Return-Path: Received: from [199.185.220.223] (HELO priv-edtnes51.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 245719 for flyrotary@lancaironline.net; Wed, 07 Jul 2004 03:20:08 -0400 Received: from Endurance ([207.216.170.43]) by priv-edtnes51.telusplanet.net (InterMail vM.6.01.03.02 201-2131-111-104-20040324) with SMTP id <20040707071938.JVJC3691.priv-edtnes51.telusplanet.net@Endurance> for ; Wed, 7 Jul 2004 01:19:38 -0600 From: "Todd Bartrim" To: "Rotary motors in aircraft \(E-mail\)" Subject: Flight Data Date: Wed, 7 Jul 2004 00:19:32 -0700 Message-ID: <009c01c463f2$c0cc81c0$0101a8c0@Endurance> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2739.300 Importance: Normal So I'm thinking that if the EM2 had datalogging and somebody wrote a small program to display it on a PC, then we could easily share that data on the list and everybody that doesn't have one would say "oooooh, I want one too, no I really need one", then Tracy will sell many more of them and we all win :-) Sounds good right Tracy? In the meantime I will manually enter some data that I scrawled down while flying again today (13.4 hours in 4 days) The first one is dual pilot from Sunday's flight, while the others are single pilot, 3/4 fuel, and all data is from either the EM2 or Dynon. The EM2 has not been calibrated for fuel flow yet but I think it is reading ~5% high. The % power and HP figures are directly from the EM2 and are dependant on fuel flow reading, so don't take them too seriously. I was trying to determine cruise efficiency at various power settings here. 60% power 15000 ASL 28.5" MAP 5500 RPM 112 HP 148 KTAS 0 VSI 55% power (cruise climb) 10800 ASL 27.1"MAP 5500 RPM 10.3 GPH 16.2 MPG 140 KTAS +150 VSI 55% power 11200 ASL 27" MAP 5600 RPM 10.1 GPH 16.5 MPG 145 KTAS 0 VSI 50% power 10500 ASL 25" MAP 5100 RPM 8.5 GPH 18.5 MPG 133 KTAS 0 VSI 40% power 9400 ASL 25" MAP 4800 RPM 7.5 GPH 18.7 MPG 122 KTAS 0 VSI Climb rates with 2 pilots aboard, ~3/4 fuel @~10000 ASL 80-90 mph = 1500' per min 110 mph = 100' per min 120-130 mph = 700' per min Climb rate with single pilot, ~3/4 fuel from 2200' up to 5500' ASL 90 mph = 2500 ' per min I'll get more climb data on the next flight. While I'm not displeased about these numbers I was hoping for a little better, but I still have a long ways to go with everything. I think my prop could be holding me back a little. I do like the constant speed IVO but would like to try the deep pitch blades, however before I spring for those I'll likely either trim the blades a little (76") or reprofile them as Dave Atkins has. In the meantime I'm just extremely happy to flying with the engine running great and without that damn header tank. I'll still get around to describing my new fuel system in more detail as was asked, but right now I have to call it a night. If the weather holds I'll be flying again after work tomorrow so I might not answer then either:-) Todd Bartrim (32.2 hours total)   RV9Endurance 13B Turbo Rotary C-FSTB              "The world will always have a place for those that bring hard work and determination to the things they do."