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I dont retrieve the techical drawing or manual where the diameter was indicated but I remeber that is 18 swg = 1,02mm. I'll try find again when I come back my home.

British aerial was în staînless steel. 1.02 mm dia

I've this drawing

note: the first airplanes had their cockpit paint in "gris bleu", not in "bleu de nuit"(midnight blue) which was appear dec 39

Yes, thank's to corrected me, my english level is primary yet I confused centerline and chord the note 21st aug 41 about the LE yellow stripes:

On Spitfire the yellow stripe, 4" width lined up leading edge chord, run from mid span to wingtip.

this is an excerpt from Anson Aircraft A.P. 1525A, issued april 1944. There are another colours for heating, de-icing propeller or windows This colour system seems common to british ww2 aeroplanes and used on Spitfire. Detail table 13.6.1939 On Spitfire, hydraulic and pneumatic use aluminium alloy pipe, cooling and oxygen are copper pipes

when the season is good and icing conditions is low, the deicer boots would be removed to obtain a better speed and reduced the consumption. The drag of this boots decrease the speed , 15/20 mph. on this image de icer is in place https://media.gettyimages.com/photos/14th-december-1944-a-b25-mitchell-of-180-squadron-being-repaired-in-picture-id3380008?s=2048x2048, but black rubber does no contrast with camo paint, we can see along the de icer boot the engine gray paint which protect the cement and the metal strip as stipulated by the EMM / installing:

This aircraft is an P40 N-1 for four reasons: - there is bead sight only, (the ring sight is omitted on N models) - the rear vision mirror is inside windshield (only on N) - the landing gear visual position indicator protrude the wing above ldg strut (L & N models) - the rear vision window is early type

it's not a brake line but safety lock to avoid open the oil filler plug before releasing pressure of strut. on left, brake line, the rigid line(blue) then flexible hose(red) on right the safety lock(red)

exotic hawk, great work, très sympa. I notice that A7 had two guns wing as P36 and H75A1 and early A2, or it was four guns wing but two was mounted only? Belle pièce, la silhouette est bien rendu et la finesse de travail et peinture excellentes. Bravo yes, I have, the oil cooler is at bottom, just aft the engine and slightly s't"board offset 1 inche

HTH

cockpit could be receive a last coat of tinted primer yellow green, ddg or bronze green, the inner face of enclosure frames was specified to be black

proportion by Curtiss was zinchromat primer 1 gallon enamel black 0,1 gallon aluminium paste 4 ounces toluol 2 gallons Dupont and other zinchromat primer 1 gallon enamel black 0,1 gallon thinner 1 gallon

seeing the sprues and instructions sheets I note some wrong details: the control stick had two tubes only, one torque tube for aileron and one rod push pull for elevator. This rod was in center line on H75-81/P36-40C, and had right offset on P40D/H87 up,, so the part E26 must be ommitted. the hydraulic hand pump was a double cylinder and the shape of handle was curved as a "?", not straight as E22 There was not shoulder straps(PE1) but a safety belt only on top of wing if the size of ammo door is correct, the little door to loaded the gun is too narrow, it is near square shape.

I found this

Another view of P9450:

from Air Publication 1565A, Spitfire I aeroplane- Merlin II:

this box could be receive the Curtiss electric propeller switches(D-30/40 & N) but is unused on D-25 which had Hydromatic Hamilton propeller.

Mk VIII; mod 931 apr 1944: to delete undercarriage visual indicators - weight decrease -3.3lbs

On TBM, F6F, F4F the Pitot tube was painted in red lacquer, On F4F & F6F it was stencilled on Pitot tube : "DO NOT USE AS A HANDLE" in mat black

deleted

Curtiss and NAA used for exhaust collector, stack & dampener "stl steel : 57-136-9" "stl steel : 57-180-3" "stn. stl. : AN-QQ-757 & AN-WW-858" "corros. res. steel sheet. : AN-QQ-757 & AN-WW-858" I no found for british equivalent, RR manual Merlin 66 to 85 indicates "steel sheet pressed"

above early Mk IX. below, the MH 809, late Mk IX. compare gun blister and elevator cut out