Thanks Mel. I'm presently unable to post photos, so if someone hasn't posted recently, and would like to, please be my guest.:)

The next mystery cockpit:

http://tkfiles.storage.msn.com/x1pxz...PE1xoe1A3C0yX8

Hurricane?
(I have not checked the list of "done" aircraft and will be amazed if this is right and it has not been done already!)
Mods - how about the uptodate list of cockpits either as a sticky or as the first item when "What cockpit" is reset?

DH Vampire - throttle looks like one from a jet...

The Control Spade Grip looks exactly like the one used on starboard side of the Boulton Paul Balliol, VL917 so a wild guess either Boulton Paul P.111 or the P.120.

Sorry mates, not a Hurricane, a Vampire, nor a Boulton Paul Balliol.

Supermarine. Maybe the Attacker?

Hawker Tempest or Typhoon?

Not the Tempest, Typhoon, nor the Supermarine Attacker.

Miles Magister - at least that one is visible above the starboard canopy rail. As to the one we are looking into - Martin Baker MB5

Not the Martin Baker MB5. Only a few were built, and the aircraft never fired a shot in anger. As for the aeroplane in the background, could it be a Parnall 382 Heck III?;)

Can we take it that this is a British aircraft? The layout of the panel is similar to the Typhoon in that the Oil Pressure and Oil Temperature gauges are the same type and in the same position. Control column is also similar to the one used on the Sea Fury. Am I in the right era?

Hawker Henley or the Hawker Tornado perhaps?

Sorry, not the Hawker Henley or Hawker Tornado.

It is indeed British however. It first flew in 1946. Of the few that were built, not all were flown.

Two aircraft come to mind. One being the Blackburn B-48 (Firecrest) and the other the Short Sturgeon however the Sturgeon was a twin which eliminates that one.

Similar to the Blackburn B-48 and the Martin-Baker MB5, but sorry not either, nor the Short Sturgeon. The manufacturer of the mystery aircraft has been mentioned in an earlier response today.

British Aircraft Manufacturers mention to date:-
Blackburn
Boulton Paul
De Havilland
Hawker
Martin Baker
Miles
Supermarine
Of these the only ones to have had aircraft with first flights in 1946 were De Havilland (DH 108), Miles (Marathon), Shorts (Sturgeon) and Supermarine (Attacker).
Both Sturgeon and Attacker have already been eliminated, the Marathon eliminates itself. You state "Similar to the Blackburn B-48 and the Martin-Baker MB5" but the DH 108 was certainly nothing like the Blackburn or MB.5 also even though only 3 DH 108s were built all of them flew so it is not the DH 108.
The only other aircraft that flew for the first time in 1946, that were remotely like the aircraft concerned were the DH Chipmunk and Westland Wyvern but I somehow do not think this cockpit was from the Wyvern or most certainly not the Chipmunk. Could you check your first flight date?

Is it a Supermarine Spiteful?

oncemorealoft
It could be the Supermarine Spiteful. However it does not tie in with the clue given by evansb.
He stated that the aircraft type concerned first flew in 1946.
The first Spiteful to fly was NN660, a Mk XIV Spitfire fuselage with the the Spiteful laminar flow wing. It flew on the 30th June 1944.
The second prototype NN664 built to the full production standard of Specification F.1/43 was flown by Jeffrey Quill on the 8th January 1945.
The first production aircraft RB515 flew in April 1945.
Likewise the first Seafang, Spiteful F.14 fitted with an arrestor hook flew early in 1945.

MReyn24050
 

According to three sources, one being www.supermarine-spitfire.co.uk the Seafang first flew in 1946.

A Seafang it is!