X-Virus-Scanned: clean according to Sophos on Logan.com From: Received: from omr-m09.mx.aol.com ([64.12.143.82] verified) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTPS id 7739084 for flyrotary@lancaironline.net; Sun, 07 Jun 2015 21:06:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.82; envelope-from=ARGOLDMAN@aol.com Received: from mtaomg-aae02.mx.aol.com (mtaomg-aae02.mx.aol.com [172.27.1.100]) by omr-m09.mx.aol.com (Outbound Mail Relay) with ESMTP id 6D10B7058E18E for ; Sun, 7 Jun 2015 21:05:38 -0400 (EDT) Received: from core-aba01a.mail.aol.com (core-aba01.mail.aol.com [172.27.22.1]) by mtaomg-aae02.mx.aol.com (OMAG/Core Interface) with ESMTP id 4702338000081 for ; Sun, 7 Jun 2015 21:05:38 -0400 (EDT) Full-name: ARGOLDMAN Message-ID: <18add5.6e7f3ac8.42a64461@aol.com> Date: Sun, 7 Jun 2015 21:05:18 -0400 Subject: Re: [FlyRotary] Re: new operating question To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_18add5.6e7f3ac8.42a64461_boundary" X-Mailer: AOL 9.7 sub 4049 X-Originating-IP: [67.167.236.80] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20140625; t=1433725538; bh=Mu6ITROIY7aGfNxUcUc8pCxPd51HRJozaz1uEJw3414=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=dzfHWogpWgMZjPVSkNEpbbqIQuVlIXs+4RGPUOzn5lfZv+US3wd4exZ/TUYLM1Dz1 qRdwEbXuAr4DDqy7tCHgH6efiAH8GTXl+Oz2G1WO0RRVldD9WOoP7x4E26k1KU7+ZL Q4IbaUO5WTBWjuMuObISMVExONSY6ZS+8h/wjSL0= x-aol-sid: 3039ac1b01645574ea626547 --part1_18add5.6e7f3ac8.42a64461_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Thanks Bill that is what I am looking for Rich In a message dated 6/7/2015 2:59:50 P.M. Central Daylight Time, flyrotary@lancaironline.net writes: 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 Rich, 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. Bobby Hughes 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. ) Sent from my iPad On Jun 7, 2015, at 9:34 AM, ARGOLDMAN <_flyrotary@lancaironline.net_ (mailto:flyrotary@lancaironline.net) > wrote: 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) Thanks Rich --part1_18add5.6e7f3ac8.42a64461_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Thanks Bill that is what I am looking for
 
Rich
 
In a message dated 6/7/2015 2:59:50 P.M. Central Daylight Time,=20 flyrotary@lancaironline.net writes:

Rich,

I am flying= the NA=20 Renesis with MT electric prop and wideband O2=20 sensor.

 

Take off and= initial=20 climb is WOT with 7100 rpm, after about 500 ft AGL, I dial the prop back= to=20 6500 rpm, still WOT.  Cruise climb is WOT and 6000-6200 rpm, and cr= uise=20 is WOT and 5200-5800 rpm.  All climbs are at 12.0-12.5 F/A mixture= and=20 cruise is 15.8-16.0 F/A mixture.

 

I never move= the=20 throttle off of wide open until I am slowing to enter the pattern for=20 landing.  Engine speed is controlled with the prop and power to som= e=20 extent with the mixture.

 

I have hopes= that=20 after Bobby makes his decision as to whether to go with the turbo or the= 20B,=20 he will give me the other one!   :>)

 

Bill=20

 

From:<= /SPAN>=20 Rotary motors in aircraft= =20 [mailto:flyrotary@lancaironline.net]
Sent: Sunday, June 07, 2015 10:25= =20 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: new oper= ating=20 question

 

Rich, 

My normal, not in a hurry=20 settings. 

 

38" MP / 7000 rpm for takeoff and initial clim= b with=20 F/A 12.5-12.0. Cruise climb 5800 rpm 30-32" MP F/A 13.5- 12.5. Preferred= =20 cruise rpm 4800- 5200 At less than 30" MP and F/A 15.8-16.0.  Full= =20 throttle.  Prop rpm controls engine rpm and super charger bypass co= ntrols=20 MP. A turbo charger and automotive waste gate would likely require throt= tle=20 management during high rpm=20 operations. 

 

Bobby Hughes 

Super charged Renesis with electric MT=20 prop.

(New Turbo charger and a 20B on the bench- sti= ll=20 haven't made a decision about upgrading the RV10.=20 )

 



Sent from my=20 iPad


On Jun 7,= 2015, at=20 9:34 AM, ARGOLDMAN <flyrotary@lancaironline.net<= /A>>=20 wrote:

Greetings= =20 genlepeople of the rotary pursuasion,

 

For those= of you=20 using variable pitch (C/S) props, an operating question that has been= =20 bugging me. Perhaps the collective wisdom of this group can set my min= d at=20 rest.

 

In piston= aircraft=20 engines, the concept of running over squared  MP vs RPM has= been=20 heavily questioned to the extent that some suggest running at full thr= ottle=20 all the time and controlling the power output via RPM (within reason).= The=20 thought is to, I believe, eliminate the induction restriction of the= =20 butterfly valve increasing the=20 efficiency.

 

Now we hav= e a=20 rotor spinning, a gear box gearing and a propeller propelling. Does th= is=20 concept hold true for the rotaries. What are people doing in terms of= =20 setting power after take off (full throttle max=20 RPM).

 

My enquiri= ng and=20 rotating mind wants to know. 

 

(Unturboch= arged=20 Renesis with RD1-c Box)

 

Thanks

 

Rich

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