1937/1938 Single Step Hydroplane
| Designer: | Fred Cooper M.Inst.N.A. |
| Consultant Engineer: | Reid Railton |
| Builders: | Saunders Roe Ltd. (I.O.W) |
Dimensions and Technical Specifications
| Length overall: | 23′ 0″ (7.01 m) |
| Length at waterline | 22′ 3″ (6.78 m) |
| Width | 9′ 6″ (2.89 m) |
| Draught: | 1′ 9″ (0.53 m) |
| Displacement: | 4,945 lbs. (2243 kg.) |
| Propeller diameter: | 12″ (30.5 cm) to 14″ (35.6 cm) |
| Propeller pitch: | 20″ (50.8 cm) to 27″ (68.6 cm) |
| Propeller speed | 9,500 rpm. |
| Gear ratio: | 3:1 increase on engine revs. |
| Engine: | Rolls Royce R Type Vee 12 |
| Starter | Compressed air type |
Construction
| Main Structure: | Two Rock Elm and Alloy runners |
| Frame: | One piece 7 ply timber |
| Bottom: | 5 ply timber |
| Deck: | 6 ply timber |
| Top deck: | Aircraft canvas and dope |
| Fittings: | Alcan and Duralmin |