Aboukir’s High-Altitude Spitfire (Original Modification)

[wuzak]

The Aboukir Spitfire used a single stage supercharger with two speeds.

Single speed single stage.

 

[Zipper730]

Single speed single stage.

I thought the V's were twin-speeds...

 

[wuzak]

I thought the V's were twin-speeds...

Nope.

The Mk.III had 2 speed (Merlin XX), some others were modified with the Merlin XX and maybe some Seafires. Otherwise all 2 speed engines in Spitfires were also 2 stage engines.

The Spitfire V was mostly fitted with the Merlin 45.