Aircraft traffic pattern and runway computer

Claim 1

A COMPUTER FOR PROVIDING FLIGHT PATH MAGNETIC LANDING COURSES FOR AIRCRAFT AND THE LIKE COMPRISING: A PAIR OF CONCENTRICALLY ROTATABLE OPAQUE DISCS, THE FIRST DISC INCLUDING: FIRST 360* SCALE MEANS CONCENTRICALLY DISPOSED THEREON FOR INDICATING RUNWAYS, A PLURALITY OF ADDITIONAL CONCENTRIC 360* SCALE MEANS FOR INDICATING COURSES FOR AN AIRCRAFT TO BE FLOWN IN PREPARATION FOR LANDING; THE SECOND DISC INCLUDING ALIGNMENT INDICIA, LINES ON SAID SECOND DISC DESIGNATING FLIGHT PATH LANDING COURSE LEGS, AND A PLURALITY OF COOPERATIVELY POSITIONED WINDOWS THROUGH SAID SECOND DISC ALONG SAID LINES AND CORRESPONDING TO SAID ADDITIONAL SCALE MEANS TO PROVIDE A VIEW OF THOSE PORTIONS OF SAID ADDITIONAL SCALE MEANS DESIGNATING LANDING PATTERN COURSES FOR THE AIRCRAFT TO BE FLOWN FOR LANDING THE AIRCRAFT ON THE SELECTED RUNWAY ON SAID FIRST SCALE MEANS ALIGNED WITH SAID ALIGNMENT INDICIA.