Ghost 45rated at 4,400 lbf (19.57 kN)
Ghost 48 Mk.1(103)rated at 4,850 lbf (21.57 kN)
Ghost 48 Mk.2(104)
Ghost 50 Mk 1rated at 5,000 lbf (22.24 kN) at 10,000 rpm with a weight of 2,011 lb (912 kg)
Ghost 50 Mk 2rated at 5,125 lbf (22.80 kN)
Ghost 53 Mk 1(105)
Ghost 103rated at 4,850 lbf (21.57 kN)
Ghost 104rated at 4,950 lbf (22.02 kN)
Ghost 105rated at 5,150 lbf (22.91 kN)
Svenska Flygmotor RM2Licence production and development 5,000 lbf (22.24 kN) at 10,250 rpm
Svenska Flygmotor RM2BRM2 with afterburner 6,200 lbf (27.58 kN) wet at 10,250 rpm; 4,750 lbf (21.13 kN) dry at 10,250 rpm.
Fiat 4001(Ghost 48 Mk.1) Fiat licence production.
The Ghost originated when de Havilland started work on what was to become the Comet in 1943. Frank Halford's first design, the H-1, was just entering production and he was able to meet the power requirements of the Comet by scaling up the H-1. The resulting H-2 used ten larger combustion chambers in place of the Goblin's sixteen smaller ones, using bifurcated "split intakes" which were fed by each diffuser duct.
While the prototype was being built, de Havilland bought Halford's firm and reformed it as the de Havilland Engine Company, renaming the H-1 and H-2 as the Goblin and Ghost respectively.
Both engines were characterised by a quite simple setting: a single-stage centrifugal compressor, followed by a combustion chamber to direct the flow to a single-stage axial turbine.
The first tests on Ghost (H2) began in 1944 and the engine was ready in 1945, even before the completion of the planes to which it was intended.
De Havilland DH.106 Comet (airliner and transport)
De Havilland DH.112 Venom (fighter-bomber)
De Havilland FAW.20 Sea Venom (embarked fighter-bomber)
Saab J29 Tunnan (fighter)
Adapted for john Cobb's Crusader (speedboat)
Ghost 50 at RAF Museum Cosford -
Photo by Arjun Sarup
On 23 March 1948, John Cunningham, flying a modified Vampire Mk I, which had been furnished with extended wing tips, powered by a Ghost engine, achieved a new world altitude record, having attained a maximum altitude of 59,446 ft (18,119 m).
A great external link below 23 March 1948 and James Cunningham CBE DSO DFC AE
by This Day In Aviation History
The Avro 691 Lancastrian was a Canadian and British passenger and mail transport aircraft of the 1940s and 1950s developed from the Avro Lancaster heavy bomber. The Lancaster was named after Lancaster, Lancashire; a Lancastrian is an inhabitant of Lancashire.
The Lancastrian was basically a modified Lancaster bomber without armour or armament and with the gun turrets replaced by streamlined metal fairings, including a new nose section. The initial batch was converted directly from Lancasters; later batches were new builds.
With the advent of gas turbine engines there emerged a need to test the new engines in a controlled flight environment in well instrumented installations. An ideal candidate emerged as the Avro Lancastrian which could easily accommodate the test instrumentation as well as fly on the power of two piston engines if required. Several Lancastrians were allocated for engine test-bed work with turbojet engines replacing the outer Merlin engines or test piston engines in the inner nacelles.** Fuel arrangements varied but could include kerosene jet fuel in outer wing tanks or fuselage tanks, with avgas carried in remaining fuel tanks.
The Ghost 50. was tested in the outer positions of Lancastrian VM703, first flown with the jets on July 24, 1947. As the original intention with the Comet was to use rockets to boost thrust on takeoff, VM703 was also used to test the only rocket then available, the captured German Walter 109-500, two of which were fixed under the fuselage. A second Ghost-Lancastrian, VM729, handled the final development and certification flying of the Ghost 50 for the Comet 1 so that Comet development from July 1949 began with a reliable and mature engine.
Ghost-Lancastrian VM7032x de Havilland Ghost 50 + 2x Rolls-Royce Merlin + 2x Walter HWK 109-500 RATOG packs
(The Walter HWK 109-500 was a liquid-fuelled rocket engine developed by Walter * in Germany during the Second World War and had been 'captured.'
First flight 24 July 1947 - Testing the Engines and takeoff-boost system proposed for the de Havilland Comet 1 airliner.
*Hellmuth Walter Kommanditgesellschaft -
Ghost-Lancastrian VM729 2x de Havilland Ghost 50 + 2x Rolls-Royce Merlin - Used for afterburner research and later development and certification of the Ghost 50 for the Comet 1 a.
First flight 1943
Introduction 1945 (BOAC)
Number built 91 (including conversions)
Developed from - Avro Lancaster
Trans Canada Airlines
Royal Air Force
Rolls-Royce (engine test-beds)
**Other Lancastrian test beds were built with; Rolls Royce Nene (2 variants) Avon (2 variants), Sapphire (1 variant) Griffon (1variant) and 1 Merlin 600
Nohab Flygmotorfabriker AB was founded in Trollhättan, Sweden, in 1930 to produce aircraft engines for the Swedish Board of Aviation. As the name of the company indicates it was a subsidiary to NOHAB. In 1937 it became a part of the newly founded SAAB but in 1941 Volvo acquired a majority of the stock and the name was changed to Svenska Flygmotor AB (SFA), and later on Volvo Flygmotor.
Since the 1950s the company has been the major engine supplier to the Swedish Air Force. Today Volvo Aero is a partner in more than ten commercial engine programmes. Components from Volvo Aero are installed in more than 90% of all large commercial aircraft engines sold. *
Volvo Aero is a supplier of single-engine systems for military aircraft. These have largely been in partnership with other engine manufacturers, including the RM1 (de Havilland Goblin) for the Saab 21R, RM2 (de Havilland Ghost) for the Saab J29.
A Swedish licensed-built de Havilland Ghost, the RM 2
Sistema Museale dell'Università degli Studi di Palermo
Having a big sale, on-site celebrity, or other event? Be sure to announce it so everybody knows and gets excited about it.
Are your customers raving about you on social media? Share their great stories to help turn potential customers into loyal ones.
Running a holiday sale or weekly special? Definitely promote it here to get customers excited about getting a sweet deal.
Have you opened a new location, redesigned your shop, or added a new product or service? Don't keep it to yourself, let folks know.
Customers have questions, you have answers. Display the most frequently asked questions, so everybody benefits.