X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from einstein.rea-alp.com ([65.165.161.4] verified) by logan.com (CommuniGate Pro SMTP 5.1.1) with ESMTPS id 1531325 for flyrotary@lancaironline.net; Mon, 06 Nov 2006 09:23:19 -0500 Received-SPF: none receiver=logan.com; client-ip=65.165.161.4; envelope-from=lerohl@rea-alp.com Received: from lerohl (usr5-133.rea-alp.com [216.168.81.133]) by einstein.rea-alp.com (8.13.6/8.12.11) with SMTP id kA6EMmUY013748 for ; Mon, 6 Nov 2006 08:22:53 -0600 (CST) (envelope-from lerohl@rea-alp.com) Message-ID: <01a501c701ae$9ae0a7a0$8551a8d8@lerohl> From: "Gaylen Lerohl" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: First flight, RV-8 N5093F Date: Mon, 6 Nov 2006 08:19:42 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01A2_01C7017C.4F9E5EE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_01A2_01C7017C.4F9E5EE0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable MessageListers, Give me a couple of days and I'll get back with design details and more = on in-flight results. Flew two more rides yesterday, 2.4 hours total. = I need some left rudder at all speeds. I'll review "P" Factor material, = do some careful measurements and see if some of the problem can be = shimmed out. I'll hold off messing with trim tabs if there is another = way.=20 At full throttle and stabilized level flight the engine is turning 5200 = RMP at 125 Kt indicated (no wheel pants or gear leg fairings) I have a = couple of ideas to try to improve power that I'll work on as able. I = haven't done an airspeed check yet. The left wing is heavy but can be = trimmed out. I'll wait awhile before massaging the aileron trailing = edge. =20 If the ball is centered, there is no wing drop in the stall. Cooling has not been an issue either on the ground or in the air. I had = about 12 hours ground running and lots of taxi time with the tail up and = down. There haven't been any serious issues with the engine = installation (yet!) There is a pesky oil leak (or seepage depending on = how anal one is!!). My hangar mate, who teaches diesel mechanics at the = local tech school, gave me some die and a black light to locate the = leak. The big one was the stock oil dipstick allowing oil to splash = out. Solved that with three small "o" rings pushed on to the dipstick = seal. There is still oil seeping around the back (front in the auto) = cover. At some point I'll pull the engine and reseal it, but not now. Yes Rusty, 13B nearly stock; 2.17 : 1 gearbox; EC2 Controller and = Tracy's 68 X 71 Performance prop. Stock oil cooler and a slightly = modified Griffin radiator used by the dune buggy guys with a Sirocco = engine. Stand by for more! Regards, Gaylen Lerohl ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Saturday, November 04, 2006 19:59 Subject: [FlyRotary] Re: First flight, RV-8 N5093F First flight today. =20 Congratulations Gaylen! The temps sure sound good.=20 How about refreshing our memory with some details of your = installation. I'm guessing 13B, with the 2.17 redrive and Tracy's old = prop. What are you using for oil and water cooling? I'm also curious what your empty weight and empty CG came out to. = FWIW, mine is 1080 lbs, with an empty CG of 76.0", which is pretty nose = heavy. =20 Cheers, Rusty (first engine run today, DAR next Sat) =20 ------=_NextPart_000_01A2_01C7017C.4F9E5EE0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Message
Listers,
 
Give me a couple of days and I'll get = back with=20 design details and more on in-flight results.  Flew two more rides=20 yesterday, 2.4 hours total.  I need some left rudder at all = speeds. =20 I'll review "P" Factor material, do some careful measurements and see if = some of=20 the problem can be shimmed out.  I'll hold off messing with trim = tabs if=20 there is another way. 
 
At full throttle and stabilized level = flight the=20 engine is turning 5200 RMP at 125 Kt indicated (no wheel pants or gear = leg=20 fairings)  I have a couple of ideas to try to improve power that = I'll work=20 on as able.  I haven't done an airspeed check yet.  The left = wing is=20 heavy but can be trimmed out.  I'll wait awhile before massaging = the=20 aileron trailing edge.  
 
If the ball is centered, there is no = wing drop in=20 the stall.
 
Cooling has not been an issue either = on the ground=20 or in the air.  I had about 12 hours ground running and lots of = taxi time=20 with the tail up and down.  There haven't been any serious issues = with the=20 engine installation (yet!)  There is a pesky oil leak (or seepage = depending=20 on how anal one is!!).  My hangar mate, who teaches diesel = mechanics at the=20 local tech school, gave me some die and a black light to locate the = leak. =20 The big one was the stock oil dipstick allowing oil to splash out.  = Solved=20 that with three small "o" rings pushed on to the dipstick seal.  = There is=20 still oil seeping around the back (front in the auto) cover.  At = some point=20 I'll pull the engine and reseal it, but not now.
 
Yes Rusty, 13B nearly stock; 2.17 : = 1 =20 gearbox;  EC2 Controller and Tracy's 68 X 71 Performance = prop.  =20 Stock oil cooler and a  slightly modified Griffin radiator used by = the dune=20 buggy guys with a Sirocco engine.  Stand by=20 for more!
 
Regards,
Gaylen Lerohl
 
 
 
 
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Saturday, November 04, = 2006=20 19:59
Subject: [FlyRotary] Re: First = flight,=20 RV-8 N5093F

First = flight=20 today.   
 
Congratulations Gaylen!  The temps = sure sound=20 good.
 
How about refreshing our memory with some = details of=20 your installation.  I'm guessing 13B, with the 2.17 redrive and = Tracy's=20 old prop.  What are you using for oil and water=20 cooling?
 
I'm also curious what your empty weight=20 and empty CG came out to.  FWIW, mine is 1080 lbs, = with an=20 empty CG of 76.0", which is pretty=20 nose heavy.  
 
Cheers,
Rusty (first engine run today, DAR next=20 Sat)
 
 
 
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