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  • $10.95 $13.95
    Speed-Time-Distance Calculator Simple to use slide rule  Calculates the third variable given the other two (distance covered, given speed and elapsed time) Outer sleeve manufactured from high impact plastic NATO size also available
  • $16.95 $21.95
    Speed-Time-Distance Calculator NATO Pattern Simple to use slide rule  Calculates the third variable given the other two (distance covered, given speed and elapsed time) Outer sleeve manufactured from high impact plastic Standard size also available  
  • $1,229.95 $1,457.99
    Simple operation with built-in programs Course and Distance computation Dead Reckoning computation Great Circle computation ETA computation LOP computation Meridian Passage computation Convenient conversions for HMS and to HHH Long term Nautical Almanac for the Sun, Moon, Venus, Mars, Jupiter, Sa...