Average race speed -Thermal management - more important than highest GPS speed. Fe F1 Outboards

Speed Alone Doesn't Win Races... Consistency Does. When setting up an FE F1 Outboard for a 10-lap race with 50 tight buoy turns, it takes far more than simply selecting the fastest propeller in your prop box. The first prerequisite to winning any race is finishing it. The second is having a setup that delivers strong, consistent performance from the first lap to the last. Running one or two blisteringly fast laps means very little if your electronics begin overheating halfway through the race. When selecting the ideal propeller, top speed is only one part of the equation. Equally important—and perhaps even more critical—is temperature. A prop that produces the highest straight-line speed may also place a much greater load on the ESC. Six laps into the race, that extra load can lead to heat saturation, causing the ESC to progressively lose performance, activate its thermal protection, or, in the worst-case scenario, fail altogether. Today's testing demonstrated this perfectly. By reducing the propeller diameter by just 1 mm, changing from the 4314 to the 4214, the ESC temperature dropped dramatically—from the mid-70°C range to around 50°C. That's a reduction of approximately 20°C. Yes, the larger 4314 prop produced the higher top speed of 85km/h and on the circuit, reaching around 77 km/h, compared with 81km/h and 75 km/h for the 4214 . However, over the 900+ metre, five-lap, 25-buoy-turn test runs, both setups achieved virtually the same average speed of around 45 km/h. In fact, I would confidently wager that over a full 10-lap, 50-buoy-turn race, the 4214 prop would outperform the faster 4314. Why? Because it accelerates harder out of every corner, maintains a higher operating voltage with lower current draw, runs significantly cooler throughout the race, and ultimately places far less stress on the electronics. Just as importantly, the boat felt noticeably smoother and less aggressive to drive. That translates into greater confidence behind the transmitter, more consistent cornering, and ultimately fewer mistakes over the course of a race. Sometimes the propeller with the highest GPS speed isn't the fastest race prop at all. The fastest race setup is the one that delivers the highest average speed over the entire race—lap after lap, buoy after buoy, all the way to the finish.