Outboard · propeller size
Yamaha F300UCA / LF300UCA propeller size
The Yamaha F300UCA / LF300UCA is a 300 hp outboard with a 1.75:1 gearcase. In one published sea trial it ran 6,000 rpm at full throttle on 15.25 in props of 19 in pitch. The right prop lands full throttle in the engine's range with your normal load.
Power300 hprated
Gearcase1.75:1ratio
Sea trials1published tests
Pitch run19 inin those tests
Free checkPrefilled
MotorYamaha F300UCA / LF300UCA
Engine1 × 300 hp
FuelPetrol
Boatyours, in the check
Prop todayyours, in the check
Free · no account · under two minutesSpecifications
F300UCA / LF300UCA at a glance.
- Maker
- Yamaha
- Model
- F300UCA / LF300UCA
- Power
- 300 hp
- Gearcase ratio
- 1.75:1
- Full-throttle rpm in published tests
- 6,000 rpm
- Props in those tests
- 15.25 in diameter, 19 in pitch
- Prop lines in those tests
- Yamaha Saltwater Series II
Sea trials
Boats with a Yamaha F300UCA / LF300UCA and what they ran.
| Boat | Prop | WOT rpm | Speed | Conditions | Source |
|---|---|---|---|---|---|
| Robalo R317 Dual Console · 31 ft | 15.25 × 19 in Saltwater Series II, stainless, 3-blade | 6,000 | 47.3 kn | 2 × 300 hp · 4,896 kg (10,793 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 F300UCA / LF300UCA.
What rpm did the Yamaha F300UCA / LF300UCA reach at full throttle in published tests?
6,000 rpm across one published test, with top speeds of 47.3 kn. Each test is listed above with its source.
What prop size did boats with a Yamaha F300UCA / LF300UCA run?
15.25 × 19 in on the Robalo R317 Dual Console. The right size for your boat depends on its weight, hull and load; the free check works it out.
What is the Yamaha F300UCA / LF300UCA's gearcase ratio?
1.75:1, per Yamaha's published data.