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S3E2 Hawker Typhoon Tail Failures 

Hawker Typhoon - Typhoon Legacy Co. Ltd.
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While working on the transport joint for JP843, it seemed worthwhile to provide some detailed information on an aspect of Typhoon service history that is often discussed, but rarely understood. This new episode covers some of the modifications imparted on the Typhoon airframe, specific details, and information on the solution to the tail failures. We also look directly at the impact of these modifications to JP843, and details on production of the transport joint through a material forming process known as Stretch-Forming.
typhoonlegacy.vhx.tv/
For all of the extra details, shop updates and interactive forums (or just to see our episodes early and commercial free), please consider supporting the project by subscribing to our paid channel (link above), every penny goes directly into the airworthy rebuild of Hawker Typhoon JP843!
Hawker Typhoon JP843 is a British designed aircraft of the Second World War, originally intended as a fighter / interceptor, but ultimately ending up excelling as a ground attack aircraft. The Typhoon was the Royal Air Force's ( RAF ) first 400mph fighter, and although it had troubled development in its early years (partially due to the massive Napier Sabre sleeve valve engine that had been pushed into service), it came to be one of the premier ground attack aircraft of the war, scourge of the Wehrmacht and the Luftwaffe alike; excelling through D-Day, the Normandy campaign, and the Allied advance through Europe and VE Day.
While there were many nationalities of pilots and crew involved in Typhoon operations, the primary operators of the Hawker Typhoon were:
Royal Air Force ( RAF )
Royal Canadian Air Force ( RCAF )
Royal New Zealand Air Force ( RNZAF )
Royal Australian Air Force ( RAAF )
Hawker Typhoon JP843 served with 197 Squadron RAF, 198 Squadron RAF, and 609 Squadron RAF between September of 1943 and July of 1944. She was lost, along with her pilot, Peter March Price, RNZAF on the 27th of July 1944 in the battlefields of France.
The development of the Typhoon led to the Hawker Tempest V, which outperformed the Typhoon. Due to this, and the end of World War II, the Hawker Typhoon was quickly scrapped and replaced, with only one example of over 3300 surviving. This example, Hawker Typhoon MN235, only survived by chance after being sent to the United States Air Force ( USAF ) for evaluation during the war. With approximately 9 hours of flight time, the USAF crated the Typhoon and stored the aircraft with many others. Eventually becoming an asset of the Smithsonian, the Typhoon was traded back to the UK's RAF Museum Hendon in 1968 for a Hawker Hurricane.

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4 июл 2024

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Комментарии : 103   
@merlin51h84
@merlin51h84 Год назад
I know it's been discussed before but it still is unfathomable that the UK Typhoon project refuses to work together with your project. Such a waste in duplication and time. Just so they can claim they are building the only viable airworthy Typhoon in the world. Anyway, that being the case you are doing a brilliant job and wish your project all the very best. I'm confident you will eventually get your project up and in the air as well Ian.
@flyingcod14
@flyingcod14 9 месяцев назад
That is disappointing, I am a member of the RB396 project, shame people's egos get in the way of knowledge sharing. The more airworthy Hawker Typhoons the better.
