Chipmunk nearly didn't have a wing or a prayer

[treadigraph]

https://twitter.com/fl360aero/status/1589121628948287489?s=20&t=qbhIQydm65RvdJing-qQaw


https://aviation-safety.net/wikibase/300562

[Locked door]

Wow. That’s a strong aeroplane but you don’t get much closer to dying.

[DaveReidUK]

The crowd didn't look like they were expecting an aerial display ...

[treadigraph]

He is obviously de master pilot locally...

[luckyrat]

To be fair that mast was probably difficult to see, unlike the big red and white control caravan hit by a fellow Chipmunk student on landing at Middle Wallop in 1983 during an Army Air Corps pilot’s course!
No serious injuries. I do recall saying to my instructor…….. no wonder I’m crap at landing I didn’t realise that caravan was the aiming point!
ironically it’s where the instructor stood in to watch you do your first solo…… I think mine watched me do my first solo from one of the old air raid shelters….😹😹

[First_Principal]

Hopefully the spectator injuries weren't too serious, presumably from falling debris...

In terms of the 'plane it looked to me as if there was quite significant deformation at the rhs wing root? I don't suppose it'd be easy to find any subsequent repair detail, but the engineer in me would like to know more about the extent and nature of the damage.

Otherwise I did wonder if perhaps it was part of a new upcoming Star Wars prequel, given that "The aircraft force landed safely. " :}

luckyrat well told story 👍

[treadigraph]

Seems he missed the aerial and caught a guy wire from underneath. Very lucky it wasn't worse... wonder what the Argentine authorities will have to say?

[EddyCurr]

When I scroll back and forth at the moment of contact, I see the wing connecting with the antenna itself - a VERY short distance from the top of the mast.

A few inches separated joy and despair. A shorter mast, more altitude, or a steeper bank and this fly-past would not have been a story.

I wonder whether that was a permanent mast or a temporary event broadcast fixture.

[JanetFlight]

If right aileron was destroyed/vanished how he managed to turn and return safe to the field?
Or did he landed right ahead?

[Locked door]

In these pics you can see the forward wing attachment bolt has failed.

https://twitter.com/fl360aero/status/1589122379619651584/photo/1

[India Four Two]

I am amazed that wing stayed on. Given the damage to the right aileron, I wonder if the pilot had any primary roll control or did he have to use the rudder?

[fdr]

I am amazed that wing stayed on. Given the damage to the right aileron, I wonder if the pilot had any primary roll control or did he have to use the rudder?


Guys need to go buy themselves a beer for that one. The aileron and wing loss, the roll would have been to the right from the area, but the wreckage of the wing tip is adding a left roll moment, as a fluke of the failure. These guys would have had a sick aircraft but probably not like a certain IDF F-15 without a RH wing. That RH wing on the hippie is not far away from failing completely, some days are luckier than others.

[luckyrat]

I managed to find the information from the caravan incident to which I referred in my previous post.
It was actually the instructor flying it as a demonstration flight with a student on board….. 🙀
I still think the original plan was to land on the grass near the caravan, not actually on it……..😹

https://cimg0.ibsrv.net/gimg/pprune.org-vbulletin/2000x170/213148da_859d_4582_8887_b2bc7f0a5fcc_a8c3c3483dcd81a04faed8f 23f040ffd583b1995.jpeg

[sandringham1]

In the video clip you can see the whole wing deflect rearwards at the point of impact, I suggest the rear spar structure collapsed under compression at that moment while the forward spar carry through has deformed back, the wing then stayed like that hence the gap at the leading edge fuselage junction.

[ehwatezedoing]

Worst pole dance I ever seen :=

[sycamore]

Anyone any idea what the original reg number was,as it may have been ex-RAF,as it was the oldest Chippy flying...?

[treadigraph]

Sycamore, it's the third off DHC's production line at Downsview in 1946. Hatfield production started in '49.

[luckyrat]

I managed to find the information from the caravan incident to which I referred in my previous post.
It was actually the instructor flying it as a demonstration flight with a student on board….. 🙀
I still think the original plan was to land on the grass near the caravan, not actually on it……..😹

https://cimg0.ibsrv.net/gimg/pprune.org-vbulletin/2000x170/213148da_859d_4582_8887_b2bc7f0a5fcc_a8c3c3483dcd81a04faed8f 23f040ffd583b1995.jpeg

possibly what actually happened that day ?


https://cimg0.ibsrv.net/gimg/pprune.org-vbulletin/2000x1563/a397079b_c2e6_406e_87d2_05880c62c1f1_3d7449606b3409f1c5c270b 6da0692789d57a42c.jpeg

[megan]

Wing failure as experienced by Neil Williams in a Zlin, wing folded up so rolled inverted to keep the wing in place, flew approach inverted and rolled upright at the last moment.

https://www.orlita.net/hangar/GAWAR.pdf

[India Four Two]

Here’s a picture of the left wing and fairing from an RCAF Maintenance Manual:
https://cimg2.ibsrv.net/gimg/pprune.org-vbulletin/1700x2000/4edab9bb_e65d_4ea0_9708_0e99de3e7fc4_0216d42c28350053a723db8 d56084c0311d70769.jpeg


You can see the two-bolt mainspar attachment (A - enlarged at the top left) and the drag fitting (5,6,7,8) towards the end of the D nose.

I assume 33 is the rear spar attachment.

[fdr]

A memorable day fro the drivers. The fwd attachment fails in overload, the aft attachment point to the inboard wing root rib crushes, and the wing remains on as the main spar wing to carry throughs structure bends without breaking. That is a neat trick, good choice of materials. A ~13' lever arm and force is persuasive to aircraft structure.Force transfer was reduced through the progressive failure of the wing tip, frangible tips are handy to have.

[Fargo Boyle]

https://youtu.be/_3N65EMji-g

Looks like he was an accident waiting to happen - here's an earlier pass on the same display. Don Bullock mk2...

For those who can't see embedded videos (like me, why, mods?) the youtube link is _3N65EMji-g copy and paste into the YT search window

[oldbeefer]

https://www.youtube.com/watch?v=g0KJUDlQ3Eg