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From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Re: First flight - oil temp
Date: Tue, 8 Aug 2006 18:49:09 -0400
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Al, on my plane's second flight I went along also with the test =20
pilot. I told him: you just handle the throttle, stick and the =20
pedals. I'll wary about engine.
I was the necessary  crew - the flight engineer, and he was the test =20
pilot.
This way my eyes were glued to the instruments and he just flew the =20
plane. And it went fine.
Just something to think about?
Buly

On Aug 8, 2006, at 5:02 PM, Al Gietzen wrote:

>
> The fear in high oil temps is the loss of the indium overlay on the =20=

> rotor bearings. The oil also controls rotor face temps by cooling =20
> the rotors. But the oil temp on the gage is lower than the highest =20
> oil temps that appear in the oil wedge on the rotor bearings. So =20
> what is that when the gage says 230 degrees? I don't know.
>
>
> My limited understanding was/is that the fear in high oil temps was =20=

> permanent set in the side seals.  Didn=92t get the pan oil temp for =20=

> the lack of =91paging=92 of the monitor screen. The oil pressure was =20=

> about 85 psi. t sort of alloy of indium is used on the bearings?
>
>
> You can reduce oil temps by limiting throttle settings. A slight =20
> reduction can make a big difference. Also reduced ignition advance =20
> and richer mixture settings help.
>
>
> The mixture during full power climb was lean =96 O2 sensor at the =20
> bottom of the scale.  The pilot didn=92t recognize the need to tweak =20=

> the mixture knob, and the MAP was a bit higher (~1=94 hg) then I had =20=

> ever seen on static due to the dynamic pressure of the ram =20
> induction scoop.
>
>
> Al
>
>
>