Sure, I think it's #64.... Just insure you have enough, and watch for
stretching.. I use to install my bands, then hold the planes front
band holders then push up on the leading edge of the wing to see
how much pressure it took to lift it, It would be hard for me to tell
you how much pressure that would be, But it worked for me..
Also though rubber bands are cheap, and worth it if you just want
to use once... But I always used about three times(Days) then got
rid of them.. After the first outting, I would put them in a baggie with
baking soda and leave in there until I needed more..

Have fun...Be Safe.... And enjoy the insanity:-)