Vernatherm

[carlconti]

I finally installed the Vernatherm I had bought a while ago. What a difference! The engine now warms up to the green arc on the taxi. After take off it warms to about 180 degrees by the time I am at 1000 agl and stays there.

[seastar]

Yep-
makes all the difference in the world.
I installed mine two years ago.
Bill

[txcub]

Does it keep it around 180 in both winter or summer temps?

Jon
# 293 soon

Yep-
makes all the difference in the world.
I installed mine two years ago.
Bill

[Steve Y]

Does it keep it around 180 in both winter or summer temps?

Jon
# 293 soon

Winter 26F (Big Bear, CA.)= Descending @ 1,700 rpm. Oil=177F.
Climbing out at 90mph, 2,500 rpm. Oil=180F

Summer 100F ( Borego Springs, CA.)= Descending @ 1,700 rpm. Oil=178F
Climbing out at 90 mph, 2,500 rpm. Oil=185F


Cruise 8,500, 65F= level @ 2,200-2,300 rpm. 100mph. Oil=178-180F. Oil pressure Middle of the green.

Seems to work Dandy!

[txcub]

That's great. Glad I ordered it.

Jon

Winter 26F (Big Bear, CA.)= Descending @ 1,700 rpm. Oil=177F.
Climbing out at 90mph, 2,500 rpm. Oil=180F

Summer 100F ( Borego Springs, CA.)= Descending @ 1,700 rpm. Oil=178F
Climbing out at 90 mph, 2,500 rpm. Oil=185F


Cruise 8,500, 65F= level @ 2,200-2,300 rpm. 100mph. Oil=178-180F. Oil pressure Middle of the green.

Seems to work Dandy!

[carlconti]

Does it keep it around 180 in both winter or summer temps?

Jon
# 293 soon

Only just installed it, so I don't have all seasons data yet. I'm in Florida, so the results so far would have to be called summer. The other replies sure look good though.

Carl

[carlconti]

Made my first long flight after Vernatherm install-MLB to PGD and return- today. Temperature of the oil on the steam gauge held steady at 170 degrees. On the Skyview it was 182 to 185 degrees. The difference is due to probe location differences.

Carl

[TroyBranch]

All my planes needed a control for airflow through the cooler to control oil temp. Vernatherm never kept it constant for me. Same on the cub, except this cooler is way to big. Half blocked off in summer and full in winter. I plan to build an airflow control like Dan has mentioned in the Cub now too.

[Dan L]

I flew the EX with the shutter in place for about 5 hours the last few days in temperatures of about +10 to -5. And I experimented quite a bit with the shutter opened and closed at different power settings. I don't have an explanation for what I consistently observed and am putting this out here to see if anyone has an idea.

Under these conditions I consistently saw a 10-15 degree temperature RISE with the shutter in the OPEN position. Closing it so almost no air would pass through the cooler would in less than a minute show a temperature drop. Opposite of what would seem to make sense.

Any thoughts?

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[davidmorris]

Made my first flight today with my Vernatherm installed. Outside temp. was 43F. Took approx. 10 minutes to warm the oil into the green after start-up. Oil temp. climbed steadily after take-off to 178F. Only flew for about 20 minutes but the oil temp. stayed between 174 and 180. I've never seen it that hot. I flew last Sunday with the outside temp. 50F and the oil temp. never got out of the 130's. My oil pressure is running a little higher. 76 at 2050 RPMS. 77 at 2300 RPM's.

David Morris
#275