker.com>
> >
> > Duncan,
> >
> > Thanks for these inpiring words. Ever since the day I first heard about
> the DynAro 4S (four-seater Ban-Bi) I have been tempted to trading my
Europa
> kit for an MCR 4S. The big problem was that I really wanted Europa's
> detachable wings, and I didn't really need a "real" four seater, but
rather
> a 2+2 (back seats being something like what you will find in a
seven-seater
> VW Touran or Opel Zafira). If the Europa can be converted to a 2+2 seater,
> it is really the perfect plane for me :-)
> >
>
>
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