RCU Forums - View Single Post - Fuel system plumbing and air trap consideration
Old 11-06-2009 | 07:23 AM
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olnico
 
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Default RE: Fuel system plumbing and air trap consideration

Yes Vincent, most of the setup will work on a flexible UAT if done properly ( limited restrictions, large vent ) up to 160N class engines.

However I have seen my F-84G getting 4 flameouts with a brand new P-160SX. That was only due to the BVM UAT getting vacuumed and generating cavitation.
This same UAT has been used since then with a P-60 and gives complete satisfaction.

I have extensively checked the fuel plumbing and could not see any restriction. It's only when I did a very careful test with the closed loop that I realized what was going on.
I changed the UAT with a PST air trap and never got any problem any more.
Same story with the P-180 and P-200.

This happened to me over a year ago and I have never had any problems since then with my new setups.

So to be on the safe side, I apply this rule...