HAV 304 (21 Days Continuous Flight)
Title of the picture
Long Endurance Multi-Intelligence Vehicle (LEMV). A specific function surveillance hybrid air vehicle. The vehicles derive their flight capability from a mix of aerodynamic lift and Helium buoyancy.
Laminated fabric construction hull with
internal catenary system supporting the
payload module. The hull’s aerodynamic
shape, an elliptical cross-section allied to
a cambered longitudinal shape, provides
up to 40% of the vehicle’s lift. The internal
diaphragms required to support this
shape allow for a limited amount of
compartmentalisation further enhancing
the fail-safe nature of the vehicle. Multiple ballonets located fore and aft in each of
the hulls provide pressure control.
Profiled pneumatic tubes on the underside of the two outer hulls provide an amphibious capability.
Tubes are ‘sucked-in’ for a clean-in-flight
profile. System shares use of ballonet fans with hull pressure system.
4 x 350 hp 4 litre V8 direct injection, diesel
engines. Supercharged induction system. Two
engines mounted forward on the hull and two on the stern of the hull for cruise operation.
All four are configured in ducts with blown
vanes to allow vectored thrust for take off/landing/ground handling operation.
Located on centerline; comprises 3 primary areas as follows:
- 1 pilot station.
- Single pilot control.
- Large transparencies for
excellent all-round visibility.
- Payload compartment.
Optionally Manned,Remotely piloted,Autonomous
20,000 ft for 21 days
Envelope Volume: 38,000 m³ (1,340,000 ft³)
- Length: 91 m (300 ft)
- Width: 34 m (113 ft)
- Height: 26 m (85 ft)
Speed: Cruise 80 KTAS
Loiter: 20 KTAS