In effetti il numero di giri a cui può arrivare un motore da eli è più alto, come dai dati riportati dal sito OS, per il resto la coppia erogata mi sembra abbastanza simile...
50SX-H Ringed Hyper Heli Engine
SPECIFICATIONS
Stock Number: OSMG1951
Displacement: 0.499 cu in (8.17 cc)
Bore: 0.866 in (22 mm)
Stroke: 0.847 in (21.5 mm)
Practical rpm: 2,000-20,000
Output:1.9 hp @ 17,000 rpm
Weight: 14.3 oz (406 g)
Includes: 60LH carburetor, #8 glow plug
Requires: muffler, drive hub
55AX Airplane
SPECIFICATIONS:
Stock Number: OSMG0556
Displacement: 0.545 cu in (9 cc)
Bore: 0.91 in (23 mm)
Stroke: 0.85 in (21.5 mm)
Practical rpm: 2,000-17,000
Output: 1.75 hp @ 16,000 rpm
Weight: 14.3 oz (404 g)
Includes: #8 glow plug, 40J carburetor, E-3010 muffler
Recommended Props: 12x7, 12x8, 13x6, 13x7
Ciao
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TBS Discovery, ViperJet 90mm, Libelle, Viper Jet 90mm Taft Hobby, L59 Albatross 90mm (WIP) F-4 Phantom 32DF (WIP), Trex 500, Radio Taranis mode 3
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