PPRuNe Forums - View Single Post - Category A Takeoff: Background
View Single Post
Old 31st October 2018 | 21:53
  #54 (permalink)  
helicrazi
15 Anniversary
 
Joined: Dec 2007
Posts: 595
Likes: 58
From: UK
Originally Posted by nigelh
Floater .... I don’t understand how slowly reversing can be less in the avoid curve than pulling vertically and transitioning to SE climb away ASAP ? Surely every knot of forwards speed you get takes you closer to getting out of the avoid ?? ( and in the same logic reversing would make the normal avoid larger , ie higher than a normal hover as it will take valuable seconds and feet to arrest the backwards speed before initiating a nose down attitude to pick up speed ??) I am not saying you are wrong, but to my mind I would feel happier getting to the speed I could at least maintain altitude as soon as possible . I also think that logically the time it would take to drop the nose and pick up some speed would double if you were going backwards with nose up rather than a flat hover ?
I think I must be misunderstanding something ....maybe the powers that be consider the downside of reversing ( which there really must be ) are worth taking for the upside (??) of being able to see your take off spot during the climb .... ??
so in this scenario in a stadium, how do you prpose to depart whilst maintaining a safe landing area? if you elected to transition forward without the reverse, before tdp you need a reject oei, that might take you into the seating area. After tdp oei you won't have the climb performance to clear the roof.

the profile flown gives you a safe landing area before oei before tdp, you drift down to where you started, oei after tdp you have sifficient height to transition and clear the roof
helicrazi is offline  
Reply