Civil Engineering - Airport Engineering - Discussion

Discussion Forum : Airport Engineering - Section 1 (Q.No. 3)
3.
For the proposed runway stated in if the aerodrome reference temperature is 17°.2, the net designed length of the runway is
2716 m
2816 m
2916 m
3016 m
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
15 comments Page 1 of 2.

Prakash bhattarai said:   2 years ago
@All.

Actually, the question was; The length of the runway under standard atmospheric conditions is 1800m. If the actual reduced level of the site is 1200m and the aerodrome reference temperature is 17 'C, the net designed length of the runway is:

Then how the answer is 2816m? Anyone, explain the answer in detail.
(2)

Tanuj Agarwal said:   8 years ago
The data in the question is insufficient.

1. Basic Runway length is missing.
2. Elevation of the airport above MSL is missing.
The rise in temp at the particular elevation= [ART- {15-(0.0065*elevation)].
The corrected runway length would be = basic runway length+ [rise in temp*Basic length/100].
(2)

Ranku Biswas said:   6 years ago
@Anjila.

The above question is incorrect and data is missing.

After considering your question the combined correction for both temperature and elevation is 2534.4 which is 40.8% of basic length. And that's an error as per ICAO. Remodelling should be done.
(2)

Aparna said:   10 years ago
Am I correct?

The actual runway length= 2,000 m.

Temperature correction:

1 degree --> 1%.

17 degree--> 17% extra.

Corrected runway length = 2000+((17/100)*2000) = 2340 m.

But how the answer is 2816 m.

Can anybody explain it?

Anjila Bhatta said:   7 years ago
"The length of a runway under standard atmospheric conditions is 2000 m. If the actual reduced level of the site is 1200 m, if the aerodrome reference temperature is 17.2, the net designed length of the runway is" is the actual question.

Onkar Jagtap said:   3 years ago
@All.

Basic runway length = 1000m.
Airport R.L = 210.00m.
Airport ref temp = 30°
Highest Point RL along Highway = 102.5 m.
Lowest point R.L along Runway = 98.4 m.
(1)

Anjila bhatta said:   7 years ago
@Aparna,

1% per 1 degree rise in temperature above airport standard temperature of 15°, so basically it should be around 2%.
(1)

Navya said:   5 years ago
The standard length for larger aircraft is 2400 and for light - 1800.

17.2 degree.
2400 * 0.172 = 412.8.
2400 + 412.8 = 2812.8.
(12)

Satya said:   8 years ago
@Aparna.

How you have taken actual value as 2000m & temperature correction as 1 degree?

Can you clarify me?

Viral kohli said:   8 years ago
@Satya.

For every degree rise in temp 1% temperature correction is to be applied IRC recommendation.
(1)


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