The Bell AH-1 Cobra had a Lycoming T-53- L13 Turboshaft of 1,100 hp
The Marines use many helicopters. Their most common helicopter is probably the AH-1 W Super Cobra
YES
No, rotary engines went out of use in aircraft in WW1.
No, they need a higher power/weight ratio.
It was a .38 caliber Colt Cobra revolver.
In the opinion of users of the Apache and the SuperCobra, each of their aircraft is better -for their use. Like most weapons, all have their good points and bad points. I have no doubt that the British Army and US Army would claim their Apaches to be better attack helicopters. -However, to use an old American saying - "Tell that to the Marines" . -The US Marine Corps has long been an exponent of helicopter use and have chosen to develop Bell's Cobra into a superb Attack helicopter, the new AH-1 Z Viper. They call this the 'Zulu Cobra' and in fact it is based on Sea Cobra but has many incredible improvements including a new 4 blade rotor. For various reasons they claim the 'Zulu Cobra' to be as good or better than the Apache. - I wold strongle encourage you to look up specs of both these excellent aircraft on Google and see for yourself. - I'm going with the Marines opinion.
No, not nearly enough power.ANS 2 -The smallest helicopters use engines originally built for snow-mobiles
Modern choppers use a turbojet engine that is basically a jet engine, but instead of providing forward thrust, it spins the propeller.
No
Sikorsky's VS -300 used a 150 hp Franklin piston engine
RC remote control helicopter take AA batteries. On the average, I believe that they require about six batteries. What types of batteries is up to you.
i use the one with an engine garrunty