ORIGINAL: 1LO64
Correct me if I'm wrong but the Stryker B comes with the same prop as the Aerobird Challenger correct??
You're wrong.
The Stryker "B" comes with a 5.9x3 prop, while the Aerobird Challenger prop is 6.5x3. The B-series comes with a spare "LiPo prop" which is 5.3x3.3, and with a 3S, 11.1V pack, it really transforms the bird. You'll feel as if you're flying a totally different plane.
The first thing I do with a stock Stryker using NiMH batteries at my elevation (5000') is to put on the ABC prop to replace the stock prop. It changes the 7-cell flight from "wallowing around barely above a stall" to "flies with some authority, loops from a shallow dive". Of course, it also reduces the run time from about 9 minutes to around 7 as well. Price I'm willing to pay
From what I've read, the stock Stryker prop works pretty well at lower elevations.
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Matt B.