With 8oz tank on my 4* and 46FX I get about 9-10minutes, with 9 oz tank as specs state(Tower web site) you should get about 10-12 minutes as this is a trainer even more that is plenty of flight time.

That front landing gear will keep bending and will not go staright, if you have easy lock put it to the steering arm and pushrod at the front. this way you don;t have remove the wing and put back if you need to fix it.

As the gear bends you will break more props and with 46fx you will run a 11" prob as 10" that I ran. I broke about 10 props while learning with second and third planes I am still using the original props.

If your field is grass, get bigger tires, It helped me a lot since 40 la was not a muscle engine.