Single Eng Climb Gradient

[sninerniner]

Got a technical question for those multi instructors out there.

Single Engine Climb gradient is expressed as a percentage. Why and what is it a percentage of?

3.3percent equals how many feet per nm?
3.3percent equals how many feet per minute
Assume a climb of 120kts.

Appreciate any help.

Thanks

[leardvr]

Take the climb gradient of 3.3= 198'/6000 (that's the TERPS 6000' simplified mile) It's basicly rise over run x/6000=3.3% or x=.033*6000. The answer is 198'/nm

3.3*120(Ground speed)=396fpm

Hope that helps