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Old 12-14-2017, 12:24 PM
SMRacer SMRacer is offline
Join Date: Feb 2012
Location: Leesburg, VA
Posts: 400
Default Air/Oil separator for aerobatics

I'm considering getting involved in IAC aerobatics.

My RV8 has a M20 air/oil separator. I do not intend to go to a full inverted oil system. In addition to the M20, there is also the ASA/Anti Splat separator. Bigger, more expensive systems manufactured by Raven or Christen also are available.

One of our RV pilots heavily involved in aerobatics (whose only experience was with the Raven and Christen systems) questioned whether the smaller separators could handle the volume of oil vented during aerobatics.

Are any of you using the M20 or ASA systems involved in aerobatics? Have you found them adequate?
Leesburg, VA
RV4 N444JT (sold)
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Old 12-14-2017, 01:10 PM
SMO's Avatar
SMO SMO is offline
Join Date: Oct 2007
Location: Salmon Arm, BC
Posts: 932

I used an Andair separator for a while, but was constantly getting lots of oil on the belly even though maneuvers are mostly positive. I took that off and installed a half Raven and have been happy ever since.
Mark Olson
1987 RV-4 Sold
2003 Super Decathlon - Sold
F1 EVO Rocket, first flight May 31/14
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