I apologize David-E for not making it clear that these are Electrics But I must say ,after all my time combating with gas I was really impressed with these Electrics , They really moved and had plenty of power. But you got me thinking about the motor and Battery setup in the Hammerhead and Jim from Hammerhead e-mailed this.

( Jim from HammerHead e-mailed me this )
Thank You for your question about The HammerHead , It has a reverse timed 400 motor with a 20p speed control set at o shutoff , So you can sneak out another minute or two during the fight - lol .The Battery is Specifically built for us by Maxamps.com and has eight cells that have a high capacity and high discharge rate for a long powerful fight. Have a Great day - Jim