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Designed during the 70s to replace the Mi-24 Hind as the main attack
helicopter of the Red Army , the Mi-28 can fly at a maximum speed of
300 km/h, can fly rearwards and sideways at speeds up to 100 km/h and
is able to hover turn at 45 degrees per second.
In August 1996 Mil rolled out a prototype of the day and night capable
version, the Mi-28N Night Havoc
The
helicopter design is based on the conventional pod and boom
configuration with a tail rotor. The pilot and the navigator/systems
officer are accommodated in two separate cockpits in tandem
configuration under individual canopies. The fuselage of the Mi-28 has
a bay fitted with a hatch door. The helicopter has non-retractable
tricycle tailwheel type landing gear.
The energy absorbing landing gear and seats protect the crew in a crash
landing or in a low-altitude vertical fall. The crew are able to
survive a vertical fall up to 12 metres per second.
The
Mi-28A helicopter is powered by two TV3-117VMA turboshaft engines,
fitted on either side of the fuselage. It is equipped with an auxiliary
power unit for self- contained operation. The thermal signature of the
helicopter has been reduced by a factor of 2.5x compared to its
predecessor, the Mi-24.
The main rotor head of the Mi-28 has elastomeric bearings and the main
rotor blades are made from composite materials. The tail rotor is
designed on a biplane configuration with independently controlled
X-shaped blades. The turnable stabilizer is fitted asymmetrically on
the end of a tailboom. In real combat missions the single rotor design
allows the helicopter to continue flight and land with damaged main
rotor blades or damaged anti-torque blades in the majority of cases. A
new design of rotor blade, all plastic with swept shaped tips has been
installed on the Night Havoc Mi-28N helicopter. The new blades can
sustain hits from 30 mm shells.
The crew have two
compartments separated with armoured partitioning, the pilot seated in
the higher rear compartment and the navigator/systems officer in the
front compartment.. The Mi-28 has a fully armoured cabin including the
windshield which withstands impact by 7.62 and 12.7 mm bullets and 20
mm shell fragments.
Cruise Speed: 260 km/h
Max Speed: 324 km/h
Hovering ceiling: 3450 m
Service ceiling: 5750 m
Ferry range: 1105 km
Weight Empty : 7890 kg
Max Weight : 11500 kg
Rotor Span: 17,2 m
Length: 21 m
Height: 3,8 m |
