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Compare Curti Zefhir vs Robinson Helicopters R22 Beta II vs Robinson Helicopters R44 Raven I vs Robinson Helicopters R44 Raven II vs Robinson Helicopters R66
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Manufacturer
Curti
Robinson Helicopters
Robinson Helicopters
Robinson Helicopters
Robinson Helicopters
Aircraft Type
Zefhir
R22 Beta II
R44 Raven I
R44 Raven II
R66
Base Aircraft Price (USD)
$58,823
$ 312,000
$ 412,000
$ 490,000
$ 920,000
Direct Operating Cost
-
$ 173
$ 248
$ 257
$ 384
DOC / nm
-
$ 1.80
$ 2.30
$ 2.36
$ 3.49
DOC / nm / Seat
-
$ 0.90
$ 0.57
$ 0.59
$ 0.70
Max Cruise Speed (ktas)
-
96
108
109
110
Max Range (nm)
319
250
300
300
350
Useful Load (lbs)
-
490
950
995
1355
Total Seats
2
2
4
4
5
Cockpit
-
-
-
-
2
Standard Cabin Seats
-
-
-
-
3
Min Crew
-
-
-
-
1
Flight Deck (Base Spec)
-
Gyro / Analog
Gyro / Analog
Gyro / Analog
Gyro / Analog
Flight Rules
-
VFR
VFR
VFR
VFR
Certification
-
FAA / EASA
FAA / EASA
FAA / EASA
FAA / EASA
OEM Verification
-
Un-Verified
Un-Verified
Un-Verified
Un-Verified
Weights
MTOW (lbs)
-
1370
2400
2500
2700
BEW (lbs)
-
880
1450
1505
1345
Useful Load (lbs)
-
490
950
995
1355
Fuel Capacity (lbs)
-
157
279
279
493
Useful Load Max Fuel (lbs)
-
333
671
716
862
Max Baggage Weight (lbs)
699
-
-
-
-
Dimensions
Rotor Diameter (ft)
-
25.2
33
33
33
Overall Height (ft)
-
8.8
10.8
10.8
11.4
Length (ft)
-
28.5
38.3
38.3
38.3
Cabin Volume (cu. ft)
-
-
-
-
50
Baggage Volume Int. (cu. ft)
-
1.5
2.5
2.5
-
Baggage Volume Ext. (cu. ft)
-
-
-
-
18
Engine
No. of Engines
-
1
1
1
1
Manufacturer
Curti
Robinson Helicopters
Robinson Helicopters
Robinson Helicopters
Robinson Helicopters
Model
-
O-360
O-540
IO-540
RR300
Horsepower
-
131
225
245
300
FADEC
-
No
No
No
No
TBO (hrs)
-
2000
2200
2200
2000
TBO (yrs)
-
12
12
12
-
Fuel Type
-
AvGas
AvGas
AvGas
JetFuel
Fuel Delivery
-
Carbureted
Carbureted
Fuel Injected
-
Fuel Capacity (gal)
-
115
29.5
29.5
73.6
Avionics
Flight Deck
-
Gyro / Analog
Gyro / Analog
Gyro / Analog
Gyro / Analog
Flight Rules
-
VFR
VFR
VFR
VFR
Transponder
-
1
1
1
1
VHF Com
-
1
1
1
1
VHF NAV
-
-
-
-
1
Cabin
Total Seats
2
2
4
4
5
Cockpit
-
-
-
-
2
Standard Cabin Seats
-
-
-
-
3
Min Crew
-
-
-
-
1
Other
Gear Type
-
Skids
Skids
Skids
Low Skids
Rotorhead
-
2-Blade Teetoring
2-Blade Teetoring
2-Blade Teetoring
2-Blade Teetoring
Tail Rotor
-
2-Blade
2-Blade
2-Blade
2-Blade
Performance
Max Cruise Speed (Mach)
185
-
-
-
-
Max Cruise Speed (ktas)
-
96
108
109
110
Long Range Cruise (ktas)
-
83
100
100
110
Max Speed (Vne)
-
102
130
130
130
Max Range (nm)
319
250
300
300
350
Range Seats Full (nm)
-
206
258
257
341
Max Climb Rate (fpm)
-
1000
1000
1000
1000
Service Ceiling (ft)
-
14000
14000
14000
14000
Hover IGE (ft)
-
9400
6400
8950
10000
Hover OGE (ft)
-
-
-
-
10000
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