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Mooney 201 lands on high power lines in MD


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1 hour ago, whiskytango said:

I am wondering if, at the last moment before impact, the pilot saw the transmission lines, pulled back on the yoke, dissipating airspeed / kinetic energy, so that the impact was relatively low energy?  That could make the deceleration a lot more survivable. 

Sorry but not likely to matter much. You should go try snap rolls with an acro pilot and see how much energy is dissipated.

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2 hours ago, aviatoreb said:

Can’t imagine hung up like that scared injured progressively hypothermic and probably in shock.

I read a report this evening that said their worst injury was from the cold.

Go Mooney!  Love that steel cage! And one-piece wing!

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I thought becoming incapacitated in the dead of winter by CO, passing out, plane crashes in a field and you are able to find a house in subzero temps and save yourself would never be beaten in the Miraculous Mooney survival incidents.

It is NOW number 2 on the list.

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32 minutes ago, Hank said:

I read a report this evening that said their worst injury was from the cold.

Go Mooney!  Love that steel cage! And one-piece wing!

I just read that too - and furthermore I just read that one of them was already just released from the hospital.  WOW.

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6 hours ago, aviatoreb said:

That is what I was thinking - could he have incorrectly set the altimeter?  He was way low way far out.

That said - what the heck was he doing flying in that in the first place?  But once he was there near KGAI in below mins conditions - what the heck was he doing trying the approach anyway - were all the nearby airports below min too?  KFDK is very nearby and has better approaches, a bigger airport environment, tower and multiple runways.  Or heck - Dulles and BWI in a pinch - or just fly somewhere else entirely but I do not know the fuel status.

I am a Professor in a department of electrical engineering and several of my colleagues are power transmission specialists.  I was talking to one of the profs who is also a pilot - and we were just talking how amazingly unlikely this accident was a survived outcome.  First - how many controlled flight into terrain accidents in night low ifr conditions are survived.  Almost none.  Obviously he found a nice springy metal tower with cables that arrested them from 100kts to zero in short order like a carrier landing but maybe more abrupt.  I wonder if he had airbags.  

But here are the miracles - 

-they found a springy tower instead of a hard building or the ground or a hillside or a big tree.

-the springy tower actually caught them at the right spot so they were decelerated sufficiently but not too strongly to break the humans inside but not too springy to bounce them off so they would fall backwards 100ft to the ground.

-here is the part that amazed the power transmission engineer I was talking too - he told me exactly the voltage and capacity of that specific tower just by looking at it and he declared it a miracle that the entire airplane structure didn't just melt/dissolve/catch on fire - I mean aluminum on fire not to mention fuel - somehow it didn't arc etc.  Yeah the birds landing not grounded  thing but they are tiny plus dont touch the tower structure itself.

-the tower didn't collapse in which case they would have been mechanically crushed and electrically fried simultaneously. 

I would guess if this was a computer simulation you could crash this airplane a thousand times and none of them would end up with this outcome - even if you crash it into the tower - something lined up just right to make everything work.

This is what collapsed towers look like - an incident of an ice storm overloading their weight in 1996 I think near Montreal.

https://www.inmr.com/looking-back-on-the-great-ice-storm-of-1998/

So overall a miracle these guys are alive and also the weirdest survived accident we are likely to ever see.  

I didn't really think about the voltage. I counted 18 disks on the suspension insulators so probably 230kV. Really lucky not to have gotten across phases. 

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12 hours ago, 201er said:

After all this, the cabin and baggage doors still functional!

1532DCB8-2EAE-42D7-B9D9-858B0D99A423.jpeg.849fac5778bb0c9039dd9f335ce17844.jpeg

A little duct tape and bonds it should be good to go. :D

Amazing what properly designed load paths around the pax compartment will do.  I have a Fiat 500 Abarth.  A few months before I bought, but joined on line forums to research, a person posted that driving down a street at about 35 MPH, her was hit by a Suburban and driven into a parked pickup truck.  After the collision, both doors would open, shut, and latch.   The 500 has 3 load paths around the pax comparment

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11 hours ago, Shadrach said:

Sorry but not likely to matter much. You should go try snap rolls with an acro pilot and see how much energy is dissipated.

