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aeronewsline :: Accueil :: Histoire :: Aéronefs 1956 à 1965
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Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 16:42
Design and development
he aircraft was designed to a BEA requirement for a 100-seat aircraft to replace their Viscounts.
The original Type 870 design was then modified when TCA expressed their interest in the design as well, and Vickers returned the updated Type 950 that filled both requirements.
The main difference between the Viscount and Vanguard was the construction of the [Vous devez être inscrit et connecté pour voir ce lien].
The Vanguard started with the original Viscount fuselage, but cut it off about half of the way up from the bottom, and replaced the top section with a larger-diameter fuselage to give it a double bubble cross-section (similar to the [Vous devez être inscrit et connecté pour voir ce lien]).
The result of the larger upper portion was a roomier interior, with increased cargo capacity below the floor.[Vous devez être inscrit et connecté pour voir ce lien]
he aircraft was designed to a BEA requirement for a 100-seat aircraft to replace their Viscounts.
The original Type 870 design was then modified when TCA expressed their interest in the design as well, and Vickers returned the updated Type 950 that filled both requirements.
The main difference between the Viscount and Vanguard was the construction of the [Vous devez être inscrit et connecté pour voir ce lien].
The Vanguard started with the original Viscount fuselage, but cut it off about half of the way up from the bottom, and replaced the top section with a larger-diameter fuselage to give it a double bubble cross-section (similar to the [Vous devez être inscrit et connecté pour voir ce lien]).
The result of the larger upper portion was a roomier interior, with increased cargo capacity below the floor.[Vous devez être inscrit et connecté pour voir ce lien]
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 16:43
With this larger, and heavier, fuselage came the need for a new engine to lift it. Rolls-Royce delivered their new [Vous devez être inscrit et connecté pour voir ce lien] design with a nominal 4,000 hp/3,000 kW (as compared to the Viscount's [Vous devez être inscrit et connecté pour voir ce lien] of about 1,700 hp/1,300 kW).
This allowed for a much higher service ceiling and cruising speed, the Vanguard had a service ceiling almost
twice that of the Viscount.
The Vanguard was one of the fastest turboprops ever and was faster than the present day [Vous devez être inscrit et connecté pour voir ce lien] or [Vous devez être inscrit et connecté pour voir ce lien].
The first Type 950 prototype flew on 20 January 1959.
This allowed for a much higher service ceiling and cruising speed, the Vanguard had a service ceiling almost
twice that of the Viscount.
The Vanguard was one of the fastest turboprops ever and was faster than the present day [Vous devez être inscrit et connecté pour voir ce lien] or [Vous devez être inscrit et connecté pour voir ce lien].
The first Type 950 prototype flew on 20 January 1959.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 16:46
Operational history
The Vanguard entered service with BEA and TCA in late 1960.
BEA operated their first Vanguard schedule on 17 December from Heathrow to Paris.
Following delivery of their full fleet of six V951 and 14 V953 aircraft by 30 March 1962, the type took over many of BEAs busier European and UK trunk routes.
The aircraft received names of famous Royal Navy warships, the first G-APEA was named "Vanguard", but these tended to be dropped later in service. Initial seating was 18 first-class at the rear and 108 tourist, but this was changed to 139
all-tourist, in which configuration, the Vanguard had very low operating costs per seat/mile.
The Vanguard entered service with BEA and TCA in late 1960.
BEA operated their first Vanguard schedule on 17 December from Heathrow to Paris.
Following delivery of their full fleet of six V951 and 14 V953 aircraft by 30 March 1962, the type took over many of BEAs busier European and UK trunk routes.
The aircraft received names of famous Royal Navy warships, the first G-APEA was named "Vanguard", but these tended to be dropped later in service. Initial seating was 18 first-class at the rear and 108 tourist, but this was changed to 139
all-tourist, in which configuration, the Vanguard had very low operating costs per seat/mile.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 16:56
On flights up to 300 mi (480 km), such as from London to Paris, Brussels and Amsterdam, the type could match the block times of the pure jets which were being introduced in the early 1960s.
The remaining BEA fleet passed to [Vous devez être inscrit et connecté pour voir ce lien] on 1 April 1974 and the last BA passenger flight with the type was on 16 June.
TCA initiated Vanguard schedules on 1 February 1961 with two flights from Toronto and Montreal via intermediate stops to Vancouver.
The fleet was also used on services from Toronto and Montreal to New York and Nassau, Bahamas.
The remaining BEA fleet passed to [Vous devez être inscrit et connecté pour voir ce lien] on 1 April 1974 and the last BA passenger flight with the type was on 16 June.
TCA initiated Vanguard schedules on 1 February 1961 with two flights from Toronto and Montreal via intermediate stops to Vancouver.
The fleet was also used on services from Toronto and Montreal to New York and Nassau, Bahamas.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 17:00
Cargo operations
In 1966 Air Canada removed all the seats in CF-TKK and refitted the aircraft for pure cargo work, in which role it could carry 42,000 lb (19,050 kg) of freight.
Known by the airline as the "Cargoliner," it was the only such conversion, but survived to be the last Canadian Vanguard
to be retired in December 1972.[Vous devez être inscrit et connecté pour voir ce lien]
In 1966 Air Canada removed all the seats in CF-TKK and refitted the aircraft for pure cargo work, in which role it could carry 42,000 lb (19,050 kg) of freight.
Known by the airline as the "Cargoliner," it was the only such conversion, but survived to be the last Canadian Vanguard
to be retired in December 1972.[Vous devez être inscrit et connecté pour voir ce lien]
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 17:03
BEA operated nine Vanguards modified to the V953C "Merchantman" all-cargo layout from 1969, with the first two conversions being designed and carried out by [Vous devez être inscrit et connecté pour voir ce lien] Engineering Ltd (ATEL) at [Vous devez être inscrit et connecté pour voir ce lien].
BEA modified the remainder at Heathrow using kits from ATEL.
A large forward cargo door (139 in/353 cm by 80 in/203 cm high) was incorporated.
The Merchantmen continued in service with BA until late 1979 when the remaining five were sold.
BEA modified the remainder at Heathrow using kits from ATEL.
A large forward cargo door (139 in/353 cm by 80 in/203 cm high) was incorporated.
The Merchantmen continued in service with BA until late 1979 when the remaining five were sold.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 17:12
Air Bridge Carriers purchased several of the Merchantmen and operated them until 15 August 1992, when their name was changed to [Vous devez être inscrit et connecté pour voir ce lien].
Hunting Cargo operated their last V953C flight on 30 September 1996 and donated G-APEP to [Vous devez être inscrit et connecté pour voir ce lien] on 17 October 1996.
Hunting Cargo operated their last V953C flight on 30 September 1996 and donated G-APEP to [Vous devez être inscrit et connecté pour voir ce lien] on 17 October 1996.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 17:14
Variants
Type 950
Prototype, one built and two uncompleted as static test airframes.
Type 950
Prototype, one built and two uncompleted as static test airframes.
Bodigard- CLUB
- Messages : 290
Re: Vickers 950 Vanguard
par Bodigard Lun 24 Jan 2011, 17:24
Type 951
BEA, 20 ordered, six delivered. All in 127-seat, mixed class configuration (18 first and 109 economy)
BEA, 20 ordered, six delivered. All in 127-seat, mixed class configuration (18 first and 109 economy)
Bodigard- CLUB
- Messages : 290
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