Rich,
I am flying the NA Renesis with MT
electric prop and wideband O2 sensor.
Take off and initial climb is WOT with
7100 rpm, after about 500 ft AGL, I dial the prop back to 6500 rpm, still
WOT. Cruise climb is WOT and 6000-6200 rpm, and cruise is WOT and
5200-5800 rpm. All climbs are at 12.0-12.5 F/A mixture and cruise is
15.8-16.0 F/A mixture.
I never move the throttle off of wide open
until I am slowing to enter the pattern for landing. Engine speed is controlled
with the prop and power to some extent with the mixture.
I have hopes that after Bobby makes his
decision as to whether to go with the turbo or the 20B, he will give me the
other one! :>)
Bill
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net]
Sent: Sunday, June 07, 2015 10:25
AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: new
operating question
My normal, not in a hurry settings.
38" MP / 7000 rpm for takeoff and initial climb with F/A
12.5-12.0. Cruise climb 5800 rpm 30-32" MP F/A 13.5- 12.5. Preferred
cruise rpm 4800- 5200 At less than 30" MP and F/A 15.8-16.0. Full
throttle. Prop rpm controls engine rpm and super charger bypass controls
MP. A turbo charger and automotive waste gate would likely require throttle
management during high rpm operations.
Super charged Renesis with electric MT prop.
(New Turbo charger and a 20B on the bench- still haven't made a
decision about upgrading the RV10. )
Greetings genlepeople of
the rotary pursuasion,
For those of you using variable pitch
(C/S) props, an operating question that has been bugging me. Perhaps the
collective wisdom of this group can set my mind at rest.
In piston aircraft engines, the concept
of running over squared MP vs RPM has been heavily questioned to the
extent that some suggest running at full throttle all the time and controlling
the power output via RPM (within reason). The thought is to, I believe,
eliminate the induction restriction of the butterfly valve increasing the
efficiency.
Now we have a rotor spinning, a gear box
gearing and a propeller propelling. Does this concept hold true for the
rotaries. What are people doing in terms of setting power after take off (full
throttle max RPM).
My enquiring and rotating mind wants to
know.
(Unturbocharged Renesis with RD1-c Box)