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Old May 05, 2011, 07:30 AM
sbeirs is offline
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Originally Posted by turboparker View Post
There is a very noticeable difference in performance, even with the stock prop - although the difference is even greater, say, with the 5043 prop on the P-51, XP, or T-28.

The motor in the F4U is the same as the P-51/4-Site/XP/T-28 motor. The planes that use the P-51 motor pull more than 1A @ WOT. This pushes the stock & cheapie cells beyond their limits, as their true c-ratings are much lower than advertised. So, the voltage sags quickly, and the power falls off rapidly. With the Hyperions, the voltage is higher throughout the entire discharge cycle. Towards the end of the cycle, the difference is even greater, as the Hyperion's discharge curve is much flatter. This means that you get great power right up to the 80% discharge point, instead of putting up with poor performance during the last 2-3 minutes of the flight, as is the case with the stock & cheapie cells.

Thanks for the great info
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