X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from simmts7-srv.bellnexxia.net ([206.47.199.165] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3328447 for flyrotary@lancaironline.net; Wed, 03 Dec 2008 09:18:27 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.47.199.165; envelope-from=lacombr@nbnet.nb.ca Received: from simip9-ac.srvr.bell.ca ([206.47.199.87]) by simmts7-srv.bellnexxia.net (InterMail vM.5.01.06.13 201-253-122-130-113-20050324) with ESMTP id <20081203141750.LTQG2983.simmts7-srv.bellnexxia.net@simip9-ac.srvr.bell.ca> for ; Wed, 3 Dec 2008 09:17:50 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Au4GAC4kNkmOp1BK/2dsb2JhbACCQi6IFAbHQIJ/ Received: from fctnnbsc14w-142167080074.pppoe-dynamic.nb.aliant.net (HELO PCdeRita) ([142.167.80.74]) by simip9-ac.srvr.bell.ca with SMTP; 03 Dec 2008 09:24:13 -0500 Message-ID: From: "Rino" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Renesis fuel burn Date: Wed, 3 Dec 2008 10:17:20 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B8_01C95530.539C1960" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 This is a multi-part message in MIME format. ------=_NextPart_000_00B8_01C95530.539C1960 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks Tracy and Ed. I know the EM2 is not reading right -- yet, I am working on it. I just = wanted to know what I should expect for a reading. I just changed the = prop pitch -- again, it is now set at 18 deg. at 75 percent radius. = During the last prop. static test I got a maximum reading of 14.4 gph. = 5985 rpm, map 29. I know the engine is producing some power, I just = sent in my Climb Test Report and recorded 3820 ft. for a 3 minute climb. = The Glass Goose was 1900 lb. gross for the test. I keep the climb = speed at 100 mph to have enough air flow to cool the engine. I am = working on the cooling system at the moment. I would probably get a = better climb rate at a speed around 80 mph. For Ed. =20 I flew in Tom's aircraft and I know this one performs better. Tom's = Glass Goose has a 160 hp Lycoming. No water landings yet. I am at the airport, until next summer - it is = cold up here! The prop is a 4 blade, 65 in. ground adjustable Warp Drive. The redrive = is the RD-1A with a ratio of 2.176:1. I do not want to run the engine = above 6500 rpm. I am trying to achive 6500 rpm at top speed level = flight. One reading during flight: rpm 6350 MAP 29.6, fuel burn 10.8, EGT 1800 = (i figure it was very lean). I get about 120 mph level flight with an = engine speed of 6000 rpm at 2000 feet, The airstrip is at a level of 490 = ft. I figure it is not too bad for a Glass Goose. Rino ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Saturday, November 29, 2008 4:10 PM Subject: [FlyRotary] Re: Renesis fuel burn If you haven't calibrated the EM2 fuel flow yet, the GPH reading does = not mean anything. Don't make any decisions based on that reading. = Calibrating the fuel flow is the most difficult and time consuming parts = of EM2 setup. That's the down side of doing it with such an = inexpensive flow sensor ($0.00) since it has none. The other option is = to use a Floscan flow sensor with the EM2 but they are pricy. At 30" of manifold pressure and best power mixture setting and 6400 = RPM you should get a fuel burn somewhere around 15 - 18 GPH. The exact = amount will depend on other factors like exact mixture setting, your = intake manifold, exhaust system, air temp, etc. Tracy Crook On Thu, Nov 27, 2008 at 6:32 PM, Rino wrote: Where can I get information on fuel burn and power for the renesis? The maximum fuel burn I can get on takeoff is 11.7 gph (reading on = the EM2) at 64 00 rpm. The EM2 is not fully calibrated yet! I think = I should be able to get a higher fuel burn than that. The other part of the problem. What should be the intake manifold = runner length on the Renesis. Best power has to be between 6000 and = 6500 rpm limited by the propeller and redrive configuration. I cannot = use more than 65" dia. prop. The present runner length is 17" and I think it is not enough. Rino Lacombe Renesis powered Glass Goose ------=_NextPart_000_00B8_01C95530.539C1960 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks Tracy and Ed.
 
I know the EM2 is not reading right -- = yet,  I=20 am working on it.  I just wanted to know what I should expect for a = reading.  I just changed the prop pitch -- again, it is now set at = 18 deg.=20 at 75 percent radius.  During the last prop. static test I got = a=20 maximum reading of 14.4 gph. 5985 rpm, map 29.   I know the = engine is=20 producing some power, I just sent in my Climb Test Report and recorded = 3820 ft.=20 for a 3 minute climb.  The Glass Goose was 1900 lb. gross for = the=20 test.  I keep the climb speed at 100 mph to have enough air flow to = cool=20 the engine.  I am working on the cooling system at the = moment.  =20 I would probably get a better climb rate at a speed around 80 = mph.
 
For Ed. 
I flew in Tom's aircraft and I know = this one=20 performs better.  Tom's Glass Goose has a 160 hp = Lycoming.
No water landings yet.  I am at = the=20 airport, until next summer - it is cold up here!
The prop is a 4 blade, 65 in. ground = adjustable=20 Warp Drive.  The redrive is the RD-1A with a ratio of = 2.176:1.  I do=20 not want to run the engine above 6500 rpm.  I am trying to = achive 6500=20 rpm at top speed level flight.
 
One reading during flight: rpm = 6350  MAP 29.6,=20 fuel burn 10.8, EGT 1800  (i figure it was very lean).  I get = about=20 120 mph level flight with an engine speed of 6000 rpm at 2000 feet, The = airstrip=20 is at a level of 490 ft.  I figure it is not too bad for a Glass=20 Goose.
 
Rino
 
 
 
----- Original Message -----
From:=20 Tracy=20 Crook
Sent: Saturday, November 29, = 2008 4:10=20 PM
Subject: [FlyRotary] Re: = Renesis fuel=20 burn

If you haven't calibrated the EM2 fuel flow yet, the = GPH=20 reading does not mean anything.  Don't make any decisions based = on that=20 reading.   Calibrating the fuel flow is the most difficult = and time=20 consuming parts of EM2 setup.   That's the down side of = doing it=20 with such an inexpensive flow sensor ($0.00) since it has = none.  =20 The other option is to use a Floscan flow sensor with the EM2  = but they=20 are pricy.

  At 30" of manifold pressure and best power = mixture=20 setting and 6400 RPM you should get a fuel burn somewhere around 15 - = 18=20 GPH.  The exact amount will depend on other factors like exact = mixture=20 setting, your intake manifold, exhaust system, air temp, = etc.

Tracy=20 Crook

On Thu, Nov 27, 2008 at 6:32 PM, Rino <lacombr@nbnet.nb.ca> = wrote:
Where can I get=20 information on fuel burn and power for the = renesis?
The = maximum fuel=20 burn I can get on takeoff is 11.7 gph (reading on the EM2) at 64 00=20 rpm.   The EM2 is not fully calibrated yet!   I = think I=20 should be able to get a higher fuel burn than = that.
 
The = other part of=20 the problem.  What should be the intake manifold runner length = on the=20 Renesis.  Best power has to be between 6000 and 6500 = rpm=20 limited by the propeller and redrive configuration.   I = cannot use=20 more than 65" dia. prop.
 
The = present=20 runner length is 17" and I think it is not = enough.
 
Rino=20 Lacombe
Renesis powered=20 Glass=20 Goose

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