Hi Frans=2C
I am with you on this one. If there is one thing that always puzzles me=2C
is when someone says that you can't do this=2C but doesn't give any reasoni
ng as to why.
Karl
> Date: Mon=2C 30 Jul 2012 17:29:07 +0200
> From: frans@privatepilots.nl
> To: europa-list@matronics.com
> Subject: Re: Europa-List: Mylar seals and stall speed?
>
>
> Hi Pete=2C
>
> > I have had the Mylar gap seals since new in 2003. Mine were fitted to
the
> > flap gap=2C as well as the ailerons and rudder=2C but my inspector was
not happy
> > and checked with the PFA/LAA. They were not happy either about possibl
e
> > effects on the stall speed and the seals were removed from the flap gap
> > before the first flight.
>
> I can imagine someone fearing that the stall speed increases... but here
> the stall speed decreases. Is that a bad thing=2C to lower the stall spee
d?
>
> Isn't that the holy grail of wing design=2C to lower the stall speed
> without hurting the cruise and top end performance?
>
> I can imagine that with heavy cross wind the airplane keeps flaring
> beyond the point where the rudder can keep the plane straight. This
> might be more of a problem for the mono than for the tri-gear. For the
> tri gear one can opt to land with the flaps up or partially deployed if
> a higher stall speed is desired.
>
> At the next occasion I will do some checks to see if indeed the stall
> speed has been affected by these seals. I didn't know that a STOL-kit
> was so easy to make for an Europa. :-)
>
> Oh=2C and I just assumed that with seals on the flap gap you mean seals o
n
> the upperside of the wing. Not on the huge gap on the lowerside of the
> wing=2C right? In the latter case=2C I can see how that could increase th
e
> stall speed as you effectively change the fowler flaps into non-fowler
> flaps. I didn't apply seals on the lowerside of the wing for exactly
> this reason.
>
> Do you still have the seals on the rudder? I only did the starboard
> side=2C because at the port side the gap opens up quite a bit with full
> right rudder=2C and the seals might be sucked inside the gap and block th
e
> rudder. I would like to hear if someone indeed tried seals on the port
> side of the rudder. I have quite a nasty transition there as the rudder
> is less wide than the rear of the fuselage. I would love to smooth out
> this transition but I'm not going to be the one who finds out whether
> this is a good idea or not. =3B-)
>
> Frans
>
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