X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 15 Aug 2011 07:39:45 -0400 Message-ID: X-Original-Return-Path: Received: from [205.186.160.203] (HELO server.rmcginc.com) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5091769 for lml@lancaironline.net; Sun, 14 Aug 2011 10:52:15 -0400 Received-SPF: none receiver=logan.com; client-ip=205.186.160.203; envelope-from=r.rickard@rcginc-us.com Received: (qmail 5964 invoked from network); 14 Aug 2011 07:51:38 -0700 Received: from 24-107-105-58.dhcp.stls.mo.charter.com (HELO ?192.168.1.250?) (24.107.105.58) by rmcomserver.com with SMTP; 14 Aug 2011 07:51:38 -0700 Subject: Re: [LML] FW: [LML] What are your numbers?? References: From: Bob Rickard Content-Type: multipart/alternative; boundary=Apple-Mail-1-18848461 X-Mailer: iPad Mail (8L1) In-Reply-To: X-Original-Message-Id: X-Original-Date: Sun, 14 Aug 2011 09:51:36 -0500 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPad Mail 8L1) --Apple-Mail-1-18848461 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Ralf On the subject of running LOP, suggest taking GAMI's online course. It's ve= ry much worth the money and time, and you will learn a ton. You can actuall= y run LOP at full power if you know what you are doing and have the engine m= onitoring capability. The course shows you scientifically why it's possibl= e, and will let you figure out your own techniques. I fly in 2 modes, one f= or speed and one for economy cruise, both LOP. 34" MAP, 2500 RPM, 18 GPH for speed 31" MAP, 2400 RPM, 15.1 GPH for range=20 Bob R On Aug 14, 2011, at 8:27 AM, wrote: > Hello Craig, >=20 > =20 >=20 > Do you have the GAMI injectors or was your engine set up in a special way?= >=20 > I thought that LOP operations are approved up to 28 inHG. I would like to r= un mine with 32 inHg but I am afraid to damage something. >=20 > Here is what I see so far: >=20 > Climb =E2=80=93 full power =E2=80=93 full rich (this gives me the coolest t= emps) =E2=80=93 160=E2=80=A6170 IAS =E2=80=93 CHT 380 =E2=80=93 390 =E2=80=93= results in 1600 ft/min (beginning) 800 ft/min (end) >=20 > Level off at FL22, FL23 =E2=80=93 full power =E2=80=93 full rich =E2=80=93= TAS 292=E2=80=A6297 (on the bezel =E2=80=93 I know this reads high) =E2=80=93= #3+4 CHT 380 - 390 >=20 > After this LOP at FL22, FL23 at 28 inHG, 16.1 gph =E2=80=93 TAS 270=E2=80=A6= 275 (on the bezel) =E2=80=93 #1 CHT 360=E2=80=A6375 >=20 > Like I said I would like to run it at 32 inHg LOP but I am afraid I damage= something. >=20 > =20 >=20 > Ralf >=20 > =20 >=20 > From: Craig Berland. [mailto:cberland@systems3.net]=20 > Sent: Friday, August 12, 2011 2:48 PM > To: lml@lancaironline.net > Subject: [LML] What are your numbers?? >=20 > =20 >=20 > Going to Oshkosh: >=20 > 25,000 ft >=20 > ISA +36 degF >=20 > 2500 RPM >=20 > 32 inHg >=20 > 16.9 gph LOP >=20 > 276 kts TAS (Chelton) >=20 > 374 degF, #2 CHT >=20 > 5.1 psi cabin pressure >=20 > In my limited IV-P time, I see about 3 kts per 1000 ft altitude increase. C= HT=E2=80=99s at 18,000 ft are very low (345 degF) and CHT=E2=80=99s at 25,00= 0 ft are as above when LOP. I don=E2=80=99t fly ROP except for climb. OAT s= ignificantly affects fuel flow and therefore speed when LOP. The IV-P is a f= antastic traveling machine. >=20 > =20 >=20 > Craig Berland >=20 > N7VG >=20 > =20 >=20 > =20 >=20 > Hello guys >=20 > So today I was happy flying with my 4p going from Daytona to Raleigh and w= as wondering what cruise numbers you are using. >=20 > For example I was cruising with a MAP of 29, FF=3D16.7, 2500rpm and did 23= 4kts at 17500ft. >=20 > The plane seemed to be very happy, temps were perfect, engine sounded happ= y. >=20 > So what are your numbers? LOP? ROP? Ron Stevens --Apple-Mail-1-18848461 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Ralf

On the su= bject of running LOP, suggest taking GAMI's online course.  It's very m= uch worth the money and time, and you will learn a ton.  You can actual= ly run LOP at full power if you know what you are doing and have the engine m= onitoring capability.   The course shows you scientifically why it's po= ssible, and will let you figure out your own techniques.  I fly in 2 mo= des, one for speed and one for economy cruise, both LOP.

34" MAP, 2500 RPM, 18 GPH for speed

31" MAP, 2= 400 RPM, 15.1 GPH for range 

Bob R
<= br>

On Aug 14, 2011, at 8:27 AM, <bronnenmeier@GROBSYSTEMS.COM> wrote:

Hello Craig,

 <= /span>

Do you have the G= AMI injectors or was your engine set up in a special way? =

I thought that LOP oper= ations are approved up to 28 inHG. I would like to run mine with 32 inHg but= I am afraid to damage something.

Here is what I see so far:

=

Climb =E2=80=93 full power =E2= =80=93 full rich (this gives me the coolest temps) =E2=80=93 160=E2=80=A6170= IAS =E2=80=93 CHT 380 =E2=80=93 390 =E2=80=93 results in 1600 ft/min (begin= ning) 800 ft/min (end)

Level off at FL22, FL23 =E2=80=93 full power =E2=80=93 full= rich =E2=80=93 TAS 292=E2=80=A6297 (on the bezel =E2=80=93 I know this read= s high) =E2=80=93 #3+4 CHT 380 - 390

After this LOP at FL22, FL23 at 28 inHG, 16.1= gph =E2=80=93 TAS 270=E2=80=A6275 (on the bezel) =E2=80=93 #1 CHT 360=E2=80= =A6375

 

Ralf

 

From: Craig Berland. [mailto:cberland@systems3.n= et]
Sent: Friday, August 12, 2011 2:48 PM
To: lml@= lancaironline.net
Subject: [LML] What are your numbers??

 

=

Going to Oshkosh:

25,000 ft

ISA +36= degF

= 2500 RPM

32 inHg

16.9 gph LOP

276 kts TAS (Chelton)

374 degF, #2 CHT

5.1 psi cabin pressure

In my limited IV-P ti= me, I see about 3 kts per 1000 ft altitude increase. CHT=E2=80=99s at 18,000= ft are very low (345 degF) and CHT=E2=80=99s at 25,000 ft are as above when= LOP.  I don=E2=80=99t fly ROP except for climb.  OAT significantl= y affects fuel flow and therefore speed when LOP.  The IV-P is a fantas= tic traveling machine.

 

Craig Berland

= N7VG

 

 

Hello guys

So today I was happy flying with m= y 4p going from Daytona to Raleigh and was wondering what cruise numbers you= are using.

For example I was cruising with a MAP of 29, FF=3D16.7, 2500r= pm and did 234kts at 17500ft.

The plane seemed to be very happy, temps we= re perfect, engine sounded happy.

So what are your numbers? LOP? ROP? Ron Stevens=

= --Apple-Mail-1-18848461--