This my Biplane with a Super tigre 2300 it has a 16 oz tank and uses about 13 oz in 15 min. I just buy methanol at a race car shop for about $3/ gal. and mix in 10% castor. It has very realistic performance compared to some thing like 180 hp Pitts. With hundreds of flights maybe 3 engine outs. With full throttle top speed in level flight pull up to vertical it looks to me like it runs out at about 300' of climb.
http://www.rcuniverse.com/gallery/ga...6memid%3D79943