RoyalBlak007:
If You Ever Wondered How They Install Those Huge Power Line Towers

newyorks:
can u throw more light on this.in weight kilo newtons whats the helicoters weight to be able raise and install that gigantic metal tower,cus i was thinking its been fixed from ground.

RoyalBlak007:



It is a specialized sky-crane helicopter. (Heavy duty helicopters)

Not the random passenger helicopter. It could also be built from the ground but it would consume more manpower because it has to be fixed "components by components"

newyorks:
i thought as much,though could be hung with power hydraulic.i would love to witness it,i like technology.

RoyalBlak007:

You are correct Sir.



Specifications (S-64E) SkyCrane Helicopter


Data from The International Directory of Civil Aircraft [24]

General characteristics

Crew: 3 (pilot, co-pilot), plus one engineer or rear-facing observer

Capacity: up to 5 total persons

Payload: 20,000 lb (9,072 kg)

Length: 70 ft 3 in (21.41 m (fuselage))

Rotor diameter: 72 ft 0 in (21.95 m)

Height: 18 ft 7 in (5.67 m)

Disc area: 4070 ft² (378.1 m²)

Empty weight: 19,234 lb (8,724 kg)

Max. takeoff weight: 42,000 lb (19,050 kg)

Powerplant: 2 × Pratt & Whitney JFTD12-4A (T73-P-1) turboshaft engines , 4,500 shp (3,555 kW) each