X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-4.exch003intermedia.net ([207.5.74.111] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTPS id 3497403 for flyrotary@lancaironline.net; Tue, 17 Feb 2009 13:01:57 -0500 Received-SPF: none receiver=logan.com; client-ip=207.5.74.111; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-4.exch003intermedia.net ([207.5.74.111]) with mapi; Tue, 17 Feb 2009 10:00:56 -0800 From: Jeff Whaley To: 'Rotary motors in aircraft' Date: Tue, 17 Feb 2009 10:01:20 -0800 Subject: Successful flight at last Thread-Topic: Successful flight at last Thread-Index: AcmRKbypEzmbDQqWTnqe77I79QuZTQ== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0ED14653A162EXVMBX0035exc_" MIME-Version: 1.0 --_000_C03ABB0A7362B84BB53D544B3C305E0ED14653A162EXVMBX0035exc_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable On Saturday we made the first "successful" test flight of the rotary engine= installation. Previous flights had too high water temps and/or too high oi= l temps and a low coolant pressure that sent us earthward early. The OAT wa= s 10F on this test flight; oil got a maximum of 190F and water never exceed= ed 170F. The coolant system was pre-pressurized to 16 LBs and pretty much s= tayed there. We circled the field on the upwind side for about 20 minutes d= oing figure-8s. The oil was cycling between 180F and 190F; the water was pe= gged at 160F. We decided to temperature-cycle the engine a few times to see= what happened, so we did 2 touch and goes. Everything was good ... water w= ould cool to about 130F and oil to about 160F on approach, as we climbed ou= t the temperatures returned to W:160F and O:190F ... I will make a few more= refinements to the oil cooler inlet diffusers as 190F is still a bit high. On another note I got in the left set finally for some taxi training ... no= t too good ... my big feet and the configuration of rudders/toe-brakes made= it almost impossible to stay off the brakes when applying rudder ... I'm g= oing to weld a tube at the rudder/brake lower pivot-point to ensure that fi= rst contact is with rudder and some effort will be required to activate the= brakes. Jeff (happy, happy) --_000_C03ABB0A7362B84BB53D544B3C305E0ED14653A162EXVMBX0035exc_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

On Saturday we made the first “successful”= test flight of the rotary engine installation. Previous flights had too high wat= er temps and/or too high oil temps and a low coolant pressure that sent us earthward early. The OAT was 10F on this test flight; oil got a maximum of = 190F and water never exceeded 170F. The coolant system was pre-pressurized to 16= LBs and pretty much stayed there. We circled the field on the upwind side for a= bout 20 minutes doing figure-8s. The oil was cycling between 180F and 190F; the water was pegged at 160F. We decided to temperature-cycle the engine a few times to see what happened, so we did 2 touch and goes. Everything was good= … water would cool to about 130F and oil to about 160F on approach, as we cli= mbed out the temperatures returned to W:160F and O:190F … I will make a fe= w more refinements to the oil cooler inlet diffusers as 190F is still a bit h= igh.

 

On another note I got in the left set finally for some= taxi training … not too good … my big feet and the configuration of rudders/toe-brakes made it almost impossible to stay off the brakes when applying rudder … I’m going to weld a tube at the rudder/brake = lower pivot-point to ensure that first contact is with rudder and some effort wil= l be required to activate the brakes.

Jeff

(happy, happy)

--_000_C03ABB0A7362B84BB53D544B3C305E0ED14653A162EXVMBX0035exc_--