OBN, if I'm "wrong", how do you explain this:
From CAO 20.7.1b:
APPROACH CLIMB PERFORMANCE
9.1 For paragraph 5.1 (b), the approach climb requirements are met if, in the
approach configuration with the critical engine inoperative at a speed not more than 1.5 VS, an aeroplane has a gross gradient of climb of at least:
(a) for a twin-engined aeroplane — 2.1%; or
(b) for a 3 engined aeroplane — 2.3% or
(c) for a 4 engined aeroplane — 2.4%.
10 LANDING CLIMB PERFORMANCE
10.1 For the purposes of subparagraph 5.1 (c), the landing climb requirements are met if, in the landing configuration an aeroplane has a gross gradient of climb of not less than 3.2% at a climbing speed not in excess of 1.3 VS with all engines operating.
