This set of 80+ drawings by Ernest Steel, (Henry Greenly's son-in-law) of the SR 'West Country' No. 34051 Winston Churchill in 7¼ inch gauge, was completed for Bassett Lowke in the mid 1960s, (after the
funeral train of Sir Winston was drawn by No. 34051 on 30th January 1965).
The drawings are now owned by Maxitrak/Maidstone Engineering as part of the Greenly Archive, and can be purchased from them either on paper or as scanned jpg files. (see maxitrak.com/maxitrak-greenly-archive).
The design is of the locomotive as originally built, ie. non-rebuilt and follows very closely the original full size design including the three cylinders, piston valves with chain driven valve gear, fabricated smoke box with the profile of the air smoothed casing.
The valve gear is not however completely enclosed in a crankcase, rather only the chain drive mechanism is enclosed in a purpose designed case.
The scaled width is 9 ft. of the later West Country Pacifics, not the 8 ft. 6 in. of the original "Winston Churchill".
The locomotive steam brake design is of a simple single-shoe-on-each-hanger design, unlike the original's double shoe on the hangers between each pair of coupled wheels (ie. double clasp design).
Loco length over rigid wheel base: 22⅛ in., total length over frames: 63 15/16 in., width 13½ in. over cylinders/cab.
Cylinders: 3 x 2⅟16 in. bore by 3¼ in. stroke, 1 in. diameter piston valves, with one drawing specifying 5/64 in. lap and 7/16 in. total travel, and another for the inside cylinder specifying; ⅛ in. lap, and 9/16 total travel, with cut off in full gear = 81%.
Driving Wheels: 9¼ in. diameter; Bogie and Trailing wheels: 4⅝ in. diameter.
Boiler barrel: 8½ in. diameter x 29¼ in. long, with the drawings including two designs; one in copper and the other in steel :-
a). Copper; with 5 x 1⅛ in. OD superheater tubes and 33 x ⅝ in. OD fire tubes, total tube heating area 2,393 sq in.
b). Steel; with 3 x 1¼ in. OD superheater tubes and 9 x 1 in. OD fire tubes.
Fire Grate: 10 in. wide x 9 in. long = 90 sq in.
Working Pressure: 100 lb/sq in., two safety valves, tractive effort: 180 lbf.
Tender: length of rigid wheel base 19½ in., length over the frames 32 1/16 in., wheels: 5⅜ in. diameter.
As indicated below the set of drawings is not complete.
From cross references between drawings scattered through the set, and the drawing number sequence, it is obvious that at least 8 drawings are currently missing.
These drawings are:- BL 107-2 Tender Wheels, BL 120 Combination Levers, BL 120-1 Chain Drive Bracket, BL 122 Valve Gear Components, BL 123 Chain Drive, BL 128 Box Link, BL 132 Mechanical Pump Drive.
In addition there are two cross references which don't mention a drawing number, ie. for "Fire Door Unit" and "Air Smoothed Casing", and a drawing number BL 147, that is also missing from the sequence.
Therefore these three drawings are almost certainly missing as well.
Would anyone who may have information regarding any of the missing drawings, please help and get in contact with the Editor here via the Feedback page, or Maxitrak (on http://www.maxitrak.com/contactus.php ) - Thank you.