Aircraft landing approach system

Claim 1

AN AIRCRAFT LANDING SYSTEM FOR PROVIDING A PILOT AN INDICATION OF WHEN TO ENTER A PREDETERMINED GLIDE PATH, AND FOR PROVIDING A COMMAND SPEED INDICATION TO AID THE PILOT IN MAINTAINING A PREDETERMINED DISTANCE TO TOUCHDOWN, TIME TO TOUCHDOWN RELATIONSHIP DURING THE APPROACH IN ORDER THAT THE AIRCRAFT LAND AT A PREDETERMINED SCHEDULED TIME COMPRISING: COMPUTER MEANS, MANUAL MEANS FOR SETTING THE ACTUAL TIME AND FOR SETTING THE SCHEDULED LANDING TIME, FIRST MEANS CONTINUOUSLY PROVIDING AN OUTPUT REPRESENTATIVE OF THE TIME REMAINING TO SAID SCHEDULED PRESET LANDING TIME, FIRST CONNECTING MEANS CONNECTING SAID COMPUTER TO SAID FIRST MEANS TO RECEIVE AS AN INPUT SAID FIRST MEANS OUTPUT, RANGE MEASURING MEANS HAVING AN OUTPUT REPRESENTATIVE OF THE DISTANCE BETWEEN THE AIRCRAFT AND THE LANDING STRIP, SECOND CONNECTING MEANS CONNECTING SAID COMPUTER TO SAID RANGE MEASURING MEANS TO RECEIVE AS AN INPUT SAID RANGE MEASURING MEANS OUTPUT, DISPLAY MEANS INCLUDING A MOVABLE COMMAND SPEED INDEX FOR INDICATING THE COMMAND SPEED OF THE AIRCRAFT, SAID DISPLAY MEANS FURTHER INCLUDING A FIXED INDEX FOR INDICATING THE DESIRED SPEED DURING THE APPROACH OF THE LANDING STRIP, MEANS CONNECTING THE OUTPUT OF SAID COMPUTER MEANS TO SAID DISPLAY MEANS, SAID SECOND CONNECTING MEANS INCLUDING A TIME CORRECTION CAM MEANS HAVING THE CAM FOLLOWER THEREOF INTERCONNECTED WITH SAID FIRST CONNECTING MEANS FOR PROVIDING A TIME CORRECTION INPUT TO SAID COMPUTER PROPORTIONAL TO THE DISTANCE OF THE AIRCRAFT FROM THE LANDING STRIP, AND SAID TIME CORRECTION MEANS HAVING A PERIPHERAL PORTION DESIGNED SO THAT WHEN THE AIRCRAFT REACHES THE FINAL PART OF THE APPROACH, THE COMMAND SPEED INDEX WILL INDICATE THE PREDETERMINED TRANSITION SPEED REQUIRED FOR LANDING.