Airline Pilot Central Forums - CP-1 Plotter...Why does the "compass plotter" read in reverse??

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Quote:

Originally Posted by TonyC (Post 74980)

Lay your CP-1 on a chart, and align the center of the circle and the center number along a line of longitude (one that goes from North to South). The bottom edge of the plotter now lies along a line that runs East to West (true), or 090/270 degrees.

Rotate the plotter 10 degrees to the right (clockwise). The bottom edge now runs along a line that is 100/280 degrees. What number appears on the top index?

You can do the same thing along lines of latitude (East/West), but that method is less accurate due to the fact that such lines are not straight, they're curved. When you use them, the numbers on the index will center around 360/180.

Does that help?

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Tony:

Your ARE the Man! I've been away from primary flight training for so long that I was wondering if they even taught that basic navigation anymore. I figured they just gave 'em an electronic E6-B and told them to punch the identifier into the RNAV and they would get there eventually.:D

When I was first hired at FDX they still required us to carry a wiz wheel. Heck, when I went to college they made us carry slide rules! Do they even still make those things?

Quote:

Originally Posted by ClutchCargo (Post 75069)

Heck, when I went to college they made us carry slide rules! Do they even still make those things?

I don't know if they make 'em any more, but I have two. The last time one came out of my drawer was when one of my kids wanted to accessorize to dress up for "Nerd Day" -- part of "Spirit Week" in high school. He came home complaining that nobody knew what it was. :eek:

I can't remember the last time I touched a plotter. :(

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Quote:

Originally Posted by fludy12 (Post 75067)

Figure out how to use a basic plotter or get a better ground school and/or a new CFI.

My CFI is an FAA Examiner. I think he's pretty well qualified to teach the material. I was simply trying to get a head start on my studies. ;)

DG's from the early 60's

In the mid 60's General Aviation Manufacturers ran out of the old Barrel type DG's from WW II (believe they had H J Heinz imprinted on the face plate) and went to the new vertical card DG. You had to turn away from the heading to arrive at a new heading on the old Barrel type DG. Try flying the old Barrel type DG and you will realize how lucky we are today.

Also in the late 60's: Aero Commander, Beech, Cessna, and Piper went with the "T group" 6 pack instrument panel and attitude instrument flying was much easier to teach.

Cub