Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.2.3) with ESMTP id 432040 for flyrotary@lancaironline.net; Sat, 25 Sep 2004 11:00:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20040925145954.RSPN1792.imf22aec.mail.bellsouth.net@rd> for ; Sat, 25 Sep 2004 10:59:54 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] First Flight with Monster Prop Date: Sat, 25 Sep 2004 10:00:09 -0500 Message-ID: <017101c4a310$59e5c090$04000100@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0172_01C4A2E6.710FB890" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0172_01C4A2E6.710FB890 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable It was taking quite a bit of right rudder to keep the nose pointed = straight ahead - but with the nose wheel all was managable - until I lifted off.=20 =20 Is this still with left offset in your mount, or did you take that out?=20 =20 The good news was ROC was over 1500 fpm which for my lead sled was about 400-500 fpm greater than normally with a full load of fuel.=20 =20 What rpm were you seeing in climb, compared with this same intake = before? I'm wondering if this increase in climb is a result of making more = power, or just better prop efficiency. =20 =20 Also, this was the first flight with my 2 GM cores inlet area reduced to = a total of 28 sq inches, temperatures were what I would excect on = climb-out on a 65F OAT day. Oil was approaching 200F and coolant 210F when leveled = off at 3000MSL and soon dropped down to 165 Oil and 170 coolant at 5200 rpm = at 6 GPH fuel burn.=20 =20 This is interesting. You can't really compare the water temp, since the inlets were changed, but are you saying the oil temp is the same as what = you would have had with the old redrive and prop? Mine went from great, to = out of control with the changeover. =20 =20 So hopefully the computer is finished with its problems and I will = report more from next flight. So all in all I am very pleased with the first flight. My intially impression is I may need to have the prop trimmed = an inch or so as I would like a bit more rpm for take off and climbout. = But, will conduct a bunch more flights before deciding=20 =20 I agree that it all sounds very promising. Congrats! =20 Rusty (finishing in the engine compartment today, removing rudder and aileron for repairs)=20 =20 =20 ------=_NextPart_000_0172_01C4A2E6.710FB890 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
It was taking quite a bit of = right rudder to=20 keep the nose pointed straight ahead - but with the nose wheel all was = managable=20 - until I lifted off. 
 
Is this still with left offset in your mount, = or did you=20 take that out? 
 
The good news was ROC was over = 1500 fpm which=20 for my lead sled was about 400-500 fpm greater than normally with a full = load of=20 fuel. 
 
What rpm were you seeing in climb, compared = with this same=20 intake before?  I'm wondering if this increase in climb is a = result of=20 making more power, or just better prop efficiency. =20    
 
Also, this was the first flight = with my 2 GM=20 cores inlet area reduced to  a total of 28 sq inches, temperatures = were=20 what I would excect on climb-out on a 65F OAT day.  Oil was = approaching=20 200F and coolant 210F when leveled off at 3000MSL and soon dropped down = to 165=20 Oil and 170 coolant at 5200 rpm at 6 GPH fuel burn. 
 
This is interesting.  You can't really = compare the=20 water temp, since the inlets were changed, but are you saying the oil = temp is=20 the same as what you would have had with the old redrive and prop?  = Mine=20 went from great, to out of control with the changeover. =20
 
So hopefully the computer is = finished with=20 its problems and I will report more from next flight.  So all in = all I am=20 very pleased with the first flight.  My intially impression is I = may need=20 to have the prop trimmed an inch or so as I would like a bit more rpm = for take=20 off and climbout.  But, will conduct a bunch more flights before=20 deciding 
 
I agree that it all sounds very=20 promising.  Congrats!
 
Rusty (finishing in the engine compartment = today,=20 removing rudder and aileron for = repairs) 
 
 
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