Hi Dave,
I learned to fly in a 415-C. With the instructor, the stall was gentle
and straight ahead.
Later on, after solo, I started to practice some stalls and I
experienced, with only one
aboard, a much more abrupt break to the stall followed by what seemed
(at the time) to
be a radical LEFT wing drop.
Thinking about it afterward, it made some sense that an airframe
aerodynamically
"balanced" with two aboard would tend to fall off to the left with only
the pilot on board.
If your 3041H is "...a D model in E configuration", it likely has the
"low speed warning
cushion" per page 33A of the online Skyport Ercoupe Parts Catalog. If
the C-75 the
plane came with has been upgraded to a C-85, you should have and refer
to the
Flight Manual for the "E" and "G" models.
On page 6 there are two paragraphs explaining how this works and is
used. An
excerpt:
"The control wheel should not be pulled back through this cushion of
additional
force until the airplane is within a few feet from the ground and
ready for the final
levelling (sic) out of the glide path for gentle contact."
The "cushion" should be encountered "at about 60 M.P.H.".
Also, in cruise, a properly rigged bird should demonstrate a tendency
to stay level
(left-right) hands off, and return to such level flight by itself from
a gentle bank one way
or the other. That's the "gift" of the comparatively high wing
dihedral of the design.
Regards,
William R. Bayne
.____|-(o)-|____.
(Copyright 2009)
--
On Aug 14, 2009, at 16:30, [email protected] wrote:
It's pretty much as Mike says. I did power on stalls and power off
stalls on Thursday afternoon. Just me and full tanks, so probably
around 1250# at 3500'. The power off stall basically consisted of the
airplane settling into a "mush" of about -200 FPM VVI, with full aft
yoke, and then if you held it there, it would eventually have a very
gentle straight-ahead break that flew itself out. The ASI showed 64
MPH. Power on was about the same, except for the right wing dropping
when it broke, but still pretty gentle. Once again, it indicated 64
MPH when stall occurred. I spoke to Mike, and this was consistent
with what he saw. He said that if you get below 70 MPH indicated at a
high AOA/pitch attitude, you are definitely approaching stall. But he
also said that 70 MPH indicated in a descent or low AOA would not be
close to stall. His belief that the airspeed reads high at high
angles of attack due to the way the airflow hits the pitot tube makes
sense but I will still check out the airpseed readings on a calm
morning using the GPS and "boxing the compass" at around 70 MPH when I
get home from my UPS trip in a couple weeks.
Thanks,
Dave
--- In [email protected], si...@... wrote:
N3041H is a D model in E configuration. It has a split elevator with
the 20
deg up and 10 deg down rigging. The pitot was set at 3 7/8". on
straight
and level the airspeed appeared to be within 5 kts accurate but in a
high
incident stall climb the indicated speed appeared to be high.
Mike Sigman
Prior owner.
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