Jovair: 4E Sedan

General data

Producer info

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Names and dates
Market original model designation
4E
Market model designation (english translation or spelling)
4E
Original model name
Sedan
Model name (english translation or spelling)
Sedan
Country of manufacture
USA
People involved
Dragoljub JovanovichDesign engineer
Config info
Rotorcraft typeHelicopter
Config
Tandem rotors
Weights
Maximum Takeoff Weight (MTOW)
1043
kg
(...)
1089
kg
Manufacturers empty weight (MEW)
664
kg
Cabin and cockpit
Maximum number of people onboard
4
External dimensions
Fuselage length
5.49
m
Fuselage width
1.30
m
Fuselage height
1.63
m
Landing gear type
Wheeled
Landing gear support points
3
Landing gear track
2.00
m
Wheelbase
2.13
m
Main rotor
Main rotor diameter
7.01
m
Minimum main rotor angular speed
442
rpm
Maximum main rotor angular speed
508
rpm
Distance between main rotor hubs
4.88
m
Number of blades
3
Powerplant
Engine model
Aircooled Motors Corp. 6A-335
(...)
Franklin 6A-350
Engine model (english translation or spelling)
Aircooled Motors Corp. 6A-335
Engine type
Piston
Number of engines
1
Total maximum power
210
HP
(...)
235
HP
Angular speed at max power
3100
rpm
Performance
Cruise speed (Vc)
145
km/h
(...)
129
km/h
Maximum service ceiling
2438
m
Maximum range
402
km
Maximum flight endurance
2
h
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