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V2, 35 feet above DER and then 200f/m climb rate?

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Instrument Rating

"V2 is actually the "takeoff safety speed;" it's the speed an aircraft with one engine inoperative must be able to attain in order to leave the runway and be 35 feet off the ground at the end of the runway, and then maintain a 200 ft/min climb thereafter."

You get this when you google "V2 speed. I'm not sure "maintain a 200ft/min climb thereafter" is correct though. Shouldn't it be "maintain a 200ft/nm climb thereafter"? 

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1 Answers



  1. Kris Kortokrax on Jun 25, 2017

    This is an illustration of why you should not rely on Google.

    The real answers can be found in regulations and FAA publications.

    Part 23 deals with Normal, Utility and Commuter category aircraft.
    Part 25 deals with Transport category aircraft.

    Take a look at the Pilots Handbook of Aeronautical Knowledge, Chapter 10. It discusses climb requirements. In the first segment, V2 is to be reached at the end of the required runway distance, which may be the end of the runway. The regulations require varying climb gradients from 2.4 to 3.0 for transport category airplanes. This translates into 2.4 to 3.0 feet vertical attained for every 100 feet of forward movement.

    This supports your idea (although with the wrong numbers) that it is altitude gained for forward distance, not for time.

    There were some older requirements (pre-1991) for non-transport airplanes that were expressed in rate of climb at 5000′ terms.

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