@wdguild1
@wdguild1 Год назад
Hi Ian the whole series about JP843 is just awesome and your dedication and expertise is beyond description along with that of your sponsors. Please keep up the great work, I await all episodes in the series with great interest. Regards from NZ.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you very much, glad to have you following! ~Ian
@davegreenwood1663
@davegreenwood1663 Год назад
I admire your dedication and skill in this undertaking.And all the other people ,and firms involved.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Dave! ~Ian
@modelskunkworks
@modelskunkworks Год назад
Another fantastic episode, I have never seen the Typhoon tail issues explained as well anywhere before.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you! ~Ian
@mikepocock575
@mikepocock575 Год назад
The dedication you guys have is amazing,its lovely seeing your progress over here in the UK. Well done all of you.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Mike! ~Ian
@happyhome41
@happyhome41 Год назад
Extraordinary episode. So wonderful you have access to those resources in Canada, and have the bona fides to fabricate the all important tooling to facilitate the work with your industrial partners. I was fortunate to witness the fabrication of a wing box carry through for the B-1 bomber, made from a block of titanium - was shaped with C&C controlled cutters. Just amazing to see the modern equivalent of the Great Pyramids and the Great Wall of China, being built today. I wish I had the money. Thank you for sharing.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
There are some amazing companies with people wanting to help! An interesting note on the B-1 wing box, I saw a similar titanium forging for the F-35 and my jaw dropped, amazing! ~Ian
@mtacoustic1
@mtacoustic1 Год назад
Great to see you continue your Typhoon construction series! The detailed description of solving problems and the construction process is fascinating! It acknowledges that the design and construction of a good aircraft is so much more than just riveting a bunch of parts together!! I'm now curious how Focke-Wulf designed and constructed the rear fuselage plug for their FW-190D; in a similar location to the Typhoon.
@johnbradshaw354
@johnbradshaw354 Год назад
Great work Ian! starting to take shape. Thank you for sharing this most important airworthy rebuild.
@brycenew
@brycenew 11 месяцев назад
This video has excellent content & delivery, like this project! Go well with all aspects of it!!
@marklelohe3754
@marklelohe3754 11 месяцев назад
At Westland (now Leonardo) the back to back frame construction was common on Seaking & Lynx helicopters the extrusions were stretch formed on a Hurford machine.
@johncrispin2118
@johncrispin2118 Год назад
Ian, Many thanks for your excellent exposition on the “fishplate “ problem “. The drawings and technical solutions etc perfectly explained the arguably unresolved Issue
@rochelleparker9575
@rochelleparker9575 Год назад
Fascinating processes Ian. Steve.
@radiationking9875
@radiationking9875 11 месяцев назад
I find it crazy that all this work and effort is being gradually made to bring a single aircraft to life when only 80 years ago they were making multiple daily. The only difference being the experience, parts and tooling is all gone. Basically relearning the whole process without instructions
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 11 месяцев назад
And in many cases the engineering drawings and original material specifications don't exist. ~Ian
@radiationking9875
@radiationking9875 11 месяцев назад
@@TyphoonLegacyCoLtd Of course that too, how each part needs to bare weight and stresses
@colinmartin2921
@colinmartin2921 Год назад
Greetings from the UK, it is great to watch the progress of this wonderful project.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Colin! ~Ian
@davidlawrencebanks4610
@davidlawrencebanks4610 Год назад
Great episode, nice to see you again. Keep up the good work buddy 👍👍
@clayz1
@clayz1 Год назад
I always loved the Typhoon. Never knew anything about tail failures and the unfortunate pilots who lost their lives flight testing or in combat, until this video. The skills required to build these parts is amazing. Good luck, keep at it. Thanks for uploading. New sub.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Great to have you following along! ~Ian
@timeslip9
@timeslip9 Год назад
Hi Clayz1, I have just left a comment for Ian regarding tail structural failure on the Hawker Typhoon, also mentioning our up and coming Typhoon video, which you may be interested in. Kind Regards, Gary
@andrewmarkland9411
@andrewmarkland9411 Год назад
Simply spectacular.
@tez4274
@tez4274 Год назад
Incredible work, just incredible.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you! ~Ian
@mirimar69
@mirimar69 9 месяцев назад
Great Job Ian. Great to watch
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 9 месяцев назад
Thank you very much!! ~Ian
@markcameron360
@markcameron360 Год назад
Brilliant presentation
@EffequalsMA
@EffequalsMA Год назад
Love your work, man and happy you are local to me here in the lower mainland. :)
@bigmac60
@bigmac60 Год назад
Nice to have a new video
@terrygreen4338
@terrygreen4338 Год назад
Really enjoyed the video cheers Ian 👍
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Terry! ~Ian
@cal-native
@cal-native Год назад
Sometimes the tooling is at least as beautiful as the finished parts - those laminated wood stretch-form blocks were a work of art! ☺️❤️
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
They are beautiful strong and have perfect form, I was really happy with them! ~Ian
@mikesmith7249
@mikesmith7249 Год назад
Hands down, this series is one of my two favorites on youtube. The other being the Bf-108 restoration over on Kermit Weeks channel
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Mike! ~Ian
@brycenew
@brycenew 11 месяцев назад
Mike are you following Neville Wheeldon’s video updates on the restoration / rebuild of Avro Lancaster NX611 ‘Just Jane’ to airworthy at East Kirkby, UK? That’s a fantastic project, albeit vastly different to this.
