Unknown Brass Engine Start Cartridge

[Depotman]

I have a couple of these items; the common "CART ELEC ENG START No 10 Mk 1 1953", and a never previously seen "CART ELECT ENGINE START PEGASUS V K.6 K66/1". The latter has unusual double cannelure just above the base. I thought it referred to the Pegasus swivel thrust jet engine used on the Harrier, but a deep Google search didn't confirm this. Can anyone solve my conundrum?

Apologies - I forgot to add the picture of the "Pegasus" case!

 

[stecol]

Maybe for this engine ? https://en.wikipedia.org/wiki/Bristol_Pegasus

 

[TimG]

Image of markings for the cartridge?

Might be the starter for the Pegasus 5 - which was used on the Kestrel.

TimG

 

[TimG]

@Depotman ,

A little while back I did some research on British (service) engine starter cartridges. I didn't come across any engine specific cartridges. I would suggest "Pegasus V" relates to the "Pegasus 5" engine. The Pegasus 5 was an developmental/experimental engine that led to 6 and subsequent models, as far as I can ascertain it was never a production engine. If the cartridge is for the Pegasus 5, it would appear it used a unique cartridge. As stated above, the Pegasus 5 was used on the Kestrel, the forerunner of the Harrier.

TimG

 

[Depotman]

@Depotman ,

A little while back I did some research on British (service) engine starter cartridges. I didn't come across any engine specific cartridges. I would suggest "Pegasus V" relates to the "Pegasus 5" engine. The Pegasus 5 was an developmental/experimental engine that led to 6 and subsequent models, as far as I can ascertain it was never a production engine. If the cartridge is for the Pegasus 5, it would appear it used a unique cartridge. As stated above, the Pegasus 5 was used on the Kestrel, the forerunner of the Harrier.

TimG

Many thanks Tim; great research and a likely result. All it needs now is a definitive piece of evidence! It seems that the Harrier had an APU as an option for starting the engine, especially when away from a airfield, but I've yet to find out what started the APU.
Trevor