Author Topic: Climbrate Question (Read 356 times)

frank3 · « **on:** November 25, 2003, 12:23:06 PM »

I always had this question in mind;

When climbing with 1000ft/min and at a speed of 150 mph, you get 1000ft higher in 1 minute, that's obvious.
But what if you were doing 250 mph, doesn't that get you 1000ft higher in less then 1 minute?
If this is true the climbrate meter wouldn't be correct would it?

ra · « **Reply #1 on:** November 25, 2003, 12:26:41 PM »

VSI reading 1000 ft/min = 1000/ft/min, no matter what your ASI is reading. They measure 2 different things.

hitech · « **Reply #2 on:** November 25, 2003, 12:35:18 PM »

VSI is the vertical line not the angle.
Redraw your diagram with 2 lines of the triange. One beeing speed the other vsi. Do it both for 150 and 250 and you will see the angle changes.

HiTech

OIO · « **Reply #3 on:** November 25, 2003, 12:38:33 PM »

the n1k FM revealed. awesome diagram man

(j/k)

frank3 · « **Reply #4 on:** November 26, 2003, 09:38:06 AM »

Ah! now I see, tnx chaps!

wow! I got a reply from HiTech!

frank3 · « **Reply #5 on:** November 27, 2003, 07:25:48 AM »

Btw, it was just a quick draw, didn't do any measurements to draw it