Max drift calculation
G-SPOTs lost - I'm not sure whether you're being deliberately perverse, or cannot understand English?
Let's say your cruising at an IAS of 90 kts. The wind, as before, is 40 deg off at 20 kts. Which you assessed from the angle between your track and the wind arrow...
40 deg off at 20 kts equals, as we've seen earlier, roughly 3/4 of 20, which is 15 kts headwind - so your G/S is now 90-15= 75 kts. Or 1 1/4 miles a minute. 5/4 miles a minute. Thus if the distance is 47 miles, that'll take 47 x 4/5 = 47 x 8/10 = 37.6, call it 37 1/2 minutes....
Apart from measuring track and distance as I explained, you can do the rest in your head - or, if your mental arithmetic is too weak, on the back of the checklist....
Think in terms of simple fractions and easy mental arithmetic. If you are a lazy digi-yoof, that may take a bit of practice...
Anyone with only 25 hours on a C152, of which only 2 or 3 are navigation should declare an emergency in such a situation as they will probably lack sufficient experience to be able to cope on their own.
I do not allow people to fly a solo navigation exercise until they have passed the navigation exam and the communications exam. They must also be able to read their preent position from the GPS and be able to use the transponder.
Let's say your cruising at an IAS of 90 kts. The wind, as before, is 40 deg off at 20 kts. Which you assessed from the angle between your track and the wind arrow...
40 deg off at 20 kts equals, as we've seen earlier, roughly 3/4 of 20, which is 15 kts headwind - so your G/S is now 90-15= 75 kts. Or 1 1/4 miles a minute. 5/4 miles a minute. Thus if the distance is 47 miles, that'll take 47 x 4/5 = 47 x 8/10 = 37.6, call it 37 1/2 minutes....
Apart from measuring track and distance as I explained, you can do the rest in your head - or, if your mental arithmetic is too weak, on the back of the checklist....
Think in terms of simple fractions and easy mental arithmetic. If you are a lazy digi-yoof, that may take a bit of practice...
Anyone with only 25 hours on a C152, of which only 2 or 3 are navigation should declare an emergency in such a situation as they will probably lack sufficient experience to be able to cope on their own.
I do not allow people to fly a solo navigation exercise until they have passed the navigation exam and the communications exam. They must also be able to read their preent position from the GPS and be able to use the transponder.
