Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 380778 for flyrotary@lancaironline.net; Fri, 27 Aug 2004 09:09:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=sqpilot@bellsouth.net Received: from Carol ([209.214.45.128]) by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with SMTP id <20040827130833.YZIY1794.imf25aec.mail.bellsouth.net@Carol> for ; Fri, 27 Aug 2004 09:08:33 -0400 Message-ID: <007201c48c36$ec0d6540$802dd6d1@Carol> From: "paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] More rev-3 tests Date: Fri, 27 Aug 2004 08:08:17 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006F_01C48C0D.027D5C10" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1437 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 This is a multi-part message in MIME format. ------=_NextPart_000_006F_01C48C0D.027D5C10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageHey, Rusty.....your posts are FAR from boring. We appreciate = that you take the time to share your experiments and results with us. = Please keep them coming. Paul Conner ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Wednesday, August 25, 2004 9:49 PM Subject: [FlyRotary] More rev-3 tests Greetings, Attached is today's log. I think I'm on the right track, though if I = keep adding power, I'll need some more oil cooling. Water is fine, but = oil is getting up there fast. =20 BTW, if you guys are getting tired of reading these, let me know. I = don't really wish to spam the group with this stuff if it's not of = general interest. =20 Cheers, Rusty (finally seeing potential) 8-25-04 .4 hours / 30.1 total =20 Added a trim tab today on the rudder. The business end of it is about = 7 inches tall, and 1.25 inches wide. I bent it about 30 degrees, and = found out that it's way too much. Now, instead of having the ball about = half way to the right, it's about 2/3 of the way to the left. Took out = about half the bend after the flight. =20 =20 Again, the takeoff was no problem. Once you get the tail up at low = power, it's easy to balance rudder with additional throttle. I may = actually end up leaving the mount like it is for the foreseeable future. = =20 =20 After yesterday's tests, I decided to try flying the plane with the TB = open to the inside of the cowling. I did leave the old inlet tubes = pointing in the general direction of the TB, to at least give it some = cooler air. There is certainly no ram air pressure though. =20 =20 During the takeoff, I got a real sense of increased power. Climb out = at 130 mph was 6000 rpm, up from 5800 with the inlets connected, but = still down from the 6200 that Tracy reported. MAP was only 26.5. =20 I could only play at 1400 ft today, and ran a couple flat out bursts = of about 30 seconds each. TAS only showed 190, which I'm going to have = to test because I think it must be wrong. Map was 26 inches, and rpm = was 6500. This is 300 rpm more than when I had the inlet connected, but = probably lower MAP. =20 =20 I think what I need now is an improved ram air inlet, that continues = to use the current air horns. I feel like this will be the key to = getting the performance I hoped for, but unfortunately, I don't know if = I'll be able to do it without making a completely new scoop for just the = TB. Naturally, the most convenient place for that new scoop is on top = of the cowl, similar to what Tracy did before. I'm trying to resist, = but I think it's almost inevitable at this point. I just don't have = space to route a large enough duct around the engine. =20 =20 Finally, I'm happy to report a significant reduction in my personal = aft temperature with the new tailpipe. It was noticeably quieter as = well. Most importantly, I didn't smell exhaust once!!!=20 ------=_NextPart_000_006F_01C48C0D.027D5C10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Hey, Rusty.....your posts are FAR from=20 boring.  We appreciate that you take the time to share your = experiments and=20 results with us. Please keep them coming.  Paul Conner
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Wednesday, August 25, = 2004 9:49=20 PM
Subject: [FlyRotary] More rev-3 = tests

Greetings,
 
Attached is = today's=20 log.  I think I'm on the right track, though if I keep adding = power, I'll=20 need some more oil cooling.  Water is fine, but oil is getting up = there=20 fast. 
 
BTW, if you = guys are=20 getting tired of reading these, let me know.  I don't really wish = to spam=20 the group with this stuff if it's not of general interest. =20
 
Cheers,
Rusty = (finally seeing=20 potential)
 
 
 
 

8-25-04  .4 hours / 30.1 = total

 

Added a trim tab=20 today on the rudder.  = The business=20 end of it is about 7 inches tall, and 1.25 inches wide.  I bent it about 30 degrees, = and found=20 out that it=92s way too much.  = Now,=20 instead of having the ball about half way to the right, it=92s about = 2/3 of the=20 way to the left.  Took = out about=20 half the bend after the flight. =20

 

Again, the takeoff=20 was no problem.  Once = you get the=20 tail up at low power, it=92s easy to balance rudder with additional=20 throttle.  I may = actually end up=20 leaving the mount like it is for the foreseeable future. 

 

After yesterday=92s=20 tests, I decided to try flying the plane with the TB open to the = inside of the=20 cowling.  I did leave = the old=20 inlet tubes pointing in the general direction of the TB, to at least = give it=20 some cooler air.  There = is=20 certainly no ram air pressure though. =20

 

During the=20 takeoff, I got a real sense of increased power.  Climb out at 130 mph was = 6000 rpm, up=20 from 5800 with the inlets connected, but still down from the 6200 that = Tracy reported.  MAP was only = 26.5.

 

I = could only play=20 at 1400 ft today, and ran a couple flat out bursts of about 30 seconds = each.  TAS only showed = 190, which=20 I=92m going to have to test because I think it must be wrong.   Map was 26 inches, and rpm = was=20 6500.  This is 300 rpm = more than=20 when I had the inlet connected, but probably lower MAP. 

 

I = think what I=20 need now is an improved ram air inlet, that continues to use the = current air=20 horns.  I feel like this = will be=20 the key to getting the performance I hoped for, but unfortunately, I = don=92t=20 know if I=92ll be able to do it without making a completely new scoop = for just=20 the TB.  Naturally, the = most=20 convenient place for that new scoop is on top of the cowl, similar to = what=20 Tracy did before.  I=92m trying to resist, but = I think it=92s=20 almost inevitable at this point. =20 I just don=92t have space to route a large enough duct around = the=20 engine. 

 

Finally, I=92m happy=20 to report a significant reduction in my = personal aft=20 temperature with the new tailpipe. =20 It was noticeably quieter as well.  Most importantly, I didn=92t = smell=20 exhaust once!!!

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