X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 22 Sep 2007 19:34:22 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d04.mx.aol.com ([205.188.157.36] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2346380 for lml@lancaironline.net; Sat, 22 Sep 2007 18:54:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.157.36; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-d04.mx.aol.com (mail_out_v38_r9.2.) id q.c6d.17a2c126 (48624) for ; Sat, 22 Sep 2007 18:53:23 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Sat, 22 Sep 2007 18:53:23 EDT Subject: Re: [LML] 360 engine baffling installation- Lack of Power X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1190501603" X-Mailer: AOL 9.0 VR sub 165 X-Spam-Flag: NO -------------------------------1190501603 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en =20 In a message dated 9/22/2007 10:10:29 A.M. Central Daylight Time, =20 LHenney@charter.net writes: I guess the correct answer to Chris is =E2=80=9CNo, I have no idea how much= power I=E2=80=99 m developing but would be curious to know=E2=80=9D. =20 Larry, =20 I apologize for my "rant." BUT, I have been in search of 75% power for many=20= =20 years with no relief. I am just as curious as you. I am ready to tie the=20 tail to a fish scale (attached to a steel hangar) and see just how much th= rust=20 I've really got. It is the only meaningful number. =20 =20 Of course, aviation engines max BHP is measured at 59F, zero MSL (29.92"Hg)= =20 while SAE BHP is measured at 77F, 29.235" Hg, realistically about 700 MSL=20 (Note that both assume 0% humidity). There is an immediate 5% difference i= n HP,=20 not counting the effect of water vapor. At least the SAE folks know the=20 engine is not operating ideally at the surface of the sea where, somehow, t= here=20 is no moisture present. =20 =20 My engine builder said I had a "strong" engine because the club was turning=20= =20 at a higher rpm than usual. Uh, I think that's torque. =20 Constant Speed props hide the truth further by not giving us the "gear =20 ratio". =20 Good Luck, =20 Grayhawk (Too old to care about minutiae - just try to fly alongside me at WOT, 2700= +=20 RPM) ************************************** See what's new at http://www.aol.com -------------------------------1190501603 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en
In a message dated 9/22/2007 10:10:29 A.M. Central Daylight Time,=20 LHenney@charter.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3D"Times New Roman" color=3D#= 0000ff=20 size=3D3>I guess the correct answer to Chris= is=20 =E2=80=9CNo, I have no idea how much power I=E2=80=99m developing but woul= d be curious to=20 know=E2=80=9D. 
Larry,
 
I apologize for my "rant." BUT, I have been in search of 75% power for=20= many=20 years with no relief.  I am just as curious as you.  I am rea= dy=20 to tie the tail to a fish scale (attached to a steel hangar)  and=20= see=20 just how much thrust I've really got.  It is the only meaningful=20 number. 
 
Of course, aviation engines max BHP is measured at 59F, zero=20= MSL=20 (29.92"Hg) while SAE BHP is measured at 77F, 29.235" Hg, realistic= ally=20 about 700 MSL (Note that both assume 0% humidity).  There is an=20 immediate 5% difference in HP, not counting the effect of water vapor. = At=20 least the SAE folks know the engine is not operating ideally at the surface=20= of=20 the sea where, somehow, there is no moisture present. 
 
My engine builder said I had a "strong" engine because the club was tur= ning=20 at a higher rpm than usual.  Uh, I think that's torque.
 
Constant Speed props hide the truth further by not giving us the "gear=20 ratio".
 
Good Luck,
 
Grayhawk
(Too old to care about minutiae - just try to fly alongside me at WOT,=20 2700+ RPM)



See what's new=20= at AOL.com and= Make AOL Your Homepage.
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