Shawn,
I am not mixing anything.
I am just pointing out what the airworthiness code (european and american) requires:
[QUOTE CS 29.59 Takeoff Path: Category A
(a) The takeoff path extends from the point of commencement of the takeoff
procedure to a point at which the rotorcraft is 305 m (1000 ft) above the takeoff surface and compliance with CS 29.67 (a) (2) is shown. In addition:
(1) The takeoff path must remain clear of the heightvelocity envelope established in accordance with CS 29.87.[/QUOTE]
And this is logic because 29.87 establishes:
[QUOTE 29.87 Heightvelocity envelope
(a) If there is any combination of height and forward velocity (including hover) under which a safe landing cannot be made after failure of the
critical engine and with the remaining engines (where applicable) operating within approved limits, a heightvelocityenvelope must be established for:
(1) All combinations of pressure altitude and ambient temperature for which
takeoff and landing are approved; and
(2) Weight, from the maximum weight (at sealevel) to the highest weight approved for takeoff and landing at each altitude. For helicopters, this weight need not exceed the highest weight allowing hovering out of ground
effect at each altitude.[/QUOTE]
In other words the Cat A and the H-V requirements prescribe to carry out a safe landing after an engine failure.
The only difference is that H-V does not require to reject on the take-off area while Cat A requires.
By the way I have never seen in the Flight manual Cat A Supplement the statement you mention that H-V is not applicable to Cat A.
gmrwiz