@mikesmith7249
@mikesmith7249 11 месяцев назад
@@brycenew Yes I am. I love that series. I look forward to his regular updates lol. The two I named are updated rather infrequently
@chrisbailey4254
@chrisbailey4254 Год назад
As usual just Wicked stuff Ian.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thanks Chris! ~Ian
@HeidiLandRover
@HeidiLandRover Год назад
Some impressive machinery on display there.
@timeslip9
@timeslip9 Год назад
Hi Ian Great informative video presented as usual in your natural and engaging style. My several times over promised Typhoon video special now looks set to go live on the 6th June ... so D-DAY in more ways than one. We have been adding to it the last few weeks and have made a few corrections regarding continuity. The Typhoon pilot featured was a member of 197 Squadron, so know you will relate to that, we have found out he was sadly killed due to tail structural failure on the Hawker Typhoon he was flying. Will be sending you the link to the video soon. Keep up the great work. Gary
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Great to hear Gary, I'm really looking forward to this one! ~Ian
@johndavey72
@johndavey72 Год назад
Thankyou lan.
@Daniel-S1
@Daniel-S1 Год назад
Thanks from England.
@deancooper5513
@deancooper5513 Год назад
thanks Ian I was wondering when you'd get to this point with the structural issues, and how you had planned to ensure your fine example makes it thru to airworthiness.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
I'm glad it was helpful. ~Ian
@tonyw6909
@tonyw6909 Год назад
Thanks!
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Thank you Tony! ~Ian
@simonpayne8252
@simonpayne8252 11 месяцев назад
Cant wait to see and hear a tiffy fly
@paramarky
@paramarky Год назад
Fascinating to see the processes involved Ian - thank you so much - however, i'm guessing all this was done in a simpler and more rapid way back in the war?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
I've not confirmed how the contractors produced these parts during the war, but they would have either been stamped or stretch formed. ~Ian
@davidelliott5843
@davidelliott5843 Год назад
It’s interesting that Mosquito (with a completely novel structure of moulded birch and balsa plywood) had very few structural failures.
@sugarnads
@sugarnads Год назад
Nothing novel about the mosquito. Its how aircraft ware made up until a few years prior to its design. Metal was new and only just really becoming common in fighter construction.
@David-yo5ws
@David-yo5ws Год назад
And more resilient to shrapnel and bullet strikes. They really had to protect the planes lamination's in humid/damp conditions though. They did lose a few pilots who did not give it full power on take off and it had some 'roll to the left' 'quirk' that had to be quickly corrected as well. If it had not been designed around a laminated wood construction, it would never have been built, due to the shortage of aluminium. (The Air Ministry would have cancelled the order.)
@adrianabbott4623
@adrianabbott4623 Год назад
I watched the bending process with interest. How do you account for the aluminium springing back slightly after bending? With my model making I always have to 'overbend' slightly at the ends of the part which sometimes causes the curve to distort slightly.
