Aero Spacelines Mini Guppy

Aero Spacelines Mini Guppy

The Mini Guppy is a large, wide-bodied US cargo aircraft used for aerial transport of outsized cargo components. The Mini Guppy is only one of the Guppy line of aircraft produced by Aero Spacelines, Inc..

Mini Guppy versions

Two versions of the Mini Guppy were produced. Both versions are colloquially referred to as the "Mini Guppy".

Both Mini Guppies were built from scratch using parts salvaged from surplus Boeing 377/C-97Js. This enabled Aero Spacelines to widen the Mini Guppy cargo bay floor to 13 ft (4 m), as opposed to the 8 ft (2.4 m) restriction imposed when building directly onto a B-377 fuselage. Borrowed parts included the cockpit, wings, and tail.

Mini Guppy

The Mini Guppy, or "MG", was built with a swing-tail to facilitate cargo loading. It was powered by the original Pratt & Whitney R-4360 Wasp Major piston engines, enabling it to carry a maximum load of 32,000 pounds (14,500 kg), and cruise at 250 mph (400 km/h). Its cargo bay was 18 ft (5.5 m) in diameter, and a maximum of 91 ft 6 in (27.9 m) long, with a 73 ft 2 in (22.3 m) constant section.

The Mini Guppy first flew on May 24, 1967, and Aero Spacelines operated it for several years, ferrying such contract cargo as NASA's infamous Pioneer 10 Spacecraft, until 1974 when it was sold to American Jet Industries. American Jet Industries sold it to Aero Union in 1980, who sold it to Erickson Air Crane eight years later. Erickson Air Crane used the Mini Guppy to haul heavy equipment until 1995, when it was retired to the Tillamook Air Museum in Tillamook, Oregon, where it resides today. As of 1 August 2008, visitors to the Tillamook Air Museum may tour the Mini-Guppy for an additional fee.

Mini Guppy Turbine

The second version was officially known as the Mini Guppy Turbine, or "MGT". It was the first Guppy aircraft to feature upgraded Allison 501-D22C turboprop engines. Like the MG, the MGT had a 73 ft 2 in (22.3 m) constant diameter section of the cargo hold, but the overall length had been increased to 103 ft 2 in (31.4 m), and the diameter was slightly wider: 18 ft 4 in (5.6 m). This, combined with the upgraded engines, enabled it to carry a maximum payload of 62,925 pounds (28,540 kg) -- almost twice the load the MG could handle. It was built with a swing-nose for easier cargo loading.

The MGT first took to the air on March 13, 1970, but was tragically short-lived. On May 12, 1970 the Mini Guppy Turbine was lost, along with the entire crew, in an accident during flight testing at Edwards Air Force Base, California.

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