a helicopter that lifts heavy objects
It is a military heavy cargo helicopter
7.6 tonnes
An aircrane is a helicopter with the ability to lift heavy items.
300 Pounds
It has a very extreme effect, if it is too heavy, it will not rise.
The alliteration for helicopters could be higher helicopters or heavy helicopters
For lifting heavy objects that would be awkward or hard for a regular crane to do.
The largest American helicopter is the Sikorsky CH-53E Super Stallion. It is a heavy-lift helicopter that is used primarily by the United States Marine Corps for transporting troops and equipment.
make your blades out of carbon fibre
No, tanks are too heavy to be transported by a helicopter. Some Light Armored Vehicles can be transported, but not a tank. There are a couple of commercial helicopters that have the lifting power to move a tank, but it is not military and it is lifted externally, not internally.
The US Marines needed fast, armoured helicopters capable of heavy hitting.