Help brushless motors

[joshidharmesh]

Dear All,

I am new to brushless motors. Kindly help what parameters to look for when deciding on brushless motors.

Thanks,

Joshi Dharmesh

[tomp999]

Hi Joshi,
I think you will get some replies if you are more specific about what you need. What size blimp do you want to drive?

===========
Never mind. I see it now in the other threads you started. 22ft long, 8ft diameter.

There was another guy, Strat-o-gy I believe, that used Actro 40-4 electric motors on his 30ft outdoor blimp.

[Greg McNair]

Joshi, you need to know how much thrust will be required to move the mass of your airship. It was suggested to me to hook a fishing scale to the nose of mine, and pull it behind a moving vehicle at given speeds to determine how much drag it presented in lbs. From there, I would know how much thrust I would need, in lbs, to overcome the drag. That being said, I still haven't calculated this on my 22' yet. Heck, I haven't even gotten around to recalculating the lift on my 11' unit! Been too busy with other things.