APR CR-3 Wind Triangle Time/Speed/Distance Computer

    • List Price:
    • Item #7085
  • In Stock
  • List Price:
  • Item #7085
Qty

The CR 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.

We offer three models of the APR CR computer. 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.

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 apr 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.

The APR CR-3 is comparable to the now discontinued Jeppesen CR-5 computer. Made with PVC Plastic 3-3/4" Diameter.

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Buy with Confidence!

Purchase today and you can return it in the original condition through Friday, December 21, 2018 ! See our return policy.

APR CR-3 Wind Triangle Time/Speed/Distance Computer

  • In Stock
  • List Price:
  • Item #7085
Qty

APR CR-3 Wind Triangle Time/Speed/Distance Computer Overview:

The CR 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.

We offer three models of the APR CR computer. 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.

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 apr 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.

The APR CR-3 is comparable to the now discontinued Jeppesen CR-5 computer. Made with PVC Plastic 3-3/4" Diameter.

3 CUSTOMER REVIEWS

  • APR CR-3 Wind Triangle Time/Speed/Distance Computer

    3 Reviews

  • Average Customer Review:

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Top Reviews

Good shirt pocket calculator

  • By A Customer from Longview TX USA on Saturday, January 19, 2013
  • Pros: Fits in a shirt pocket
  • Review:

    I like the size and functionality of this computer. The ability to do wind calculations and still stick it in a shirt pocket was a great selling point.

    I am a little disappointed in the quality on the calculator side. The lines on the inner and outer scale do not align when the rate arrow is set to 60 on the outer scale. Some of the lines are correct and some are off as much as a line width. I don't think this is enough to significantly affect the calculations, but it would be nice if it were right on the mark.

This is not Your Father's Jeppesen CR5

  • By James from Killeen TX USA on Monday, August 15, 2011
  • Pros: Has same features as CR5
  • Review: The APR CR-3 is no more than a knockoff of the original Jeppesen CR5 that is no longer produced. The quality or material used in the APR CR-3 are no where as good as those of the original CR5. I had mine from 1971 till I lost it about 9 months ago. The plastic disk that should slide over each other stick (no I did not spill coffee on them) and are thin and I doubt if they will come even close to the CR5 longivity. I will not recommend this to anyone.

I bought this product again.

  • By Elbert from NEW BRAUNFELS TX USA on Monday, August 01, 2011
  • Pros:
  • Review: I lost my original 3.5" dia. that I bought in 1961. I now use this new one for sailing. Sailing at 6.5 knots in a 1.5 knot cross current is exactly the same problem as cruising a Bell 47G at 65 knots with a 15 knot cross wind. You just have to watch your decimal place. It's perfect.

Good shirt pocket calculator

  • By A Customer from Longview TX USA on Saturday, January 19, 2013
  • Pros: Fits in a shirt pocket
  • Cons: Accuracy is a little off
  • Review:

    I like the size and functionality of this computer. The ability to do wind calculations and still stick it in a shirt pocket was a great selling point.

    I am a little disappointed in the quality on the calculator side. The lines on the inner and outer scale do not align when the rate arrow is set to 60 on the outer scale. Some of the lines are correct and some are off as much as a line width. I don't think this is enough to significantly affect the calculations, but it would be nice if it were right on the mark.

  • Was this review helpful to you? Yes No 0 Other people found this review helpful.

This is not Your Father's Jeppesen CR5

  • By James from Killeen TX USA on Monday, August 15, 2011
  • Pros: Has same features as CR5
  • Cons: Material construction to light and plastic wheels stickl to each other.
  • Review: The APR CR-3 is no more than a knockoff of the original Jeppesen CR5 that is no longer produced. The quality or material used in the APR CR-3 are no where as good as those of the original CR5. I had mine from 1971 till I lost it about 9 months ago. The plastic disk that should slide over each other stick (no I did not spill coffee on them) and are thin and I doubt if they will come even close to the CR5 longivity. I will not recommend this to anyone.
  • Was this review helpful to you? Yes No 0 Other people found this review helpful.

I bought this product again.

  • By Elbert from NEW BRAUNFELS TX USA on Monday, August 01, 2011
  • Review: I lost my original 3.5" dia. that I bought in 1961. I now use this new one for sailing. Sailing at 6.5 knots in a 1.5 knot cross current is exactly the same problem as cruising a Bell 47G at 65 knots with a 15 knot cross wind. You just have to watch your decimal place. It's perfect.
  • Was this review helpful to you? Yes No 0 Other people found this review helpful.

1 QUESTIONS & ANSWERS

  • Previously Asked Questions

  • Tuesday, January 19, 2016

    Q: What other diameters are available in the circular computers?

    A: We have 2, 3, 4, and 6 inch.  You can find all of our CR computers here.

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Lowest Price Guaranteed!

If you find a better price elsewhere on this product we will match that price and beat it by 10% of the difference.

Buy with Confidence!

Purchase today and you can return it in the original condition through Friday, December 21, 2018 !  See our return policy.

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