Got Gen. Nav. this week and its just become very apparent to me - the CRP-5 isn't the most exact of instruments is it?
For instance, I'm going through the Bristol feedback questions. There is a question (Q317 for reference) where the the GS is needed for headings 090 and 270T. The W/V is 045/50 and the TAS is 180.
Now, using my Pooleys CRP-5 for this, I'm getting a GS of 149kt for the 090 heading, and a GS of 218kt for the 270 heading. However, after getting the question wrong (as the calculated GS were wrong), the feedback says that the GS should be 141kt and 212kt respectively. Its a fair difference and because of the answers available (two very similar answers), I was wrong.
What is everyone's take on this? Also, if anyone could check the answers for me, I'd be dead grateful
BSR
PS. Thanks to the Mod who popped this on the end of the CRP-5 thread - didn't even think to search for a previous and relative thread. Consider my wrist slapped