@tonym480
@tonym480 Год назад
In the operation shown in the video the material was in a fully annealed condition which means it is soft and easily formed to the required shape, followed by further heat treatment to relieve any stress that might lead to distortion. Really interesting episode 👍
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
While the material was annealed, there is still some springback (minimal), however the forms were designed to overbend by approximately 1.5 degrees. They were also built to form several inches past the required length, and clamped several inches past that again, ensuring the actual part was spot-on! ~Ian
@bobsakamanos4469
@bobsakamanos4469 11 месяцев назад
Good techical brief on the original Typhoon flaws and solutions. Why are you rebuilding with a 3-bladed prop? I thought the 4-bladed prop was key to reducing vibration?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 9 месяцев назад
The four blade propeller did reduce some vibration, however the three blade Typhoons were still in use until the end of the war. You will notice that all of the four blade Typhoons are newer aircraft with the larger tailplane; JP843 was originally built as a "car door" aircraft in September of 1943 and then modified. ~Ian
@flypawels
@flypawels Год назад
👍
@flyingcod14
@flyingcod14 9 месяцев назад
Good video and good luck with the build of JP843. Are you aware of Hawker Typhoon RB396 rebuild?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 9 месяцев назад
Thank you! We are aware of them. ~Ian
@briansteffmagnussen9078
@briansteffmagnussen9078 Год назад
It seems to be an laborius process to pull the shape to form. Especially when you think about when this was designed with the tools and knowlegde they had back then. There must be an reason behind why this was pulled instead of being milled from one solid block of material.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
You would need a multi axis machine to mill these parts given their shape, not to mention the machine / operator time and material waste. Machined parts of this shape would also have the grain cut which would reduce the part strength. Stretch forming produces repeatable accurate parts very quickly and keeps the grain running through the shape. ~Ian
@Tom-Lahaye
@Tom-Lahaye Год назад
A lot of tech involved with making these parts. But I wonder how it was done by Hawker back then, did they use pressed parts?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
They may have pressed them, but it is quite possible they were stretch formed then too. ~Ian
@69waveydavey
@69waveydavey Год назад
Just watched the video about the typhoon being restored at RAF Duxford, the guy said it would be the first fuselage to be built since the war. Do these people not research what other people are doing? Maybe we might see 2 flying typhoons before the next decade?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
A decade would be tight, but it sure would be nice to see two.... or more in the air! ~Ian
@janesimon-cw9rh
@janesimon-cw9rh Год назад
Just WOW from the UK
@simonpayne8252
@simonpayne8252 11 месяцев назад
So if i got it right, the build will be 3 blade prop, small tail but with latest tail mods as per tempest v and a retrofit mod bubble canopy. Will the powerplant be Sabre IIa or Sabre IIb spec ?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 11 месяцев назад
We are working with a Sabre VII to capture all of the lessons learned from Sabre II series operations. ~Ian
@simonpayne8252
@simonpayne8252 11 месяцев назад
@@TyphoonLegacyCoLtd Oh cool so plan is to have hobson injection with updraft air intake and make 3000 Hp with ADI ? 😂👍🏼
@robertnicholson7733
@robertnicholson7733 Год назад
Before I start a ramble, can you tell me what was the driving force for the resonant modes, was it in the documentation from Hawkers? Was it mechanical, i.e., the Sabre (although, to me, that seems unlikely) or aerodynamic? This must have occurred in many other aircraft, resonance being just a simple matter of mass, stiffness (compliance), damping, and the driving force. Now for the ramble. . I just have to say that this is really fantastic work, of course, it has to be, a pilot's life and the fate of the aircraft depend on it. The side benefit is the accumulation of knowledge that this work fosters. The British aircraft industry vandalized its own legacy. Some of the very rare stuff, such as prototype engines, was destroyed in the late 70s, or later. And the records, drawings, reports, etc., were just thrown out after moves, takeovers, mergers or extinction. The US, on the other hand, has kept so much. Bringing together and organizing all the knowledge that remains is a worthy task, you never know your luck, there may come a time when that knowledge could be used to build a new Typhoon, Tempest, or Sabre VII-powered Fury, we can but dream. Of course, for me, nothing beats the aggressive beauty of LA610 (except for VP207) when she was fitted with a Sabre VII, Sydney Camm's greatest creation, no history, but speed, for British piston aircraft, only the Hornet was faster. Compared to the Sabre VII Fury, the Centaurus Fury just doesn't come up to snuff. pbase.com/marauder61/image/55757158 pbase.com/marauder61/image/55757137 Now I wonder where you could find a Sabre VII to use as a template for a new engine, hmmm, I know, midnight visit to CASM! Just joking. Greetings from Oz.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
