Originally Posted by
TheChitterneFlyer
IO540
Interesting that you consider your circular slide rule to be something that becomes redundant upon gaining your PPL!
IO540 is well known for believing that all calculations and navigation should be done electronically and all "whizz-wheels" should be buried at midnight in an unmarked grave.
I certainly think he's wrong, but please don't wind him up - it's not worth it.
G