Hi AussieSteve,

I see you're in Tianjin... I worked there for two years back in the 1990's. I can only imagine what the polution is like now.... In all the time I was there I only saw a blue sky once! What surprised me was the RC equipment the locals had up there... They had better gear than me!

To answer your question, the model is a 73" QQ Yak. I used it at my last pattern comp for the first time and outside loops presented this problem. My Pinnacle is currently under repair due to a landing mishap/brain fade.[&o]

I had another thought just now about using two clunks... One for the back of the tank and one for the front with a T piece joining the two lines. I'm not sure it would stop air being sucked through though. I think air from the rear clunk would pull through faster than fuel from the front clunk.. Not sure about this one. Might be a good experiment candidate.

Cheers
Jason.