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an aircraft has to communicate with a VHF station at a range of 300 nm,if ground station is situated 2500 ft amsl,which is the lowest altitude at which contact is likely to be made???
Join Date: Sep 2010
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Question Bank
I shall be highly grateful if someone can send me the question bank. my email id is [email protected]
Regards
Regards
Join Date: Jun 2011
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@FLYFLY
THIS QUESTIPON HAS BEEN PREV ASKED IN THE FORUM
An aircraft has to communicate with a VHF station at a range of 300 nm, if the ground station
is situated 2500' amsl which ofthe following is the lowest altitude at which contact is likely to
be made?
a) 190'
b) 1,378'
c) 37,600'
d) 84,100'
Range (nm) = 1.25 sq root ht. of transmitter + 1.25 sq. root ht of reciever
300 =1.25 sq root 2500 + 1.25 sq root ht of rec.
300 = 62.5 + 1.25 sq root ht of rec
300-62.5 = 1.25 sq root ht of rec
237.5 =1.25 sq root ht of rec
237.5/1.25= sq. root ht of rec ( Assume this to be X feet amsl )
190 = sq root x
sq. both sides
x= 36100 feet
Hence, the close option is C
An aircraft has to communicate with a VHF station at a range of 300 nm, if the ground station
is situated 2500' amsl which ofthe following is the lowest altitude at which contact is likely to
be made?
a) 190'
b) 1,378'
c) 37,600'
d) 84,100'
Range (nm) = 1.25 sq root ht. of transmitter + 1.25 sq. root ht of reciever
300 =1.25 sq root 2500 + 1.25 sq root ht of rec.
300 = 62.5 + 1.25 sq root ht of rec
300-62.5 = 1.25 sq root ht of rec
237.5 =1.25 sq root ht of rec
237.5/1.25= sq. root ht of rec ( Assume this to be X feet amsl )
190 = sq root x
sq. both sides
x= 36100 feet
Hence, the close option is C
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doubt
can anyone please post the solution to this question.thnx in advance.
1) A great circle track joins position A (59?S 141?W) and B (61?S 148?W). What is the difference between the great circle track at A and B?Ans. It increases by 6°
1) A great circle track joins position A (59?S 141?W) and B (61?S 148?W). What is the difference between the great circle track at A and B?Ans. It increases by 6°
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convergency = change of long * sin latitude (mean)
conv = 7 * sin60which gives 6.02
Convergency gives the heading change when gc is followed
and HEADING increases to fly gc track westwards in SH
conv = 7 * sin60which gives 6.02
Convergency gives the heading change when gc is followed
and HEADING increases to fly gc track westwards in SH
