Grumman built the Mallard from 1947 to 1951. Fifty-nine of the 10-place, twin-engine amphibians were built. Two 600 hp Pratt & Whitney radial engines power the aircraft. Prior to purchase, as with all amphibious aircraft and seaplanes, a thorough corrosion inspection needs to be performed. The Mallard is part of Grumman’s famous family of amphibious airplanes that also include the Albatross, Widgeon, and Goose.
- Menu
- Summary
- Cost
- Performance
- Weight/Payload
- Range
- Interior
- Exterior
- Equipment
Summary
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Grumman G73 Mallard
- Range:
- 635 nm
- Speed:
- 187 kts
- Passengers:
- 10 people
Cost
- Estimated Purchase Price:
- $1,000,000
- Annual Cost:
- $427,884
- Variable Cost:
- $1,038/hr
- Fixed Cost:
- $150,792
Specifications
- Max Payload:
- 3,400 lb
- Engines:
- Pratt & Whitney P&W S3H1 Radial 2
- Total Cabin Volume:
- —
- Avionics:
- —
- Wingspan:
- 66.67 ft
- APU:
- —
Production Information
- Production:
- 1946 - 1951
- IFR Certified:
- Yes
- Produced / In Service:
- —
- Regulatory Certification:
- —
- Serial Numbers:
- —
- Certification Basis:
- —
- Meets Stage 3 Noise Levels:
- Yes
Assumption
- ANNUAL UTILIZATION (DISTANCE):
- 45,000 nm
- FUEL PRICE (JET A):
- $237
- ANNUAL UTILIZATION (HOURS):
- 267 hrs
- LABOR COST:
- $87/hr
- AVERAGE SPEED (STANDARD TRIP):
- 168 kts
- AVERAGE LENGTH (STANDARD TRIP):
- 200 nm
Understand how these values are calculated in Report Methodology & Glossary.
Cost
Total Annual Cost With Market Depreciation
$489,884
57% - Variable Cost - $277,092
31% - Fixed Cost - $150,792
13% - Market Depreciation - $62,000
- Total Annual Cost:$427,884
- Variable Cost:$277,092
- Fixed Cost:$150,792
- Per Hour:$1,603
- Per Nautical Mile:$10
- Per Seat Per Nautical Mile:$1
- Total Annual Cost with Market Depreciation:$489,884
- Market Depreciation:$62,000
- Per Hour:$1,835
- Per Nautical Mile:$11
- Per Seat Per Nautical Mile:$1
Hourly Variable Cost
- Per flight hour:
- $1,038/hr
- Fuel:$249
- Fuel:$237
- Lubricants:$12
- Maintenance:$678
- Maintenance Labor:$310
- Parts Airframe/Engine/Avionics:$341
- Propeller Allowance:$27
- Engine Reserves:$89
- Miscellaneous Reserves:$23
- Landing/Parking:$16
- ATC Navigation:—
- Crew Expenses:—
- Supplies/Catering:$7
Annual Fixed Cost
- Annual cost:
- $150,792
- Crew:$72,500
- Captain:$58,000
- Copilot:—
- Benefits:$14,500
- Hangar:$40,000
- Insurance:$8,850
- Hull:$7,500
- Single Limit Liability:$1,350
- Aircraft Modernization:$3,100
- Training:$15,200
- Miscellaneous:$11,142
- Navigation Chart Service:$1,742
- Refurbishing:$8,700
- Computer Maintenance Program:—
- Weather Service:$700
- Other:—
Costs are forward looking estimates based on Conklin & de Decker Research. For comparison purposes only.
Understand how these values are calculated in Report Methodology & Glossary.
Performance
- Normal cruise:
- 157 kts
- Long-Range cruise:
- —
- Maximum cruise:
- 187 kts
- Rate of climb:
- 1,290 ft/min
- Max cert. altitude:
- —
- Initial cruise altitude:
- —
- Time to cruise altitude:
- —
- Service Ceiling:
- 23,000 ft
- Engine out rate of climb:
- 298 ft/min
- Engine out ceiling:
- 8,200 ft
Field Length
FAR-91
2,340 ft
FAR-135
2,925 ft
FAR-121
3,900 ft
Balanced Field Length
1,920 ft
Speeds
- VMC (Ground):
- —
- VMC (Air):
- —
- V2 (Max. Takeoff Gross Wt.):
- —
- VREF (BOW + Pax + NBAA Res.):
- —
FAR 36 Noise Levels
- Flyover:
- —
- Sideline:
- —
- Approach:
- —
Weight/Payload
Weight Breakdown
With Max Payload
With Max Fuel
With Max Payload
- Maximum payload:
- 3,400 lb
- Range at max payload:
- —
With Max Fuel
- Available payload:
- 1,120 lb
- Passenger capacity:
- 6 people
- Ramp Weight:
- 12,750 lb
- Max Gross Takeoff Weight:
- 12,750 lb
- Max Landing:
- —
- Zero Fuel:
- 12,750 lb
- Basic Operating:
- 9,350 lb
- Useful Load:
- 3,400 lb
- Usable Fuel:
- 2,280 lb
Range
Long-Range Cruise
- Range:
- —
- Average speed:
- —
- Endurance:
- —
- Passengers:
- 2 people
Maximum Cruise
- Range:
- —
- Average speed:
- —
- Endurance:
- —
- Passengers:
- 2 people
- Seats full range (30 min reserve):
- 635 nm
- Ferry range (30 min reserve):
- 1,200 nm
Interior
- Passengers:
- 10 people
- Crew:
- 1 person
- Typical Volume Per Passenger:
- —
- Total cabin volume:
- —
- Passenger area:
- —
- Misc space (galley, lav, etc.):
- —
- Cabin width:
- 5 ft
- Cabin length:
- 20 ft
- Cabin height:
- 5.8 ft
- Total baggage volume:
- —
- Internal:
- —
- External:
- —
- Door:
- —
- Width (door):
- —
- Length (door):
- —
- Pressure Differential:
- —
- Sea Level Cabin to:
- —
- Cabin Alt at Max Cert Alt:
- —
Exterior
- Wingspan:
- 66.67 ft
- Fuselage:
- 48.33 ft
- Powerplant:
- Pratt & Whitney P&W S3H1 Radial 2
Equipment
Avionics
—
- Cockpit Voice Recorder:
- —
- Flight Data Recorder:
- —
- EICAS:
- —
- Ground Warning System:
- —
- Traffic Warning System:
- —
- Maint Diag Sys:
- —
- VHF 8Khz Spacing:
- —
Auxiliary Power Unit
—
- Meets Stage 3 Noise Levels:
- Yes
- Regulatory Certification:
- —
- IFR Certified:
- Yes
- Production:
- 1946 - 1951
- Single Point Refuel:
- —
- External Lav. Service:
- —