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2" & 3" Scale Fowler Class A7
Single Cylinder Traction Engine

The Fowler A7 traction engine was developed in 2" and 3" scales to give builders a choice of finished size, to satisfy the need for a fairly simple and robust traction engine capable of sustained hard work on the rally fields or at school fetes.

The prototypes were the mainstay of agriculture from the end of the 19th century until the 1930s; when they were replaced by the early petrol tractors. The Fowlers were used for general haulage, threshing, sawing and, in fact, almost anything that needed power from a belt to drive it.

The seven horse-power engine quickly became very popular for threshing as they were big enough to be capable, but not so big as to be awkward in the average stackyard. A foot or so in length compared with the eight horse-power engines sounds trivial but it could very often make all the difference between being able to set up in a yard or not.

Single cylinder engines were the favourites for threshing as they governed better than compound engines at low pressures. Also, it could take an extra 20 minutes raising steam to get to the higher pressure required by the compounds for normal running.

Both scale models are very powerful for their size. The 2" version being easily able to pull its driver and an adult passenger, or two children. Whereas the 3" scale model will cope with its driver and six or seven children.

The models were scaled from works drawings, so they are fully authentic. As with the Burrell they employ aluminium castings for the wheel rims.

All of the castings are finely detailed.

The 2" engine weighs just over a hundredweight; the 3" engine is nearer to three and a half hundredweight.

Specification

  2" 3"
Overall Length 34" 51 1/8"
Overall Height 23 1/8"" 34 5/8""
Overall Width 14" 20 1/2"
Diameter of Flywheel 9" 13 1/2"
Diameter of Front Wheels 7 3/4" 11 5/8"
Diameter of Rear Wheels 12" 18"
Boiler Diameter 4 3/4" 7"
Cylinder, Bore and Stroke 1 3/8" x 2" 2" x 3"
Working Pressure 100 p.s.i 100 p.s.i
Approx Weight 140 lbs 3 cwt

Drawings - Click any drawing number to get available parts

2" 3" Description Sheets Price GBP
Ex Vat
0700 0700 General Arrangement Drawing Fowler 2" or 3" 1 7.00
0007 0009 Set of Fowler Drawings (0701-0714 excl GA) 14 85.00
0701 0901 Boiler and Fittings 1 6.60
0702 0902 Front Axle and Smokebox Assembly 1 6.60
0703 0903 Front and Rear Wheels and Spud Pan Assembly 1 6.60
0704 0904 Horn Plate Assembly 1 6.60
0705 0905 Shafts and Gearing 1 6.60
0706 0906 Tender and Fittings 1 6.60
0707 0907 Cylinder Block 1 6.60
0708 0908 Cylinder Fittings 1 6.60
0709 0909 Motion Details 1 6.60
0710 0910 Brake Gear, Reversing Lever and Winding Drum 1 6.60
0711 0911 Gear Guards and Fittings 1 6.60
0712 0912 Steering Gear, Lagging Sheets 1 6.60
0713 0913 Water Pump and Plumbing 1 6.60
0714 0914 Firegrate, Lining and Painting Details 1 6.60
07sp 09sp Special Fittings and Construction Manual