In my link you can see thatt he motors cost about 18 usd, and the 50 Amp controller cost about 18 usd-That is almost 10 times cheaper than a scooter motor and a regulator? As i write in the beginning, i will ad water cooling, and use aircooling to my motors-And a outrunner engine can run both ways with no problem, I have also been flying rc for about 25 years-And only with brushless motors the last 5 years-And i use the motors both as pusher and tractor, and in 2 motors planes with counter rotating props. I have made a reduktion gears with chain and spocket, for a price of about 100 usd, for both motors-And remember my motors weight only 200 grams, but they are good for about 700-800 watt-Thats twice the power of a scooter motor Den fredag den 29. marts 2013 18.51.02 UTC+1 skrev Jacob:
> Brushless motors are more expensive, and their corresponding controllers > are way more expensive than brushed motors. Yes, you will get better speed, > control, and space management, but it all comes at a price. The problem > with the motors that you posted is that they are designed for RC airplanes, > and NOT for ground vehicles. They are intended to spin in only one > direction, at very high speed spinning a propeller. You could have a higher > possibility of them burning out when you put them into a sudden reverse > polarity. These ones probably wont have the TORQ needed as the windings are > designed to have a higher amount of airflow over them in an aircraft to > keep them cool. My words is DO NOT use motors that are designed for the > model aircraft industry. (I have been flying RC aircraft for over 30 years, > and I have seen the bad of them running without good airflow.) > > On Friday, March 29, 2013 3:40:41 AM UTC-6, Niels Erik Kristensen wrote: > >> Why du everyone use big heavy and week brushed motors? Most of you use >> motors that weight about 1 kilo, and only give 350-400 watt-And cost 60 usd >> ore more. >> Furtermore its dificult to buy regulators to them, so many "tankers" >> control there tanks with a system of relays? >> >> >> In my plans i will use cheap, light and powerfull brushless motors, and >> real regulators with propotional control in both forward and rewerse-With >> brake:-) >> >> The motor i will use weight about 200 grams, and give about 800 watt on >> 4S lipo battery ( 14,8 volt) And i will control the motors with a 50 A boat >> regulator-Watercooled and with a max boost to 60 Amp. The regulator give me >> full control both forward and reverse, with brake. >> >> My motor cost under 13 usd!! The regulator cost about 18 usd >> >> >> > -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
