Description

APR's CR Circular Computer has been a favorite of professional pilots, navigators, and flight engineers for approximately 20 years. If you began your flying career with the basic E6-B type computer you will find both similarities and important differences between the E6-B and the CR Computers. Once you become familiar with the CR computer it will more than likely be your favorite cockpit aid. Many of the scales on the calculator side are similar to those found on the E6-B. However, the CR has several new functions available on no other computer, making it the most useful instrument for modern piloting needs. The wind side of the CR uses a wind triangle that is somewhat different than the E6-B and it provides quick, simplified solutions to all course navigation problems. The larger CR-6 provides maximum readability while the smaller CR-3 and CR-4 models provide convenience. Only apr's computers have the exclusive apr Microset that allows the computers to be aligned for total accuracy before leaving the factory. Although they are precision instruments you will take pride in owning, the information they give you is only as good as the information you give them. For this reason, we recommend you take the time to study this manual carefully. Our CR computer is purchased by the U.S. Government under the identifying description of NSN 1R 6605-00-928-4552 UX. Calculator The calculator side of the CR computer is designed for quick, accurate computation with problem solving capabilities adapted to current aviation needs. Wind Computation The wind-computing side of the CR computer applies the lastest "state-of-the-art" technology. With this new instrument your pre-flight and in-flight calculations are easier and more accurate.

Aero Products CR-3 Circular Wind Triangle T/S/D Computer by APR

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Current Price

$36.35

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$24.86

Min Price

$8.65

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$36.35

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32%

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Product review & video

okay this video is how to use the Jefferson type cr4 for wind finding a wind drift when you're doing your pre-flight planning or for finding your ground speed to determine how long it's going to take you for each leg so what we do is on the outer scale here we have our Tad's true airspeed of the aircraft on this next scale here we have the degrees of drift that we're going to have to adjust for and on the inner scale we have the green angles for our wind so zero nine zero one hundred etc then on these scales here these are our wind speeds and if it's up here it's going to be headwind down here a tailwind that would be a right hand crosswind and our left hand crosswind or sorry oh right wind from the right and it wind from the left so what we do the first thing we do is we set this big toss triangle on our airspeed and in this case I've set it to 100 knots then we use the green dial and