1. Testing New Jetpack on Skis - Troy Hartman

    02:31

    from Troy Hartman / Added

    343K Plays / / 35 Comments

    50% throttle yielded a speed of 47 mph. A second set of test runs demonstrated ascents of black diamond rated slopes. More details to follow at http://www.troyhartman.com . http://www.troyhartman.com/speedflying/ License…

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