Getting used to the Arrow...and I like it...a lot!

"Dave Butler" wrote in message
news:1113855718.630798@sj-nntpcache-3...
Turbo Arrow wrote:

just a note, on decents, instead of reducign power to come down, you can
just
pull the prop back, it will cause more drag so you can decend but keep
engine
from shock cooling (BTW this is out of the manual)

"pulling the prop back" increases drag? Do you mean pulling on the
propeller control knob? How does that increase drag? Maybe you meant that
it reduces power?

Dave

No, it doesn't necessarily reduce power. Typically it will increase the
manifold pressure. If there is not a concomitant reduction in RPM the power
will increase. However, you will likely move the prop away from the optimum
pitch for the airspeed/RPM combination. This will reduce the effectiveness
of the horsepower to thrust conversion that you use the propellor for. That
means that more power will be required for the same thrust. This allows you
to maintain the thrust selected for the desired descent while producing
sufficient power to keep the cylinders warm and working.

However, I would not recommend that technique for all engines, even if it
would probably work alright for a geared engine. "pulling the prop back"
implies to me that you are increasing the pitch of the prop. With the
throttle setting unchanged this will result in a decrease in RPM and an
increase in Manifold Pressure. This moves you closer to the detonation
margin and could result in engine damage.

The normal procedure for increasing the pitch of a controllable or constant
speed prop is to reduce the throttle before increasing the pitch. With a
controllable prop you control the pitch directly. With a constant speed
prop you increase the pitch by reducing the RPM with the prop governor
control. High manifold pressure and low RPM is comparable to starting off
with your car in high gear. It lugs the engine.

Highflyer
Highflight Aviation Services
Pinckneyville Airport ( PJY )

Highflyer wrote:
"Dave Butler" wrote in message
news:1113855718.630798@sj-nntpcache-3...

Turbo Arrow wrote:


just a note, on decents, instead of reducign power to come down, you can
just
pull the prop back, it will cause more drag so you can decend but keep
engine
from shock cooling (BTW this is out of the manual)

"pulling the prop back" increases drag? Do you mean pulling on the
propeller control knob? How does that increase drag? Maybe you meant that
it reduces power?


No, it doesn't necessarily reduce power.

snipped good stuff about how to operate your engine

No disagreement there. I was trying to give Turbo Arrow a way to get out of his
assertion. Do you support Turbo Arrow's assertion that "pulling the prop back"
increases drag? I didn't think so.

Dave

get used to this happening, in my arrow it happened a couple of time, once was
a bad bulb in the gear light, another time a bad sensor switch that activated
the light on my right main.
I simply just tell the tower I have 2 greens and if he can verify my landing
gear is down and do a low approach over the runway so he can take a look. He
can see if its down but does not know its locked.

Jack Allison wrote:



- When working on a Complex endorsement, your CFI has a whole new set of
options for messing with you. "What, no 3-green...what ya gonna do
there Mr. Pilot?".

one thing you do have to worry about it the butterfly valve for the alt air
sticking.
I was in IMC, temp at freezing, and started losing power, I added power and the
engine picked back up but had my mechanics look at it anyways, they said I
probably had some induction icing and the alt air vavle thats suppose to open
automatically probably stuck.

Jack Allison wrote:-


experienced lots of carb ice situations in the Archer during evening
instrument lessons. One less thing to worry about.

Wait til you get in a Bonanza

AliR.

"Jack Allison" wrote in message
...
To date I have a whopping 8 hours in the Arrow. The last 2.9 were by
far the most fun since the two flights involved maneuvers and landings
(lots of landings). The more I get to fly N2104T, the more I like it.
Things are becoming more and more comfortable and familiar. Still have
lots to learn but I'm having fun. Hopefully, I'll be able to get some
solo time soon, maybe in a week or so. Solo will be rather interesting
since I haven't done so since last August, right before my FBO melted
down.

Overall impressions to date:
- Float down the runway? Nope, it ain't a C-172. Much harder to float
down the runway in an Arrow. Easier to contact said runway with carrier
landing force though.

- Pull the power back and you can drop like a streamlined manhole cover
if you need to. I'll bet forward slips are fun (have yet to try them).

- Things are busier in the pattern with the addition of gear, more
speeds to remember, CS prop, extra mantras you chant (My personal
favorite is "Pump(s), Red(s), Blue(s), Greens" on short final for the
last check of boost pump on, mixture full rich, prop full forward, and 3
in the green).

- The ground moves by faster now. Not that I'm doing a whole lot of
looking down but it takes less time flying to/from the practice area.

- 200 HP at sea level on a cool evening and lightly loaded is fun.

- I'd almost forgotten how much better I like fuel injection. Have
experienced lots of carb ice situations in the Archer during evening
instrument lessons. One less thing to worry about.

- When working on a Complex endorsement, your CFI has a whole new set of
options for messing with you. "What, no 3-green...what ya gonna do
there Mr. Pilot?".

- Engine out scenarios work way better when you pull the prop back.
Very good object lesson in drag reduction.

- Would rather have airspeed in knots...though, I learned that you can
setup the GNS-430 for MPH...but...why? :-)

- Stalls are rather unimpressive, similar to the Archer.
Buffet...yawn...that's it. A good thing.

- Wing on the bottom vs. wing on the top: Really doesn't matter. I'm
just happy to own something with a wing. :-)

- It's really cool to (honestly) say "Yes it is" when asked "Is that
your Arrow?". The closest I was able to do so in the past was answer
"Yes, it's ours by the hour" when asked about newer model rentals I
happed to be flying in.


--
Jack Allison
PP-ASEL-IA Student
Student Arrow Owner, N2104T

"When once you have tasted flight, you will forever walk the Earth
with your eyes turned skyward, for there you have been, and there
you will always long to return"
- Leonardo Da Vinci

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