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Paul,
That is a good point, and something that I had not considered before. Putting the thermostat back in, wouldn't be an easy task. I removed the plastic / fiber, whatever it is made of portion where the thermostat resided, and used a 1/4" aluminum plate in it's place. That plate has an AN16 fitting welded to it, and also has two 1/4 NPT holes in it to hold sensors.
They probably make an in-line thermostat I assume, so that would probably be an option.
Steve Brooks
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of fpbjr2001@yahoo.com
Sent: Saturday, August 09, 2008 7:40 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: 2nd flight on the new cooling system
steve
sounds great. something to think about. if get to a point where you think you have enough cooling a 170-180 degree thermostat would be nice to stabilize the system. as you know i have run a thermostat since day one.
paul brannon
--- On Sat, 8/9/08, Steve Brooks <cozy4pilot@gmail.com> wrote:
> From: Steve Brooks <cozy4pilot@gmail.com>
> Subject: [FlyRotary] 2nd flight on the new cooling system
> To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
> Date: Saturday, August 9, 2008, 1:58 PM
> I took the Cozy up this morning for the 2nd flight on the
> new cooling
> system. The OAT was 3 or 4 degrees warmer than the first
> flight, as it was
> 79 F when I took off.
> This time, I turned the cooling fan on while I was taxiing
> out to the
> runway. After the taxi and pre-flight checks, the oil was
> 135 F and the
> coolant was still reading pretty low. Maybe 115 to 120 or
> so. It is a
> little hard to read the analog gauge down on the low end of
> the scale.
>
> I took off and climbed up to about 1300 FT AGL, at which
> time I pulled the
> throttle back some and continued a cruise climb. The
> coolant was showing
> about 190F, and I didn't think to check the oil
> temperature. Oil
> temperature has not been my issue. It has always been the
> coolant. The
> coolant temperature did still increase a little, even at
> the reduced power,
> but just up to 200 F. I was close to a low cloud layer at
> about 1800 AGL,
> so I throttle back some more and dropped the nose to level
> flight. I also
> turned off the cooling fan to see what the temperature
> would do on it's own.
> The temperature steadily dropped to about 180 degrees
> within just a few
> minutes, and then stabilized there.
>
> I cruised around for a little while, flew over my house and
> circled it once,
> and then headed back to the airport. With the low cloud
> layer that had
> moved in, I really didn't know if it was going to clear
> out or get thicker,
> so I flew the 5 minutes back to the airport, and made a
> normal landing. As
> I was ready to throttle back to descend about 800 feet to
> pattern altitude,
> and quick check of the coolant temperature showed about 160
> degrees. Not
> bad at all, although I was probably flying at about 60%
> power. Still, it
> would have not been nearly that low before the new cooling
> system.
>
> Once I landed and was clearing the runway, I checked the
> temperatures again,
> and the coolant was less then 140 degrees after the glide
> in to land. Since
> I planned to wash the plane, and sometimes it starts hard
> after getting heat
> soaked sitting after a run, I turned on the cooling fan
> while a taxied over
> to the where the wash area is. After washing the plane, it
> started up
> pretty easily, so I guess that worked out also.
>
> So far so good. I like what I see so far on the radiator,
> and the cooling
> fan definitely gives me a lot more options.
>
> Steve Brooks
> Cozy N75CZ
> 13B turbo to read the an
--
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