With the needle set somewhat rich, how much fuel will a ST G51 consume in 7 minutes?  The last time I had one of these on a plane, the nose was too short for more than about 4.5oz and that wasn't enough to complete more than about 2/3rds of the pattern.   Suggestions?

Listen to Busby.  I use a 6 oz. tank,and I always used about 5 to 5 1/2 oz. in my USA-1 of 5% nitro fuel.  With 10% nitro is was usually 5 1/2 or a touch more.  This was with whatever size venturi Tom Lay put in it.  This was a "new" G-51 not the old big case one like the V-60.

 Of course, I don't like to fly very many laps after the pattern is done. 

I'm going to be running one of the newer Chinese/Italian hybrids on a Tutor II.  I noticed the newer venturi isn't as nicely finished as the older Italian version, but I haven't measured them to see if there's a size difference. 

The nose on the Tutor II isn't very long so that limits tank choice.  I'm not a plastic clunk tank fan, so I guess that leaves me with building a tank for this application. 

Listen to Busby.  I use a 6 oz. tank,and I always used about 5 to 5 1/2 oz. in my USA-1 of 5% nitro fuel.  With 10% nitro is was usually 5 1/2 or a touch more.  This was with whatever size venturi Tom Lay put in it.  This was a "new" G-51 not the old big case one like the V-60.

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Hey Big Bear!, how large a fuel tank do you use for your Magnum 36??

Steve