Jeppesen CR-3 Flight Computer: the E6B's Cool Cousin

While the E6B “Whiz Wheel” is the most popular mechanical flight computer still in common use, there are many alternative designs, including the Jeppesen CR-3. Patented in 1955 and manufactured by Jeppesen-Sanderson, a company with a long and storied history in aviation navigation, the CR-3 dispenses with the slider used by Dalton-style computers, instead using a more compact disc mechanism to perform wind triangle calculations. E6B video:    • E6B Flight Computer: the Pilot's Best Friend   Pelorus / Course Corrector video:    • Pelorus, Course Corrector, and Marine Comp...   Drift Sights video:    • WWII Drift Sights: a Grounded Approach to ...   0:00 Introduction 0:50 Elrey Jeppesen 2:21 Jeppesen & Co. And “Jepp Charts” 3:36 Other Flight Computers 4:15 CR-3 Patents 4:38 Time-Speed-Distance 6:00 Fuel Consumption 6:08 Unit Conversions 7:13 Altitude 9:11 Airspeed 11:26 Mach Number 12:45 Wind Side 13:33 Magnetic/True Course Conversion 14:02 Crab Angle 16:36 Wind Calculation 18:07 True Course / Ground Speed 19:50 True Heading / Airspeed 21:05 Off-Course Correction 22:03 Outro SOURCES https://news.google.com/newspapers?id... https://web.archive.org/web/201007191... http://sliderulemuseum.com/Aerospace.... https://web.archive.org/web/201206270... https://web.archive.org/web/201503300... https://web.archive.org/web/200611300... https://patents.google.com/patent/US2... https://physicsmuseum.uq.edu.au/sites... http://www.flight-computer.de/Air-Nav...