Maroto Botín MB-7
| Maroto Botín MB-7 | |
|---|---|
| |
| A Maroto Botín MB-7 in 1988. | |
Role
|
Passenger airliner |
National origin
|
 Creeperopolis
|
Manufacturer
|
Maroto Botín Aerospace Corporation |
First flight
|
18 September 1957 |
Introduction
|
6 March 1958 |
Status
|
In limited service |
Primary users
|
Creeperian Airlines (historical) Creeperian Air Force (historical) Sequoyah National Airways Reykanair (historical) |
Produced
|
1957–1964 |
Number built
|
355 |
Developed from
|
Maroto Botín MB-6 |
The Maroto Botín MB-7 is a Creeperian four-engine piston aircraft built by the Maroto Botín Aerospace Corporation. The MB-7 was the first aircraft built by Maroto Botín with its primary role being a civilian passenger airliner; the previously built Maroto Botín MB-5 and MB-6 were designed to be troop transporters as their primary role, meanwhile, the Maroto MA-1 never entered production.
Contents
History
The Maroto Botín MB-7 was built by the Maroto Botín Aerospace Corporation. It first flew on 18 September 1957 and entered service with Creeperian Airlines on 6 March 1958. The aircraft was meant to be the successor of the Maroto Botín MB-6. The MB-7 was the first aircraft built by Maroto Botīn with its primary role being a civilian passenger airliner; the previously built Maroto Botín MB-5 and MB-6 were designed to be troop transporters as their primary role. Additionally, while the Maroto Aircraft Company, a predecessor to Maroto Botín, built the Maroto MA-1 in the 1920s to be a passenger airliner, it never entered production as a result of the outbreak of the Creeperian Civil War in 1933.
Although the last MB-7 was built in 1964, the aircraft remains in limited service with private owners and small airlines.
Operators
Specifications
General characteristics
- Crew: 5 flight crew, 4 flight attendants
- Capacity: up to 105 Passengers + 18,440 lb (8,360 kg) cargo/baggage
- Length: 112 ft 3 in (34.21 m)
- Wingspan: 127 ft 6 in (38.86 m)
- Height: 31 ft 8 in (9.65 m)
- Wing area: 1,637 sq ft (152.1 m2)
- Empty weight: 72,763 lb (33,005 kg) * Operating weight empty: 78,890 lb (35,780 kg)
- Max takeoff weight: 143,000 lb (64,864 kg) * Maximum landing weight: 109,000 lb (49,000 kg)
- Fuel capacity: 7,824 US gal (6,515 imp gal; 29,620 l) in eight wing tanks ; Oil capacity 246 US gal (205 imp gal; 930 l)
- Powerplant: 4 × Reyes Ribelles M-MB7 18-cylinder turbo-compound air-cooled radial piston engines, 3,400 hp (2,500 kW) each for take-off at sea level
- 2,800 hp (2,100 kW) in low blower at sea level
- 2,850 hp (2,130 kW) in low blower at 4,300 ft (1,300 m)
- 1,900 hp (1,400 kW) maximum cruise in low blower at 14,800 ft (4,500 m)
- 1,800 hp (1,300 kW) maximum cruise in high blower at 24,400 ft (7,400 m)
- Propellers: 4-bladed, 14 ft 0 in (4.27 m) diameter constant-speed fully-feathering reversible propellers
Performance
- Maximum speed: 406 mph (653 km/h, 353 kn) , rated power in high blower at 22,700 ft (6,900 m)
- Cruise speed: 346 mph (557 km/h, 301 kn) recommended at 21,600 ft (6,600 m) and 110,000 lb (50,000 kg) A.U.W.
- Stall speed: 97 mph (156 km/h, 84 kn) at landing weight
- Range: 5,635 mi (9,069 km, 4,897 nmi) , max fuel, 15,310 lb (6,940 kg) payload at 274 mph (238 kn; 441 km/h) at 15,000 ft (4,600 m) with no allowances
- 4,635 mi (7,459 km; 4,028 nmi), max payload with no allowances
- Service ceiling: 21,700 ft (6,600 m) at max A.U.W.
- 14,600 ft (4,500 m) on three engines at max A.U.W.
- Rate of climb: 240 ft/min (1.2 m/s) at 20,000 ft (6,100 m) at max A.U.W.
- Take-off field length: 6,360 ft (1,940 m) at max A.U.W.
- Landing run from 50 ft (15 m): 5,100 ft (1,600 m)
