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Aug 10, 2019 at 0:39 history edited Vikki CC BY-SA 4.0
Fixing spelling.
Oct 8, 2018 at 18:58 comment added Michael I've never seen a helipad in real life that has any room to do anything other than a max performance take off (or landing along roughly the same profile) but this may be because all of the helipads I have seen have been at places like hospitals...
Nov 28, 2015 at 2:29 comment added curious_cat @simon Isn't 50 knots 92 kmph?
Nov 27, 2015 at 19:53 comment added Simon @curious_cat Where did you get 100kph from? Normal ops would never get to that speed before climbing. In most types, climb begins at 40-50 kts depending on density, weight and area profile. rbps answer is correct. Choosing a runway or a pad has nothing to do with the possibility of having to autorotate,
Nov 27, 2015 at 18:42 comment added rbp Picture: frazierlake.com/pics/1C9/… and map goo.gl/maps/CvwxwAAQ3y32
Nov 27, 2015 at 18:39 comment added rbp there are plenty of areas on an airport besides runways where normal departures can be done in the non-shaded areas of the H/V diagram, including taxiways and the grass between the runways/taxiways. I have even "landed" and "taken off" from Frazier Lake's water runway in a copter equipped with emergency pop-out floats.
Nov 27, 2015 at 17:10 comment added curious_cat @Simon Right, but if you take the recommended take off profile you need to be doing close to 100 kmph at about 10 ft above the ground. The runway is one clearly safe place you can do this. If your helipad surroundings offer the clear area to do it, that's great too. That's why I had the part to my answer which clarified that you could get the same safe flight profile from a Helipad too but obstacle clearance is a must.
Nov 27, 2015 at 16:29 comment added Simon There is no difference in the take-off or landing profile to a runway or a helipad. Remember helicopters do not (except in a few scenarios) roll along the runway and rotate. They lift into a hover, accelerate in ground effect, gaining translational lift until about 45 kts, then climb. Same for helipads or runways. I can avoid the red areas landing on a helipad just as easily as I can landing on a runway.
Nov 27, 2015 at 16:17 history edited curious_cat CC BY-SA 3.0
added 329 characters in body
Nov 27, 2015 at 16:11 history answered curious_cat CC BY-SA 3.0