Thursday, October 16, 2008
Excellent tool
by Dave Howard CFI, CFII, MEI from Arizona
Pros: smaller than E6B, easy to read, good quality materials and construction.
Cons: too big to carry in a pocket
Review: I have used one of these for years, even before I learned to fly! Excellent for figuring trip time, fuel mileage, currency conversions, etc. When I started flying, I bought a metal E6B, but kept coming back to the CR3 because it is more compact and solves all the same problems. Wind solutions, crosswind components, time-speed-distance-fuel, etc. Other handy solutions: Off course correction, feet-per-mile to feet-per-minute, feet-per-minute to match glide-slope, time-to-station/distance-to-station, distance flown on an arc, CG shift, etc. I see student pilot using electronic flight computers, electronic calculators, and old fasnioned long-hand math taking much more time to solve problems that this will solve simply and quickly. All I can say is if you have one of these and know how to use it, your life as a pilot is much easier.
Wednesday, May 09, 2007
ADF intercept solution
by Phil Hill from Fairbanks, AK
Pros: Simple, one-handed operation and no batteries for in-flight use. cr-5 is perfect shirt pocket size.
Cons: OK, I have to use reading glasses to see the cr-5 but the cr-3 is 'that much' too big to carry in a pocket.
Review: I absolutely love this product! I am currently a student studying for my commercial exam and I've gone to using this computer exclusively instead of the E6-B. I was introduced to this device by my instructor who is a 30 year veteran J-3 cub bush pilot here in Alaska who swears by the cr-5: "Simple one-handed operation for any problem during flight and no batteries needed in extreme cold!"
As per your suggestion to write to you for additional uses of this computer, I learned how to use it along with the ADF indicator to intercept bearings (there was no ADF examples in the instruction book). The wind side (blue radials on cr-5) is a perfect illustration of one's position in the air as if looking down from above. Used as a compass rose, place the present heading under "TC" and observe the desired magnetic bearing radial to be intercepted. Count 30 degrees from either side of that bearing to get the final intercept bearings either left or right depending on your position from the station, then count back from either one of those by each blue (10 degree)radial to get the number of degrees left or right needed to turn to achieve the desired intercept bearing.
Example: MH: 035. Desired bearing to intercept: 240. Two headings possible to intercept 240 from left or right @ 30 degrees: 210 or 270. Either turn left (if station is to the left) 125 degrees to intercept, or turn right (if station is to the right)175 degrees to intercept. Perfect solution for study work when an ADF indicator is not handy.
I know that GPS technology is sweeping the nation, but the FAA is still requiring ADF and VOR knowledge on the tests.
If my above description doesn't make sense, please write me at my E-mail address provided below. I'm always open to learning more and learning from mistakes(on the ground, lol)!
Thank you Jeppensen!
Friday, August 13, 2004
by A Customer from Portland Oregon
Review: Great flight computer, easy to use and very durable
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