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Land Immediately VS Land ASAP





Land Immediately VS Land ASAP  

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Author: Gimme a list!   Date: 7/31/2021 5:47:37 PM  +1/-0   Show Orig. Msg (this window) Or  In New Window

So the 2 "explanations" I hear the most, and what has been proposed so far in the replies, sound like either 1) both LASAP and LI aren't really much different; as in there is a slight bit more haste with LI - OR -  2) LI is basically "put it in the water/trees; i.e., controlled crash because it will fall apart in the sky anyway" (which I think is ludicrous).


 


MD puts it this way:





LAND IMMEDIATELY - Execute a power-on approach and landing without delay.


LAND AS SOON AS POSSIBLE - Execute a power-on approach and landing to the nearest safe landing area that does not further jeopardize the aircraft or occupants.


AIRBUS puts it this way:





LAND IMMEDIATELY- The urgency of landing is paramount. Primary consideration is to assure survival of the occupants. Landing in water, trees or other unsafe areas should be considered only as a last resort.


LAND AS SOON AS POSSIBLE (LAND ASAP) - Land without delay at the nearest adequate site (i.e. open field) at which a safe approach and landing can be made.


LAND AS SOON AS PRACTICABLE - The landing site and duration of flight are at the discretion of the pilot. Extended flight beyond the nearest approved landing area where appropriate assistance can be expected is not recommended.





 




BOTH say the word "landing" not crash.  The first says "without delay" and the second says "nearest safe landing area" (so the "without delay" infers to land in an unsafe landing area meaning possible aircraft damage; i.e. a crash). 


So what REAL scenarios would constitute a Land Immediately? - i.e. crash the helicopter (the only EP's that fall in this category are aircraft fire and XMSN chip/pressure/temp depending on the airframe manufacturer).


I mean, I got it: get it down out of the air so nothing falls apart on you when up in the sky.  But once you're near the ground (10 ft or less) after entering an autorotative profile to get down there safely... why don't they say milk it slowly to a safe place?


A fire can spread quickly or slowly... so crash the helicopter even though you may have had enough time to get down on the deck and fly low/slow (within safe HV curve points) to your "safe landing area"? 


Same thing with XMSN chip/press/temp... crash instead of fly low and slow (where even a total lockup or disassembly of the system means you're falling from safe height/speed and have same chance of injury as autorotating into trees/water?) when maybe that problem was going to not be a catastrophic mechanical problem for a few more minutes; enough for you to get to a safe landing area.  Just a thought...  


I was raised on Bell products and they only have 2 options: Land ASAP and Land ASA Practical.  I always thought Land Immediately was weird.  You either rush or you don't - Land ASAP or Land ASA Practical.  


 

 
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