Hi Bruce !
Congratulations !!! Sounds like you've got everything working
just right - I envy your CHT's !!!
I usually cruise the 320 at 2,450 rpm, and economy cruise at
2,300 - 2,350 - saves almost 2 gph (!!) with my engine, and a bit smoother.
Haven't noticed a particular rpm that's worse for vibrations ...
(I have the same prop as you do.) They seem to prefer running faster,
especially after break-in. There's no factory restriction on rpm's
with the 320's, as far as I know - there <is> a BIG restricted range on
the 360's (with some props it runs from 2,100 to 2,450 rpm !!!).
You might need to re-torque your engine mounting bolts after
a few hours, as the rubber flexes - that might help a bit. I am still
amazed at how much that 320 hops around on the Dynafocal mounts, but
it seems to like it. If your engine's new, it might help to run it on
100 LL for the first few hours, and double check the mag timing.
It definitely will feel like there's a lot of shaking, compared
to the 912's smoothness .....
.....bobp
----------------------------------orig.---------------------------------
At 09:46 PM 8/6/02 EDT, you wrote:
Hi all,
Thanks for the encouraging support from all of you. I have 3 1/2 hours flight
time now on my 0320 150 HP and CHT's, and OT seem to be acceptable and within
limits. After a sustained five minute climb at full power CHT's reached 420
F, and at 2400 RPM cruise CHT's are 340 F. I'm still cataloging information
and will have more to say on this later.
Right know I have a few questions for you 0320 drivers. It has been many
years since I have flown behind a Lycoming and I have nothing to compare it
to. The engine starts shaking more in best angle take off at 2400 RPM. It
seems to hop around more in cruise at this RPM too. I here everyone talk
about how the Lycoming shake but I haven't anything to compare it to. Is this
normal? Is there a RPM restriction with this engine and the 74/56 metal
Sensenich, at this RPM?
I found the Rebel to be a pleasant, forgiving, easy and fun plane to fly and
land. AT first the Aileron stick forces where heavier than what I was use to
in my Kitfox, but not uncomfortably so. I loved the way the Rebel sinks on
landing approach. The Kitfox likes to float and is hard to spot land. Not the
Rebel. The Rebel's descent rate is very stable, steep and predictable like a
real STOL plane. There is plenty of elevator to flare on landing, even at
very low speeds. I did rig in 28 degrees up elevator and it seems to be just
right for my empty CofG of 9.95. More later.
Bruce G 357R
<HTML><FONT FACE=arial,helvetica><FONT SIZE=2>Hi all,
<BR>
<BR>Thanks for the encouraging support from all of you. I have 3 1/2 hours
flight time now on my 0320 150 HP and CHT's, and OT seem to be acceptable
and within limits. After a sustained five minute climb at full power
CHT's reached 420 F, and at 2400 RPM cruise CHT's are 340 F. I'm still
cataloging information and will have more to say on this later.
<BR>
<BR>Right know I have a few questions for you 0320 drivers. It has been
many years since I have flown behind a Lycoming and I have nothing to
compare it to. The engine starts shaking more in best angle take off at 2400
RPM. It seems to hop around more in cruise at this RPM too. I here
everyone talk about how the Lycoming shake but I haven't anything to compare
it to. Is this normal? Is there a RPM restriction with this engine and the
74/56 metal Sensenich, at this RPM?
<BR>
<BR>I found the Rebel to be a pleasant, forgiving, easy and fun plane to
fly and land. AT first the Aileron stick forces where heavier than what I
was use to in my Kitfox, but not uncomfortably so. I loved the way the Rebel
sinks on landing approach. The Kitfox likes to float and is hard to spot
land. Not the Rebel. The Rebel's descent rate is very stable, steep and
predictable like a real STOL plane. There is plenty of elevator to flare on
landing, even at very low speeds. I did rig in 28 degrees up elevator and it
seems to be just right for my empty CofG of 9.95. More later.
<BR>
<BR>Bruce G 357R
<BR>
<BR></FONT></HTML>
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