Civil Engineering - Airport Engineering - Discussion

Discussion :: Airport Engineering - Section 1 (Q.No.15)

15. 

The reduced level of the proposed site of an air port is 2500 m above M.S.L. If the recommended length by I.C.A.O. for the runway at sea level is 2500 m, the required length of the runway is

[A]. 2500 m
[B]. 3725 m
[C]. 3000 m
[D]. 3250 m

Answer: Option B

Explanation:

No answer description available for this question.

Aisha said: (Feb 1, 2016)  
How?

Mandy said: (Mar 15, 2016)  
2500+2500(0.07/300) = 3958 (put the nearest one).

Suyagn Vaghela said: (Jun 5, 2016)  
Basic length is to be increased at rate 7% per 300m, Above MSL;

So, correction is (7/100) X (2500/300) X 2500 = 1458 m.

Then, total length is 3958m.

Anfield said: (Mar 3, 2017)  
7%is correct but per 300m is it?

Please explain.

Chhaya said: (May 4, 2017)  
@Anfield.

300 m Elevation 7% Length is increased.

James said: (Oct 22, 2018)  
The Max length increase possible is 35%.

So, 2500 x 0.35 + 2500 = 3375.
Nearest safe length = 3725.

Amber said: (Mar 6, 2019)  
(7/300) x 2500 = 58.33 above m.s.l.
Basic runway length = 1.5833 x 2500.
= 3958.25.
= 3725 m (app).

Aditya said: (Sep 27, 2019)  
How 2500?

It should be 2100.

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