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Exercise Answer - RPL/PPL Study Guide Volume Two

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User 5520
(@user5520)
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[attachment=1577]215FA458-71A8-4A1E-B043-9F210C499E99.jpeg[/attachment]Greetings,

I’m referring to the exercise, Fig 1.17, bottom of page 27, RPL/PPL Study Guide Volume Two, November 2018 revision.

I think the the answer is 700 Metres, however couldn’t find the answer in the book.

I have included a picture.

Thanking you in advance and very grateful for any responses.

Bert.



   
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(@john-heddles)
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700m sounds good.

12m obstacle requires 240m clear space to make the 5% gradient required.

With the 80m to the obstacle, we need to lose 240-80=160m from the field.

This leaves us with 860-160=700m for the takeoff calculations.


Engineering specialist in aircraft performance and weight control.


   
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Bob Tait
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Yes, 700m is correct. The answer was there but hidden behind the diagram. I've fixed that. Thanks for your feed-back,



   
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User 5520
(@user5520)
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Thank you greatly Bob, for your kind and prompt reply.



   
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User 5520
(@user5520)
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Thank you John. I appreciate you taking the time to reply.



   
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