de Havilland DH.114 Heron
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Re: de Havilland DH.114 Heron
Other ST-27s served as regional airliners in Ontario and elsewhere but few air carriers were exploiting this route system at the time.
The notable exception was Air Atonabee operating scheduled passenger service from the Island Airport (Toronto), using ST-27 aircraft beginning in 1974; by 1984, it was carrying 25,000 passengers annually.
The notable exception was Air Atonabee operating scheduled passenger service from the Island Airport (Toronto), using ST-27 aircraft beginning in 1974; by 1984, it was carrying 25,000 passengers annually.
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Re: de Havilland DH.114 Heron
The first ST-28 was manufactured at the Gimli, Manitoba factory using new jigs and tooling supplied by [Vous devez être inscrit et connecté pour voir ce lien] Aviation.
Although superficially similar to the earlier ST-27, the new aircraft benefited from the experiences flying the earlier airliner in regular service.
Larger cabin windows, an increased rudder size, four-bladed propellers and a host of other enhancements were incorporated in the ST-28, including a 1,000 lb (450 kg) increase in Maximum take off weight (MTOW) and extra fuel
capacity
The first flight of the prototype, C-FYBM-X took place on 18 July 1974.
Although superficially similar to the earlier ST-27, the new aircraft benefited from the experiences flying the earlier airliner in regular service.
Larger cabin windows, an increased rudder size, four-bladed propellers and a host of other enhancements were incorporated in the ST-28, including a 1,000 lb (450 kg) increase in Maximum take off weight (MTOW) and extra fuel
capacity
The first flight of the prototype, C-FYBM-X took place on 18 July 1974.
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Re: de Havilland DH.114 Heron
While testing was taking place towards an American certification, the Saunders company had plans for series production but no firm orders and a tremendous drain on available funding.
The precarious financial situation eventually led to a review by the Manitoba government and the withdrawal of funding in 1976.
The precarious financial situation eventually led to a review by the Manitoba government and the withdrawal of funding in 1976.
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Re: de Havilland DH.114 Heron
The company was forced to windup operations and sold all assets and rights to Air Otonobee, one of the primary operators of the earlier ST-27.
By the early 1980s, the sturdy airliners began to fade from service with the last ST-27 being retired during this period.
By the early 1980s, the sturdy airliners began to fade from service with the last ST-27 being retired during this period.
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Re: de Havilland DH.114 Heron
Aftermath
C-GCML (cn 009) was converted from DH Heron c/no. 14095 in 1974 and is now on display at the Canadian Bushplane Heritage Centre, Sault Ste Marie, Ontario, Canada.
The ST-28 prototype is still found at Gimli in a derelict and abandoned condition in a reclamation yard owned by the [Vous devez être inscrit et connecté pour voir ce lien].
C-GCML (cn 009) was converted from DH Heron c/no. 14095 in 1974 and is now on display at the Canadian Bushplane Heritage Centre, Sault Ste Marie, Ontario, Canada.
The ST-28 prototype is still found at Gimli in a derelict and abandoned condition in a reclamation yard owned by the [Vous devez être inscrit et connecté pour voir ce lien].
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Re: de Havilland DH.114 Heron
Specifications for Saunders ST-27
General characteristics
General characteristics
- Crew: 2
- Capacity: 23
- Length: 55 ft 10 in (17.03 m)
- [Vous devez être inscrit et connecté pour voir ce lien]: 71 ft 6 in (21.79 m)
- Height: 15 ft 7 in (4.75 m)
- Wing area: 499 sq. ft (46.36 m²)
- Empty weight: 8,824 lb (4,002 kg)
- [Vous devez être inscrit et connecté pour voir ce lien]: 14,500 lb (6,577 kg)
- Powerplant: 2× Pratt & Whitney PT-6A [Vous devez être inscrit et connecté pour voir ce lien]
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Re: de Havilland DH.114 Heron
References
- Gerritsma, Joop. "The Saunders ST-27: A Prop-Jet Commuter Liner by
Conversion." Canadian Aviation Historical Society – Journal, Vol. 35, No. 4, Winter 1997. - Molson, Ken M. and Taylor, Harold A. Canadian Aircraft Since 1909. Stittsville, Ontario: Canada's Wings, Inc., 1982. [Vous devez être inscrit et connecté pour voir ce lien]
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Re: de Havilland DH.114 Heron
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Variants
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Variants
- Heron 1: Four-engined light transport aircraft. Fitted with fixed landing gear.
- Heron 1B: This model had an increased take-off weight of 13,000 lb (5,897 kg).
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Re: de Havilland DH.114 Heron
Heron 2: Four-engined light transport aircraft. Fitted with retractable landing gear.
- Heron 2A: This designation was given to a single Heron 2, which was sold to a civil customer in the USA.
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Re: de Havilland DH.114 Heron
Heron 2B: This model had the same increased takeoff weight as the Heron 1B
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