i have just purchased my first petrol motor a crrc pro gf26i v2. have always flown glow fuel but that is getting a bit expensive these days. so i have decided to try petrol. can anyone tell me what size tank i will need for this engine?. there is no info in the manual about tank size , any info would be great thanks.

my dad allways said you never have too much gas unless your on fire. 24 oz will give you plenty of flight time. I believe a 26 cc engine used somewhere around 1oz per minute at full throttle

I guees I would put the biggest tank I could reasonably fit

Colin
You don't need a 24 oz gas tank.... To get a nice 15 minute run get an 8 oz tank and save the pound of weight for added performance.

Cheers
Henry

8oz. will provide what Piston said and a little more. If you want to fly for 1/2 hour or more use a 12 oz.

My 25/26 cc engines burn about .75 oz /minute (similar to a .46 glow engine). A 24 oz tank will give you around 32 minutes of run time (maybe double that if you manage throttle), so you can fuel up at home and not need to carry any extra fuel to the field, since you are already carrying it in the plane.

Bet the last 1/3 of the tank permits the best flight performance.

Why carry more onboard weigh than is necessary, remember lighter flies better, plus as T.O.M alluded to, even if your tank is right on the CG the last portion of your flight time will most likely be the best.

Kkarol

i have a 450cc tank on my edge with a rcgf 20cc and i can fly 30 min. land and see about 1/4 of gas.

I have a 12 oz tank with a DLE 30. I always have landed with at least half a tank. I think I'll be downsizing to an 8 oz tank!
Sam

thanks for all the help guys, greatly appreciated!.

24 ounces on a 26cc gas engine, it will probably fly for over an hour on 1 tank.

For a 26cc I have been using those little tanks that come with the .40 size hangar 9 ARFS, I think they are a little under 11 ounces. After a full 10 min flight I still have plenty of gas left to make quite a few passes if the runway is busy or whatever.

A 26cc engine will consume about 65cc-80cc of fuel/min at wot. How long do you want to fly? Now do the math.

Go 12oz if you fly with a heavy throttle hand. 8-10oz would be fine in a scale plane like a cub where you will use less throttle.