Barkley-Grow T8P-1
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| T8P-1 | |
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 CF-BLV while under resotration at the Alberta Aviation Museum, Edmonton, Alberta c. 2000 |
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| Type | Airliner |
| Manufacturer | Barkley-Grow |
| Designed by | Archibald Barkley |
| Maiden flight | April 1937 |
| Number built | 11 |
The Barkley-Grow T8P-1 was an airliner developed in the United States shortly before the Second World War. Although it saw limited production, the type was well-received as a bush plane in Canada.
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[edit] Design and development
Typical for the era, the Barkley-Grow T8P-1 was a low-wing monoplane of all-metal construction with a twin tail (some models had an additional third tail, a la Lockheed Constellation). One slight anachronism was that the main units of the tailwheel undercarriage were not retractable, and this may have negatively impacted the type's reception in the marketplace. A novel design feature, however, was the wing structure. Barkley used a multi-spar approach, dispensing with the usual ribs or bulkheads. Like its two main competitors, the Lockheed Model 12 Electra Junior and the Beech 18, the T8P-1 was originally designed to a 1935 Bureau of Air Commerce specification (eventually won by the Lockheed entry).
[edit] Operational history
Sales in the US were disappointing, and most machines were sold to Canada, where the fixed undercarriage was no obstacle to the fitting of skis or pontoons. Three examples are preserved at the Aero Space Museum, Calgary, Reynolds-Alberta Museum, Wetaskiwin, and at the Alberta Aviation Museum, Edmonton.
[edit] Specifications
General characteristics
- Crew: two pilots
- Capacity: 6 passengers or 1,397 (634 kg) of cargo
- Length: 36 ft 2 in (11.02 m)
- Wingspan: 50 ft 8 in (15.44 m)
- Height: 9 ft 8 in (2.95 m)
- Wing area: 354 ft² (32.9 m²)
- Empty weight: 5,750 lb (2,608 kg)
- Gross weight: 8,250 lb (3,742 kg)
- Powerplant: 2 × Pratt & Whitney Wasp Junior SB radial engines, 450 hp (336 kW) each
Performance
- Maximum speed: 224 mph (360 km/h)
- Range: 470 miles (756 km)
- Service ceiling: 27,000 ft (8,230 m)
- Rate of climb: 1,420 ft/min (7.2 m/s)
[edit] References
- Gerritmas, Joop and Harm, Hazewinkel. "The Barkley-Grow T8P-1." AAHS Journal 50 (4), 2005.
- Taylor, J.H. Jane's Encyclopedia of Aviation. London: Studio Editions, 1989, p. 121. ISBN 0-51710-316-8.
- World Aircraft Information Files (File 890 Sheet 02). London: Bright Star Publishing.
[edit] External links
[edit] See also
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