My copy of 'British Piston Aero-Engines' agrees with Wiki:
FALCON I, 230 hp, (1916-17), 'Rolls-Royce 190 hp, Mk I', 12-cylinder, upright 60-degree Vee water-cooled, poppet-valve (two- valve engine), Bore/stroke 4 × 5.75in (101.6 × 146.0 mm). Vol. 866.5 cu in. (14.2 litre). Compression ratio 5.15:1, geared, epicyclic .589:1, R.H./L.H. tractor-drive. (Engines with even serial numbers were L.H. tractor but the great majority built were R.H., with odd numbers .) Two Watford magnetos, two Duplex 34 mm Claudel- Hobson carburettors, feeding three-cylinder inlet manifolds. 250 built at Derby and by Brazil Straker. Length 68.0 in; width 40.3 in; height 37.2 in.
Originally Posted by
Gary cw
I am very sorry if I have upset anyone. But my understanding is that the epicyclic gearing was in fact patented by Rolls Royce. If anyone believes it was ' invented' before please let me know. I can change my details. Going back to the patent it would not have been approved as a patent if it already existed.
From Wiki:
See:
https://en.wikipedia.org/wiki/Epicyclic_gearing