Hi folks,
May I know where can I get contest / sport rubber bands in Bangalore/india?
Mahesh

http://www.rcbazaar.com/product.aspx?productid=1156

@si74,
These are wing mounting bands or rubber motors?

@ Iyer sir, these bands are not that strong; so I think it is motor. And 8" long.

I tried the rubber bands from rcbazaar. the 2mm ones broke before 200 turns and the 4mm ones are too thick to go beyond 150 or 175 turns.
Or am I doing something wrong?
Lubricated the bands in castor oil before use.

Try tying two bands together before winding to 250.

^^. You mean parallel (to make it thicker) or linearly in a rubber band loop?
The latter has to have a longer fuselage and a bigger nose drop so that the centre of the rubber band (where the knot is) does not scratch with the wood fuselage causing friction. Have tried that before as well.

Yes,linear. But I added one usual semitransparent rubber band as well to boost power.

I used 48 cm balsa wood fuselage ; Tourniquet split to 2mm thickness 50 cm long mixed with usual 4" rubber bands 6 nos  ; and I could go easily upto 600 turns ( stretched it while winding still attached to prop) and gives decent flight time. Wings 60 cm span ( styroform plate) ; attached to fuselage using light weight packing foam