RCU Forums - .074 performance loss during violent spin (2)

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- - .074 performance loss during violent spin (2) (https://www.rcuniverse.com/forum/1-2-1-8-airplanes-70/2364538-074-performance-loss-during-violent-spin-2-a.html)

HO-229

11-21-2004 08:13 PM

.074 performance loss during violent spin (2)

What affect will installing a check valve on the fuel supply line to a .074 Norvel have?
Is there a performance loss/gain with this design architecture?

From what I gather, putting a check valve on the pressure tap (muffler) has a negative affect on engine performance

rrragmanliam

11-21-2004 08:23 PM

RE: .074 performance loss during violent spin (2)

Don't know. You should try it, I never have. Off the top of my head I dont think it would hurt anything. I've never really had a need for one with any 1/2 A plane. It may help your engine/spin problem if fuel delivery is the culprit.

Darren

combatpigg

11-21-2004 09:41 PM

RE: .074 performance loss during violent spin (2)

Not even in a parallel universe would I put a check valve on the SUPPLY line!?!

MikeSell

11-21-2004 11:47 PM

RE: .074 performance loss during violent spin (2)

A check valve in the pressure line can increase the tank pressure 2x and make it more consistant. You have to remove it to fuel the tank or the captured pressure will not allow you to fill the tank. Better than muffler pressure alone, not as good as a pump.

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