Dec-16-14
A compliment to your Excellant prop rendition,s
Sec-505 --
******* Wow found Unknown Pr-Hg -- *******
Pitch increment for climb --
We all know you loose torque at high speed ,
what this does is transfer more torque at
less prop speed ,, Strickly a climb Attribute ,
It makes for better reality , cause now
you can slow the prop speed -- from high = 100%
to roughly = 90% and pull
more climb ability , maintain better climb speed ,,
and climb faster , than you can at full throttle
high prop speed , simulates a change in prop pitch ,
What seems to work best is -18.0---to -22.0
whether it changes prop pitch , or tip,s the
aircraft balance = COG I don,t know , but it
work,s ,,
I,m guessing a change in prop pitch molly !!
Disclaimer ---!!
(( remember different planes have variable
engine to Prop -- Ratio,s ))
and of course not to be used on the
Watt,s Prop Hurricane !
Fixed pitch wood prop 2 blade
Max RPM climb drops speed faster ,
where as 90% RPM maintain,s better climb ,,
This does not change prop speed , You have to bring ,
the prop back manually , adjust trim pitch for climb
checking your mixture at altitude gain,s ,
During climb out
If you go to Max prop speed , the power and speed
of climb rate drop back ,,
Back to 90% RPM and
your climb speed goes back up ,,
Does this mean you have faster speed than 100 %
RPM ?
No ,, not if your properly trimed for level
flight , Max Rpm on my Spitfire climbed to 350 mph
and going back to 90% RPM droped back to 332 mph ,,
Seem,s to work quite well ,,
I,m not a pilot , but my old boss , a Dutch mechanic
was a private pilot , and I got to fly with him
a couple times , and he explained take off ,
prop pitch , and how variable props work ,,
Leiston Airfield -- Take off
-- test 1
-- Clock up
Timed roll out --
UN- TRIMED
Trim -Pitch = Stock setting
Full Throttle
Prop Pitch = 90%
Flaps = half runway
Lift off secondary cross runway 120 Mph -
Wheels up + flap up
Climb out stick control --
Adjust mixture for climb
4 minutes duration + paused
Altitude = 4,256 ft --
Test 2
-- Clock up
Timed roll out -- (+5.0 Sec,s Cheat)
UN- TRIMED
Trim -Pitch = Stock setting
Full Throttle
Prop Pitch = 100%
Flaps = half runway
Lift off secondary cross runway 110 Mph -
Wheels up + flap up
Climb out stick control --
Adjust mix for climb
4 minutes duration + paused
Altitude = 3,921 ft --
Basically a test to see if the changes effect take off
roll-out , and to see if a canned routeen was used
by M$s for take off --
Disclaimer --
All testing done at 75-% Sim Rate !!
which allows, me to moniture test results
easier !!
A couple of lines to post to air Edd Inni file ------
Optional of course !!
Sec505
11=40,double,*Prop Pitch Torque at 90% RPM
11h=Usually 1.0 if Turbo/old/ 90% P-Pitch = (-18.0/-22.0)
Or dissregard and stay with a constant speed prop !
At your option of choice Sir ,
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