An angel at my pad (Keck hospital rooftop crash)
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Join Date: Apr 1998
Location: Mesopotamos
Posts: 1,434
An angel at my pad (Keck hospital rooftop crash)
Thankfully no injuries and the organ they were transporting was still useable.
Thankfully it didn't fall off the building.
Anyone know how it ended up on its side?
https://www.dailynews.com/2020/11/06...pital-helipad/

Thankfully it didn't fall off the building.
Anyone know how it ended up on its side?
https://www.dailynews.com/2020/11/06...pital-helipad/

Join Date: Sep 2017
Location: Canada
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Avoid imitations
Join Date: Nov 2000
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I'd agree that looks like a T/R drive failure at the most critical stage of the landing. Looks like a quick and correct response by the pilot, namely by lowering the collective, bearing in mind there was little or no time to shut down the engines. Quite interesting to see how rapidly it rolled!
Glad to hear they all survived.
Glad to hear they all survived.
Join Date: Jan 2006
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Avoid imitations
Join Date: Nov 2000
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Sure that this was a TR drive failure? I saw a longer video of the approach and the TR RPM didn't change during final and beginning of the rotation .
As per the previous post, the aircraft are totally different types (169 versus 109) and their tail rotor control systems are totally different.
Join Date: Oct 1999
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Avoid imitations
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Location: Wandering the FIR and cyberspace often at highly unsociable times
Posts: 13,032
One other “gotcha” on this type is that out of the two hydraulic systems, only #1 boosts the yaw servo. If #1 hydraulics drop off line, servo assistance is lost and the pedal feedback forces can be very high. It’s then very difficult to apply enough “boot” to keep the aircraft straight at low speed. The normal way to land in that condition is a running landing at about 30 kts, ideally with a crosswind from the left.
Join Date: May 2016
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Having carried out a ‘Check A’ on the 109 every working day for the last decade and a half and having over 3,000 hours on type, I do have some idea of how the thing is put together.
One other “gotcha” on this type is that out of the two hydraulic systems, only #1 boosts the yaw servo. If #1 hydraulics drop off line, servo assistance is lost and the pedal feedback forces can be very high. It’s then very difficult to apply enough “boot” to keep the aircraft straight at low speed. The normal way to land in that condition is a running landing at about 30 kts, ideally with a crosswind from the left.
One other “gotcha” on this type is that out of the two hydraulic systems, only #1 boosts the yaw servo. If #1 hydraulics drop off line, servo assistance is lost and the pedal feedback forces can be very high. It’s then very difficult to apply enough “boot” to keep the aircraft straight at low speed. The normal way to land in that condition is a running landing at about 30 kts, ideally with a crosswind from the left.