Calculating climb gradient?
 

I had a buddy who was recently asked on an interview to calculate a climb VSI for a climb gradient for a DP off of a jepp chart. Anyone have any idea how to do this? Any rule of thumb how to do this without the table?

I believe jepp includes a climb gradient table. I know the FAA charts have a table in the back.

Thanks.

calculating climb gradient
 

Ground Speed/60 will give you your miles/min..multiply that by the ft per NM in the DP and there you have it!

There you go. </thread>

You can also use the E6B computer. Set the Rate (60) under your ground speed. The outer side will read your feet per minute climb, and the inner scale will read your feet per nautical miles. Hope that helps.

If I may ask (and if you know) what was he interviewing for?

When gradiënt is given in percentage as usually is in climbs, simple groundspeed times percentage!

Climb gradient is 3.3, gs approx 160, required vs is roughly 520

I like using the units and
120Nautical Miles (nm) per 1 hour = 120nm/ 1hr
or 120nm / 60minutes(min) which equals 2nm / 1min
Required climb gradient for the Pitkin four out of KASE = 500ft/1nm
ft/min required = 2nm/1min * 500ft/nm
=
2nm * 500ft
------------
1min * 1nm

equals 1000ft/1min
note the nm cancel out and you're left with ft/min as your units.

Of course you're flying a part 25 aircraft and ahh screw it, if we lose one we'll just go visual down to Rifle. . .

2nd segment enforcement?
 

Has anyone, non part 121, DIRECTLY been involved with an enforcement action (investigation) regarding OEI climb requirement calculations?

Anyone?

Can't help you there but this video may help you clear up some misinformation:

TAPP Working Group Video (Part 1 of 4): Planning For Takeoff Obstacle Clearance

Those videos are great, not 100% sure but I think they are applying 135 "requirements".