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)=20 -------------------------------------------------------------------------= --- >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0072_01C48967.FF436460 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message

Kevin, I think it was based on the fact = that=20 aluminum will generally fail sooner than steel if it is flex or loaded = and=20 unloaded repeatedly in the same manner

However, its questionable how much = flexing a=20 stationary fitting does. I understand that you will find aluminum = fittings=20 on the newer Lycomings.

The alloys have improved = considerably. I mean=20 they make structural landing gear parts out of aluminum on the big = airplanes and=20 those parts do take a hell of a beating. So could be more of an = old wives=20 tail than fact. Just my opinion of course.

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC

----- Original Message -----
From:=20 kevin = lane=20
To: Rotary motors in = aircraft

Sent: Monday, August 23, 2004 = 10:08=20 PM

Subject: [FlyRotary] Re: Sorry = Rusty - no=20 bind

please don't take this as = being=20 critical, I'm just asking - is it true or not that engine fittings = should be=20 steel, not aluminum? or is that just a myth? does aluminum = fatigue=20 faster than steel? what do certified piston planes = use?

Kevin Lane Portland, OR
e-mail-> n3773@comcast.net
web-> http://home.comcast.net/~n3773
(browse=20 w/ internet explorer)

----- Original Message -----
From:=20 Russell=20 Duffy
To: Rotary motors in = aircraft=20

Sent: Monday, August 23, 2004 = 5:53=20 PM

Subject: [FlyRotary] Re: = Sorry Rusty -=20 no bind

Sorry to disappoint you, Rusty = (actually, not=20 sorry at all {:>)).

Neither=20 am I. Actually, I wish you'd hurry up and get that dang thing=20 running. I could've sworn you were retired...=20 :-)

I am sure I am to plug the center = hole of (the=20 rear drain hole of the 2.17). But, to make certain I have sent = Tracy=20 and e mail to confirm it. Better than finding out in the air I = was=20 wrong {:>)

I believe=20 you're right, and you might not get an answer from him since he's on = vacation. I'll attach a few pics, for your = amusement. =20 One shows the bottom of both drives. The drain holes on = the C=20 drive are of course behind the tape.  The other two = pics show=20 the B, and C drives for comparison.

Cheers,

Rusty=20 (sometime before I retire Ed <g>)

>> Homepage: =20 http://www.flyrotary.com/
>> Archive:  =20 = http://lancaironline.net/lists/flyrotary/List.html

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