this is funny .. i did my jar-atpl navigation exam yesterday and i got the exact same question .. i'm using the Pooleys Aviat 617 which is probably similar or the same as the crp-5 .. i also got an answer somewhat close to the options given, so i decided to make a drawing and just measure the wind vector .. in the end i just had to guess the closest answer
don't know if i got it right but i passed the exam with 88.6% so i don't really care anymore if i got it right or wrong
