0.5 x 5° x sin(60) = 2,17°, conversion angle.
I mean 5 deg. for change of longitude.
Tangens = opposite/ adjecent
Tan 2,16= opposite/ 150NM
opposite= 5,67NM.
this is appox. 6 minutes of logitude, so 60,06
Last edited by Da-20 monkey; 5th Dec 2012 at 18:03.