ASA EZ Cool Flap Data Point

[Brantel]

Originally Posted by crabandy

Brantle,
Curious if you know the sevo?s recommended operating temp specs on the EZ-Cool flap? Also how many hours and if any servo failures?
Thanks,
Andy

Way back when these were released, someone found the OEM specs on the servos and the recommended operating temp was fairly low for the environment that they are to be used in. That being said, when I first installed mine I wrapped them in reflective aluminum tape and have had no failures of the servo to date. I installed them 5 years and several hundred hours ago.

The only failure I have had is the hinge. Allan sent me new units with a reinforced aluminum hinge. I wish I had the units with the new stainless hinge.

[PerfTech]

Originally Posted by Brantel

Way back when these were released, someone found the OEM specs on the servos and the recommended operating temp was fairly low for the environment that they are to be used in. That being said, when I first installed mine I wrapped them in reflective aluminum tape and have had no failures of the servo to date. I installed them 5 years and several hundred hours ago.

The only failure I have had is the hinge. Allan sent me new units with a reinforced aluminum hinge. I wish I had the units with the new stainless hinge.

?. The rated temperature was lower than I would have liked and as time passed
I became more concerned that we would begin to see failures related to temperature.
When our volume became such that we could justify buying direct we contacted
the manufacturer China and purchased direct. I quizzed them about my temperature
concerns and they said the most sensitive thing was a glue they use in the assembly.
They said far a sleight increase in price they can use a higher temp glue. We
agreed and they switched over long ago on our orders. In all fairness we never
experienced any failures with the other glue, so perhaps my efforts were a waste
of time. Thanks, Allan...

[Barbeau]

Hi Allan
I?m a friend of Sylvain and I fly a RV6A, O360 with Lasar ignition and 3 blades CS MT propeller.
I?m working on sub cowl based on Larry Wetterman tests.
The main objectives are reducing cooling system drag at high cruise speed and reducing CHT when climbing.
Do you know anybody who did such sub cowl with one EzCool flap or lover on it AND EzCool flap under main sub coal Or to you have any experience on such fitting.

[PerfTech]

Originally Posted by Barbeau

Hi Allan
I?m a friend of Sylvain and I fly a RV6A, O360 with Lasar ignition and 3 blades CS MT propeller.
I?m working on sub cowl based on Larry Wetterman tests.
The main objectives are reducing cooling system drag at high cruise speed and reducing CHT when climbing.
Do you know anybody who did such sub cowl with one EzCool flap or lover on it AND EzCool flap under main sub coal Or to you have any experience on such fitting.

?. Sorry but I have very little experience with that system or mods. The absolute
guru when it comes to this subject would most assuredly be Dan Horton.
I can't think of anyone that has done more or better testing than Dan. Do a
search for his threads on exit air Etc. They are excellent and very informative. Thanks, Allan..

[Barbeau]

Thanks a lot Allan, I?m going to look for more details through VAF forum.
Your Ezcool flat should meet my project needs.

[crabandy]

Originally Posted by Brantel

Way back when these were released, someone found the OEM specs on the servos and the recommended operating temp was fairly low for the environment that they are to be used in. That being said, when I first installed mine I wrapped them in reflective aluminum tape and have had no failures of the servo to date. I installed them 5 years and several hundred hours ago.

The only failure I have had is the hinge. Allan sent me new units with a reinforced aluminum hinge. I wish I had the units with the new stainless hinge.

Thanks for the Pirep!