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View Full Version : Chart for Rate of Climb VS Groundspeed VS Climb Gradient

lion-g
29th Mar 2010, 13:17
Hi Guys,

I tried searching for this chart online for the whole evening but to no avail. Can some kind souls provide me with the URL or can email me directly a softcopy ?

Thank you very much.

Cheers,
lion-g

aterpster
29th Mar 2010, 16:24
Jeppesen has such a chart in their terminal legend pages. It's called "Gradient to Rate Table."

rudderrudderrat
29th Mar 2010, 17:52
Hi,

lion-g
30th Mar 2010, 02:52
HI guys,

Thanks for the reply. In fact I was looking for the one where there's 3 vertical scales (G/S, Climb Gradient, Rate of Climb). We will have to use a ruler to join 2 components to determine the last.

Any luck with that ?

Thanks a lot.

Cheers

30th Mar 2010, 03:52
A simple rule of thumb is.

Climb rate = Gradient (%) x Groundspeed.

So for example if you want to achieve a 5% gradient at 180kts G/S you need to climb at 900 fpm.

Another one, if you need to change your altitude by xxx feet/mile multiply that by your speed in miles per minute and the answer is feet per minute.

feet/mile x miles/minute = feet/minute. Up or down.

e.g. you want to lose 3000' in 10nms or 300ft/nm at 180kts (3nm/minute) descend at 900fpm.

Is this any help?

Regards,
BH.

selfin
30th Mar 2010, 04:42
ICAO Doc 8168 Volume I, figure i-3-1-3, "conversion nomogram."

PDF extract available on request.

http://img140.imageshack.us/img140/7582/nomogramicao2b.th.png (http://img140.imageshack.us/i/nomogramicao2b.png/)

Pugilistic Animus
31st Mar 2010, 20:22
an E6B flight computer will do it as fast as you can move your thumb:ok:

hot_buoy
1st Apr 2010, 15:18
http://www.airservices.gov.au/publications/current/dap/GINTA01-101.pdf