X-Virus-Scanned: clean according to Sophos on Logan.com X-Junk-Score: 2 [X] X-SpamCatcher-Score: 2 [X] Return-Path: Received: from [64.129.170.194] (HELO VIRCOM1.fcdata.private) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5560355 for flyrotary@lancaironline.net; Fri, 25 May 2012 14:33:38 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net Received: from FCD-MAIL05.FCDATA.PRIVATE (unverified [172.16.5.24]) by VIRCOM1.fcdata.private (Vircom SMTPRS 5.1.1024.13396) with ESMTP id ; Fri, 25 May 2012 13:32:11 -0500 X-Modus-BlackList: 172.16.5.24=OK;cbarber@texasattorney.net=OK X-Modus-RBL: 172.16.5.24=Excluded X-Modus-Trusted: 172.16.5.24=NO X-Modus-Audit: FALSE;0;0;0 Received: from FCD-MAIL06.FCDATA.PRIVATE ([fe80::697f:d6aa:b87:78d8]) by FCD-MAIL05.FCDATA.PRIVATE ([fe80::809d:a06e:5913:452e%13]) with mapi id 14.01.0355.002; Fri, 25 May 2012 13:32:29 -0500 From: Chris Barber To: "flyrotary@lancaironline.net" , REFLECTOR , Rotary Engine , "canard-aviators@yahoogroups.com" , "cozy_builders@googlegroups.com" , COZY Mailing List Subject: High speed taxi part 2 w/nose lift Thread-Topic: High speed taxi part 2 w/nose lift Thread-Index: Ac06pM2B6EoyHbgjT9+U33cJ2pfGlA== Date: Fri, 25 May 2012 18:32:56 +0000 Message-ID: <7AF103CC-8A73-4788-AFE6-2BE655047507@texasattorney.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 After getting my DAR inspection and Repairman Certificate a few weeks ago, = I did two high speed taxi test with disappointing results. The engine temps= on my two rotor 13b rotary were extremely high. Well into the 250 degree r= ange after the long taxi (9000 foot runway) and the quick jaunt down 17R. O= bviously unacceptable. I did seem to avoid engine damage apparently by grac= e and the short duration.=20 Over the last few weeks I have focused on cooling mods. This time I followe= d the advice from Paul Lamar's book "How to Cool Your Wankle" more honestly= and put the oil and coolant heat exchangers under the engine and a bit int= o the airstream for solid ram air.=20 Today I repeated the long taxi for high speed taxi test 3. Outside temp was= 96 degrees. Temps down Hotel stayed around 165 degrees to Alpha. I had to = wait for a Grauman to take off. Ran the engine up a bit to verify mixture. = By the time I called the tower to take the active coolant temps had gotten = to about 185.=20 I took a breath and smoothly added power and started my run down the center= line. Speed came in as I brought power to just over 5000 RPM. I reached 60= knots really quickly. (posted rotation speed range). I retarded the power= a bit to maintain 60 ish knots took a mental breath....and raised the nose= . The nose actually lifted Holy crap....that is almost flight. I brought b= ack power and the nose settled (uh, by settled, I mean bounced ;-)).=20 Ok. While really cool to me, the coolest part was when I noticed that when = I checked the coolant temp just as the nose was down, the coolant temp had = DROPPED to the high 170's. A drop. Imagine that!!! I pulled off at Charlie and taxied back to my hangar with the temps around.= 185. They just hit 190 before I shut down. Again, it is in the mid 90's to= day.=20 I don't know about y'all, but this has been a pretty good day off so far.=20 Thanks for your support.=20 Chris Barber Houston KEFD Velocity SE/FG Rotary 13b turbo w/Mistral Intake RWS PSRU/EC2/EM2 Dynon SkyView SV-7 Sent from my iPhone 4=