Originally Posted by
Alex Whittingham
This might explain slightly different outputs on various nav computers. The Dalton has always given slightly different results to the plastic CRP-5 loved by the UK CAA examiners.
It
is thought provoking, Alex.
Prior to undertaking all the CAA ATPL examinations I wrote to the CAA, asking whether the use of my fathers Aristo Aviat 617 (German-manufactured, late 1960s/very early 1970's vintage?) flight-planning computer would be acceptable for the CAA exam. The CAA confirmed, in writing, that it would be.
I had already discovered that
some results on the Aviat differed slightly from the RAF's 'Computer Dead Reckoning Mk 4A', but I thought I would probably manage. However, I eventually decided to fork out the dosh for a CRP-5, because it was just much easier to be talking the same language as the other prospective ATPL-ers, using the CRP-5, on your course at Bristol airport (in the portacabins, around 2002 or 2003!). 😉