I flew B-47s, 988 hrs. While the nose wheel of a B-47 is much farther
forward of the cg, we always kept it gently but firmly on the ground and let
the aft main fly. We were taking off at only 6 knots ahead of the bottom of
the power curve, 156 knots, and extremely close to the aft cg limit. You
could get a severe pitch up and wind up with no airspeed, not enough power
and not enough altitude. You don't have to grind off the prop tips, just
gently but firmly. Try it you'll like it, especially with an aft cg.
Have a good flight.
Leo Corbalis
----- Original Message -----
From: <DJA727@aol.com>
Subject: Europa-List: Minimum trim speed
>
> Hello there all you flying Europa owners!
>
> I am now a test pilot and I would like some input, if you could. I have
now
> flown the Mini U2 (motorgllider) 2 flights and 1.8 hours. It has gone very
> well, except for today's near disaster landing. I have not explored the
> slower speeds enough and was too conservative on the approach speed. (too
> fast). The rest of the story, I will not tell, as it must be obvious. It
> ended up OK with a go around.
>
> The troubling thing I have encountered is that I can only trim to about 65
> knots minimum and that is at full aft trim. I have not refined this
exactly,
> but it is close. The airplane acts as if it is at a too far forward CG. My
CG
> sits at 59.4, which is wwell within the envelope for the short wings. I
> susect the long wings may have some adjustments here. I have checked again
> all the controls and trim system movements and they all check out fine. My
> question to the group is:
>
> With the short wings, what is the minimum airspeed you can trim the
airplane
> - especially at a forward CG?
>
> Also, in the videos of takeoffs, I see the tailwheel come up well before
the
> airplane main leaves the ground. I am paranoid about keeping the stick aft
> and was wondering what those experienced with this configuration find
during
> takeoff for the tail coming off the ground. My airplane has been leaping
off
> the ground abruptly as I am keeping that stick probably too far back too
> long.
>
> Flight #3 coming up in a few days, with a more aft CG!
>
>
> Dave
> A227
> Mini U2 (undamaged!)
>
>
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