de Havilland DH.114 Heron
aeronewsline :: Accueil :: Histoire :: Aéronefs 1956 à 1965
Page 2 sur 5
Page 2 sur 5 • 1, 2, 3, 4, 5
Re: de Havilland DH.114 Heron
In service, the Heron was generally well-received by flight crews and passengers who appreciated the additional safety factor of the four engines.
At a time when smaller airliners were still rare in isolated and remote regions, the DH.114 was able to provide reliable and
comfortable service with seating for 17 passengers, in individual seats on either side of the aisle.
At a time when smaller airliners were still rare in isolated and remote regions, the DH.114 was able to provide reliable and
comfortable service with seating for 17 passengers, in individual seats on either side of the aisle.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
With its larger fuselage, customers could stand up and large windows were also provided.
Baggage was stored in an aft compartment with an additional smaller area in the nose.
A few peculiarities cropped up; passengers who filled the aft rows first would find that the Heron gently "sat down" on its rear skid.
Baggage was stored in an aft compartment with an additional smaller area in the nose.
A few peculiarities cropped up; passengers who filled the aft rows first would find that the Heron gently "sat down" on its rear skid.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Pilots and ground crews soon added a tail brace to prevent the aircraft from sitting awkwardly on its tail.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
A total of 15 Herons have been operated in Australia since 1952 by carriers such as Butler Air Transport (Tamworth), Connellan Airlines (Alice Springs), Southern Airlines (Melbourne), Kendall Airlines (Wagga Wagga), Heron Airlines (Sydney) and Airlines of Tasmania (Launceston).
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Performance throughout the Heron range was "leisurely", and after production ceased in 1963, several companies, most notably Riley Aircraft Corporation, offered various Heron modification "kits," mainly related to replacing the engines, which greatly enhanced takeoff and top speed capabilities.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Riley Aircraft replaced the Gipsy Queens with horizontally-opposed [Vous devez être inscrit et connecté pour voir ce lien] engines.
One airline that carried out conversions was [Vous devez être inscrit et connecté pour voir ce lien], which replaced the Gipsy Queens with [Vous devez être inscrit et connecté pour voir ce lien] IO-520 engines.
[Vous devez être inscrit et connecté pour voir ce lien] also converted its Herons, using Riley kits.
One airline that carried out conversions was [Vous devez être inscrit et connecté pour voir ce lien], which replaced the Gipsy Queens with [Vous devez être inscrit et connecté pour voir ce lien] IO-520 engines.
[Vous devez être inscrit et connecté pour voir ce lien] also converted its Herons, using Riley kits.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
When available aircraft reached the end of their service lives, the engine conversions gave the elderly airliner a new lease on life as a number of examples were converted in the 1970s and 1980s including N415SA, a Riley Heron still flying as of 2005 and a Riley Turbo Skyliner, tail number [Vous devez être inscrit et connecté pour voir ce lien] currently registered in the United States (this example appeared in the 1986 movie[Vous devez être inscrit et connecté pour voir ce lien]
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
The most radical modification of the basic Heron airframe was the [Vous devez être inscrit et connecté pour voir ce lien], that basically changed the configuration as well as the "look" of the whole aircraft with two powerful [Vous devez être inscrit et connecté pour voir ce lien] engines replacing the lethargic four-engine arrangement, the easily recognisable "hump" over the cockpit disappearing, the shape of the windows changed and the wingtips being squared instead of rounded.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Je lis la partie Saunders ST 27 :
[Vous devez être inscrit et connecté pour voir ce lien]
------------------------------------------------------------------------------------------------------------------------------------------------
The Saunders ST-27 regional airliner was built in the 1970s by the [Vous devez être inscrit et connecté pour voir ce lien] Saunders Aircraft Company in [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien],
Designed as a conversion of the earlier [Vous devez être inscrit et connecté pour voir ce lien], the ST-27 was the most radical DH Heron conversion program, featuring two [Vous devez être inscrit et connecté pour voir ce lien] turboprops and a stretched fuselage.
Despite its promise as a regional airliner, the project collapsed when Manitoba government funding was withdrawn.
[Vous devez être inscrit et connecté pour voir ce lien]
------------------------------------------------------------------------------------------------------------------------------------------------
The Saunders ST-27 regional airliner was built in the 1970s by the [Vous devez être inscrit et connecté pour voir ce lien] Saunders Aircraft Company in [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien],
Designed as a conversion of the earlier [Vous devez être inscrit et connecté pour voir ce lien], the ST-27 was the most radical DH Heron conversion program, featuring two [Vous devez être inscrit et connecté pour voir ce lien] turboprops and a stretched fuselage.
Despite its promise as a regional airliner, the project collapsed when Manitoba government funding was withdrawn.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Design and development
Using 13 surplus de Havilland Herons, Saunders created a conversion with some engineering input from Aviation Traders (Engineering).
The remanufactured design was based on a stretched fuselage to accommodate 23 passengers, a lengthened nose to fit a radar, reshaped vertical tail (also increased in size) and two Pratt and Whitney PT6A turboprops replacing the original four Gipsy Queen piston engines, along with other minor changes.
Using 13 surplus de Havilland Herons, Saunders created a conversion with some engineering input from Aviation Traders (Engineering).
The remanufactured design was based on a stretched fuselage to accommodate 23 passengers, a lengthened nose to fit a radar, reshaped vertical tail (also increased in size) and two Pratt and Whitney PT6A turboprops replacing the original four Gipsy Queen piston engines, along with other minor changes.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Operational history
Originally based in Quebec, the Saunders operation moved to Manitoba in 1971 when substantial government start-up funding was obtained.
The Manitoba government eventually invested $52 million (Canadian) until 1976. Only 12 ST-27s were built.
Originally based in Quebec, the Saunders operation moved to Manitoba in 1971 when substantial government start-up funding was obtained.
The Manitoba government eventually invested $52 million (Canadian) until 1976. Only 12 ST-27s were built.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Although the improved performance of the turboprops was appreciated by prospective customers, the lack of a US certification limited potential sales.
Joss- CLUB
- Messages : 1582
Re: de Havilland DH.114 Heron
Two Saunders ST-27s were dry-leased to "Sky-West" in order to provide scheduled air service to Yorkton, Dauphin and Brandon (from Saskatoon and Winnipeg) as an economic development project.
Joss- CLUB
- Messages : 1582
Page 2 sur 5 • 1, 2, 3, 4, 5
Sujets similaires
» de Havilland DH.93 Don
» de Havilland DH.88
» de Havilland DH 108
» De Havilland Vampire
» de Havilland DH.29 Doncaster
» de Havilland DH.88
» de Havilland DH 108
» De Havilland Vampire
» de Havilland DH.29 Doncaster
aeronewsline :: Accueil :: Histoire :: Aéronefs 1956 à 1965
Page 2 sur 5
Permission de ce forum:
Vous ne pouvez pas répondre aux sujets dans ce forum
|
|