A good bit.  Try multiple snaps a lowered powered plane. :D

And energy is proportional to velocity squared.  So even a small amount of speed reduction greatly reduces the energy a lot

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4 hours ago, Pinecone said:

A little duct tape and bonds it should be good to go. :D

Amazing what properly designed load paths around the pax compartment will do.  I have a Fiat 500 Abarth.  A few months before I bought, but joined on line forums to research, a person posted that driving down a street at about 35 MPH, her was hit by a Suburban and driven into a parked pickup truck.  After the collision, both doors would open, shut, and latch.   The 500 has 3 load paths around the pax comparment

We sold the Abarth a few months before our first child was born.  It was my wife's commuter and was bought to replace her precious Cooper S.  It never lived up to my expectations in terms of efficiency but made up for it in spades by exceeding every expectation when it came to fun.  Very solid little car that people will still be talking about in 50 years. I still miss it after 7 years.

AD6F8E04-6A68-4E30-8437-57C8A6D768F5.thumb.jpeg.37c912d7cf7a17d4071057cb95302bf8.jpeg

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4 hours ago, Pinecone said:

A good bit.  Try multiple snaps a lowered powered plane. :D

And energy is proportional to velocity squared.  So even a small amount of speed reduction greatly reduces the energy a lot

Perhaps I am talking out of school. I've only done snap rolls in a Stearman with an instructor leading me on the controls.  Yes there was some energy loss but not as significant as I expected.  They were rapid maneuvers that ended crisply on track. The first few times, the maneuver was over long before my brain had finished processing the inputs.  Entry speed was around 90kts. I don't recall speed being degraded significantly...but then that's power on and in an airplane that is very draggy no matter it orientation.

My point was that a split second, reactionary yoke yank as the windshield fills with steel is not likely to do much except alter the impact attitude slightly...which may or may not be helpful.

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Here is the position and distance from the runway where the plane impacted the tower vs the straight in approach. The lower line is the straight in and the upper line is the distance to the impact site.

GAI-Course.jpg.593aa6a8d975f2afabd7fdccfed8e71e.jpg

My understanding is that the minimum crossing altitude at JOXOX is 1280ft at 2.4nm from the runway. Given a TDZE of 520, at 1.2 miles the altitude on glidepath should be 900ft which is 380ft AGL. This is 111ft above minimums of 789ft MSL which won't be reached until a bit closer to the runway.

Perhaps someone with some math skills can share with us at what exact altitude the airplane should have been at this position 1.22 miles from the runway given the approach profile. And what kind of deviation one might expect on the CDI and glideslope in such a position. Are we talking about one dot off or major deflection?

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26 minutes ago, 201er said:

Here is the position and distance from the runway where the plane impacted the tower vs the straight in approach. The lower line is the straight in and the upper line is the distance to the impact site.

GAI-Course.jpg.593aa6a8d975f2afabd7fdccfed8e71e.jpg

My understanding is that the minimum crossing altitude at JOXOX is 1280ft at 2.4nm from the runway. Given a TDZE of 520, at 1.2 miles the altitude on glidepath should be 900ft which is 380ft AGL. This is 111ft above minimums of 789ft MSL which won't be reached until a bit closer to the runway.

Perhaps someone with some math skills can share with us at what exact altitude the airplane should have been at this position 1.22 miles from the runway given the approach profile. And what kind of deviation one might expect on the CDI and glideslope in such a position. Are we talking about one dot off or major deflection?

A 3 degree GS (as it's shown in the approach plate) is around 300ft per nm. That makes around 320ft at 1.22sm. Considering that this path cross the threshold at 40ft, you're talking about 520 (TDZE) + 40 (TCH) + 320 (GS) = 880 MSL at 1.22sm. That's if your are right in the center.

I understand that LPV has same sensitivity when close to the runway as ILS. A full scape deviation is 0.7. In that case, right at full scale deviation below GS, we are talking about 520 (TDZE) + 40 (TCH) + 230 (GS@2.3 degrees) = 790MSL.

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7 hours ago, Shadrach said:

We sold the Abarth a few months before our first child was born.  It was my wife's commuter and was bought to replace her precious Cooper S.  It never lived up to my expectations in terms of efficiency but made up for it in spades by exceeding every expectation when it came to fun.  Very solid little car that people will still be talking about in 50 years. I still miss it after 7 years.

AD6F8E04-6A68-4E30-8437-57C8A6D768F5.thumb.jpeg.37c912d7cf7a17d4071057cb95302bf8.jpeg

How so on efficiency? On the all seasons I run about 36 MPH average and about 33 on the Performance tires.

And SUPER low maintenance.  I have replaced a few bulbs, one set of each type of tires, one set of brake pads (fronts probably are getting needy), one battery, and had to have the winter wheels (stock 16” Abarth wheels) refinished.  10 years 92K miles

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