King Air down at Essendon?

[43Inches]

KADS crash: diverging left very shortly after liftoff.
YMEN crash: very similar.

The only similarity I see with those two accidents is the left deviation of horizontal tracking. The KADS crash the Kingair is quite clearly banking over to inverted in the pictures available, highlighting an uncontrolled yaw/roll. The YMEN accident the aircraft is maintained wings level showing a significant amount of control prior to impact. I would assume, that if the pilot at YMEN had full right aileron but also left rudder, which would be a coordination exercise in itself, the aircraft would have similarly lost lateral control as well and rolled. This would be only be worsened by actual power loss on the left side, which would have made an uncontrolled roll inevitable, which did not happen.

[Xeptu]

Originally Posted by Lead Balloon

Have you any first-hand experience, either in the simulator or the aircraft, of flight with the rudder trim set to full nose left deflection and both engines delivering maximum thrust?

In answer to the question, the higher the airspeed the greater the rudder load, Whether it be one engine at flight idle or full opposite rudder trim at takeoff power and 140 knots will require full opposite rudder, in my opinion holding that load on one leg without full rudder trim in the correct sense would cause muscle fatigue and failure in about 30 seconds. For a V1 cut excercise, 95kts, requires full opposite rudder, without rudder trim, I doubt your leg would make it to 140kts.

[Lead Balloon]

Thanks Xeptu.

[Xeptu]

Your welcome. Be aware there will be differences of opinion. I'm a 20.7.1b person and use claytons for takeoff performance procedure and terrain clearance departure procedures. Those that have had no exposure or knowledge of that will have a different technique more akin to the normal cat procedures, yes I know those terms have changed, I'm old.
Unless you are briefed by those in the know while climbing to 400ft at V2, it takes quite a few times to get your head around "it's ok you can relax your leg now the rudder pedal will stay there. it buffets a bit and it's a weird un-natural feeling. Rudder boost in all cases is nothing more than a stand on this one.

[Cloudee]

Coronial investigation in this accident is finally underway.

https://www.abc.net.au/news/2021-09-...ring/100480126

[Squawk7700]

Not sure if you’ll be able to read this behind the paywall:

https://www.theage.com.au/national/v...16-p5dojv.html

Seems the airport owner allegedly didn’t follow guidelines when building a shopping centre next to the runway. Who would have thought?

[Clinton McKenzie]

The ATSB investigation details a 2003 email it uncovered, in which an Essendon Airport management officer advised that CASA had agreed verbally to the airport applying a strip width of 180 metres rather than 300 metres.

“This should open up about 36,000 square metres of new land for development,” the email says.

Essendon Airport relied heavily on a letter from a CASA officer confirming that interpretation a month later, but CASA told the ATSB investigation that advice was wrong and had no legal validity.

This is another example of CASA apparently ‘disowning’ responsibility for its own officer’s inconvenient actions.

It appears that the only way in which to have confidence that anything written by any CASA officer is CASA’s position is to write to the CEO and seek confirmation that the CEO acknowledges and accepts that what the CASA officer said is CASA’s position.

[Mach E Avelli]

Originally Posted by Squawk7700

Not sure if you’ll be able to read this behind the paywall:

https://www.theage.com.au/national/v...16-p5dojv.html

Seems the airport owner allegedly didn’t follow guidelines when building a shopping centre next to the runway. Who would have thought?

The airport owner (and CASA, if implicated) will argue that the buildings had no influence on the outcome of the King Air crash. In this particular case they would be right, but it was sheer luck that no one was there on the ground to get hurt.
If a heavier bizjet plows into the shopping centre and kills a dozen or two seeking some retail therapy, Essendon Airport will close overnight. It will briefly open for ferry flight take-offs only. CASA will claim to have eliminated the risk.
The developers will circle like sharks, hangars will become trendy apartments, and the runways will make very convenient parking areas for new high rise buildings.
How to destroy valuable aviation infrastructure 101.

[runway16]

There are two sets of rules. One for some and one for the others. In regard to Essendon it would appear that the development extended far beyond the original boundary from the runway.
By the time anyone realised what was going on it was too late to pull the concrete up.
R

[43Inches]

Originally Posted by Mach E Avelli

The airport owner (and CASA, if implicated) will argue that the buildings had no influence on the outcome of the King Air crash. In this particular case they would be right, but it was sheer luck that no one was there on the ground to get hurt.
If a heavier bizjet plows into the shopping centre and kills a dozen or two seeking some retail therapy, Essendon Airport will close overnight. It will briefly open for ferry flight take-offs only. CASA will claim to have eliminated the risk.
The developers will circle like sharks, hangars will become trendy apartments, and the runways will make very convenient parking areas for new high rise buildings.
How to destroy valuable aviation infrastructure 101.

I completely agree there, the horse has already bolted. Any push to remedy the boundaries will result in no change to the shops and more restrictions on Aviation, and push Essendon closer to a shut down date. Australian politicians will never push back on developers, the pollis involved might 'take one for the team' and resign or spend a few night in min security hotel or even just be told they have been bad and nothing else, like a recent 'very corrupt' but 'we won't do anything about it' ex NSW elected.