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From: Miloch <Miloch_member@newsguy.com>
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Subject: Hamilton H-47
Date: 16 Jul 2016 07:59:00 -0700
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https://en.wikipedia.org/wiki/Hamilton_H-47
The Hamilton H-45 and H-47 were six-passenger-seat, all-metal, high-wing
monoplanes powered by single Pratt & Whitney radial engines. They were built for
passenger and mail-carrying work in the US in the late 1920s.
H-45 and H-47
MOVIE ROLES: It was a featured aircraft in Howard Hawk's 1939 "Only Angels Have
Wings" flying mail for "Barranca". The flying scenes were fake; however, the
aircraft was used in ground scenes. The movie prop model (or one of them)
survives.
The sole surviving Hamilton H-47 in Northwest Airways markings exhibited at EAA
Oshkosh Wisconsin in 2010
Role Civil passenger and mail carrier
National origin United States
Manufacturer Hamilton Metalplane Company
Designer James McDonnell[1]
First flight 1928
Number built 46
The Hamilton Metalplane Company, which merged with Boeing in 1926, built some of
the earliest all-metal US aircraft. The H-45 and the H-47, which differed
chiefly in having a more powerful engine, were part of that series
Both the H-45 and the H-47 were powered by a single, uncowled, Pratt & Whitney
9-cylinder radial: the H-45 had a 450 hp (335 kW) Wasp and the H-47 a 525 hp
(390 kW) Hornet. The Hornet gave a 10 mph (16 km/h) increase in cruising speed
and a slight (3%) increase in useful load to 2300 lb (1043 kg)
One H-47 (originally built as an H-45) was impressed by the United States Army
as a UC-89 in 1942.[7] It was found unsuitable for Army work and was struck off
charge in August 1943.[8]
Specifications (H-47)
General characteristics
Crew: two
Capacity: six passengers
Length: 34 ft 2 in (10.41 m)
Wingspan: 54 ft 5 in (16.59 m)
Height: 9 ft 4 in (2.84 m)
Wing area: 390 sq ft (36 m2)
Empty weight: 3,699 lb (1,678 kg)
Gross weight: 5,750 lb (2,608 kg)
Fuel capacity: 140 US gal (120 imp gal; 530 L)
525 hp (391 kW)
Performance
Maximum speed: 145 mph (233 km/h; 126 kn)
Cruise speed: 125 mph (109 kn; 201 km/h)
Stall speed: 55 mph (48 kn; 89 km/h)
Range: 600 mi (521 nmi; 966 km)
Service ceiling: 15,000 ft (4,572 m)
Rate of climb: 900 ft/min (4.6 m/s)
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