Outboard · propeller size
Yamaha F300XCA / F300UCA / LF300XCA propeller size
The Yamaha F300XCA / F300UCA / LF300XCA is a 300 hp outboard with a 1.75:1 gearcase. In 2 published sea trials it ran 5,800–5,900 rpm at full throttle on 15 in props of 21 in pitch. The right prop lands full throttle in the engine's range with your normal load.
Power300 hprated
Gearcase1.75:1ratio
Sea trials2published tests
Pitch run21 inin those tests
Free checkPrefilled
MotorYamaha F300XCA / F300UCA / LF300XCA
Engine1 × 300 hp
FuelPetrol
Boatyours, in the check
Prop todayyours, in the check
Free · no account · under two minutesSpecifications
F300XCA / F300UCA / LF300XCA at a glance.
- Maker
- Yamaha
- Model
- F300XCA / F300UCA / LF300XCA
- Power
- 300 hp
- Gearcase ratio
- 1.75:1
- Full-throttle rpm in published tests
- 5,800–5,900 rpm
- Props in those tests
- 15 in diameter, 21 in pitch
- Prop lines in those tests
- Yamaha Saltwater Series II
Sea trials
Boats with a Yamaha F300XCA / F300UCA / LF300XCA and what they ran.
| Boat | Prop | WOT rpm | Speed | Conditions | Source |
|---|---|---|---|---|---|
| Sportsman Open 352 · 35.17 ft | 15 × 21 in Saltwater Series II, stainless, 3-blade | 5,900 | 53.6 kn | 3 × 300 hp · 5,896 kg (12,999 lb) as tested | yamahaoutboards.com |
| Jupiter 34 HFS · 33.75 ft | 15 × 21 in Saltwater Series II, stainless, 3-blade | 5,800 | 54.1 kn | 3 × 300 hp · 5,167 kg (11,392 lb) as tested | yamahaoutboards.com |
Related
Other 300 hp outboards.
Cross-brand options appear as other makers' engines reach the data.
Questions
About the Yamaha F300XCA / F300UCA / LF300XCA.
What rpm did the Yamaha F300XCA / F300UCA / LF300XCA reach at full throttle in published tests?
5,800–5,900 rpm across 2 published tests, with top speeds of 53.6–54.1 kn. Each test is listed above with its source.
What prop size did boats with a Yamaha F300XCA / F300UCA / LF300XCA run?
15 × 21 in on the Sportsman Open 352; 15 × 21 in on the Jupiter 34 HFS. The right size for your boat depends on its weight, hull and load; the free check works it out.
What is the Yamaha F300XCA / F300UCA / LF300XCA's gearcase ratio?
1.75:1, per Yamaha's published data.