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Uh, Grayhawk forgot another factor - When the KIAS drops below 130, one
should consider taking the flaps out of reflex and that will definitely lower
the deck angle,but drop the IAS further. Ah, if I still had my small tail, fwd
CG, Hi CR, injected EI 320 with AOA, I would run out and perform some
additional experiments. Drat!
Grayhawk
PS, The wee plane loved to operate betwixt 7000 and 15000 MSL (ideal
9-12) and occasionally operate at 16000 or 17000 - Mountain High
pulsed O2 delivery system for improved human performance.
In a message dated 2/14/2014 6:54:18 A.M. Central Standard Time,
n20087@yahoo.com writes:
I have had mine to 17999 with no issue with stability. Also
recorded personal best ground speed of 278kts with an horrendous tailwind at
that altitude. My climb rate was in the 250 range at that altitude. The
biggest issue I encountered was poor engine cooling. Once past 13k in
sustained climb the temps began to elevate because of higher deck angle and
thinner air. Unless you are built real light I would say the practical
ceiling is 15k with o2 of course. My engine at the time ran approx 195hp.
Sent from my iPad
Angier,
A friend with a blue-printed 360 (200 hp?) decided to stop at about
FL21 because aircraft stability became an issue.
Grayhawk
PS limiting factors at FL18 is proper O2 mask and
supply, instrument flight plan filed, proper transponder,
etc............
In a message dated 2/13/2014 3:49:48 P.M. Central Standard Time, N4zq@verizon.net writes: What
is the practical service ceiling with a 180hp IO360?
Years ago I was
told you are there when the rate of climb drops to 100ft/min of
less.
How high will it go?
Frost bite might be the limiting
factor?
:-)
Angier Ames
N4ZQ
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