They are all sizes from microlight single seaters to huge helicopters that lift 20 tons or more.
the big blades
Depends how big a helicopter.
A Helicopter - the number of blades is irrelevant. On a side note - what keeps a helicopter in the air? It's so ugly the earth repels it!
follow him and jump onto the helicopter
It is different with every helicopter. For example, the Blackhawk rotor is 53 ft 8 inch in diameter.
This question is very ambiguous since it depends on the model, make and type of helicopter. For instance, it depends on whether you're asking about a small, private helicopter with a bubble canopy up front, or a big military Chinook helicopter.
The smallest ones are just big enough to fit 2 people into.
The Airwolf RC is a Helicopter RC that uses a big chopper wing at the top to help lift the Airwolf RC Helicopter to let the motorized helicopter fly.
The world's largest helicopter was the Mil V-12, which had a gross weight of 105,000 kilogrammes (around 231,500 lbs.).
Big, flying, wow, weee, super,
The small rotor on the tail is to counter-act the torque of the big rotor on top. So it is used for steering and to keep the helicopter stable.
it all depends on how big the helicopter is and what brand it is, if its just a cehap one from walmart it probably wouldn't lift much