While I have no written confirmation on the root cause of specific vibrations which resulted in the nodes in question, I suspect the primary cause was do to the engine and its mounting. The early Typhoons suffered from extreme vibration problems which were noted as being painful for the pilots to sit in the aircraft; these vibrations were engine vibrations, and were transferred directly into the front spar cross member be the rear (solid steel) engine mounts. With the cockpit structure being all steel rigid tubular construction, it is easy to see how efficient the transfer was. Eventually rubberized engine mounts were added which helped, and the pilots seat was "sprung" to help isolate the pilots rear end. The vibrations were reduced, but never stopped. When the Tempest was designed, the main fuel capacity from the wing needed to be moved (new wing too thin), and a fuel tank was added between two firewalls in front of the cockpit; when they did this, the Sabre engine mounts were moved off of the primary structure leading to a massive change in vibrations. LA610, I agree, the top of the chain! We have a Sabre VII in the shop and will be working towards a reliable running VII.... why? Because it took all of the lessons learned from tens of thousands of Sabre flight hours and put them into the ultimate variant, strength, reliability and safety. ~Ian
@matthewkantar5583
@matthewkantar5583 Год назад
Anyone know why alder was chosen?
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
It helped keep the costs of materials down while still providing enough strength for the work being performed. ~Ian
@parrotraiser6541
@parrotraiser6541 Год назад
Any idea why Hawker came up with what looks like a Heath Robinson (or Rube Goldberg) contraption to prevent flutter? The problem is to keep the CG of a moving control in front of the aerodynamic centre, so it behaves like an arrow. The usual solution , as Ian said is a mass balance (a weight on a forward-projecting lever), or weighted leading edge. Both are cheap, simple, and effective, which Hawker's device clearly wasn't.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
My understanding is that they tried placing weights in the elevators, but this caused a stability issue. I've not been able to locate any additional details. ~Ian
@parrotraiser6541
@parrotraiser6541 Год назад
@@TyphoonLegacyCoLtd It sounds as though there's a Master's thesis topic in there, but I'm not sure if it's in History or Aerodynamics. :-)*
@davidelliott5843
@davidelliott5843 Год назад
It’s a shame you could not have made 4 of the special components. You really never know when they’ll be needed. Possibly one day, a brand new Tiffie/Tempest. Who knows.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
There are four parts that make up the transport joint, all different. We made two of each so we have two complete ship-sets of front and rear transport joint halves. ~Ian
@rudolfmouthaan7892
@rudolfmouthaan7892 7 месяцев назад
This was the era of high speed airplanes and the accompanying issues high speed causes on the frames. The p-38 lightning had similar issues.
@bigjumpalan7417
@bigjumpalan7417 Год назад
Hi, No one can imagine the amount of technology needed to fly this glorious warbird. It's prodigiously interesting, I understand the manufacturing process, but then you have to check that the parts conform to the plans and the specifications. The metal must not be cracked, what control methods do you use? Do you use ultraviolet light? I thank you and congratulate you on the work you are doing. Alain, I live in France. (Google translate)
@JohnSmith-ei2pz
@JohnSmith-ei2pz Год назад
NDT
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Hi Alain, both heat treatment and the forming process were completed to modern aerospace standards specific to each process. With this forming method there is no requirement for non destructive testing. ~Ian
@offshoretomorrow3346
@offshoretomorrow3346 Год назад
So horrible to lose all those lives, not in battle, but to a design fault.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Very true, the silver lining is that those sacrifices kept a program moving which undoubtedly saved many thousands. ~Ian
@jamesdeath3477
@jamesdeath3477 Год назад
I guess there are no problems with introducing this kind of modification to the design? I mean, they are for sure less than the problems you might have if you didn't, so there's that.
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
It can be tricky making changes to a type design, however in this case both aircraft use the same part numbers and assemblies for the bulk of the structure in this area, Hawker kindly introduced the change to the design. ~Ian
@ALA-uv7jq
@ALA-uv7jq Год назад
Is it true that the Typhoon killed more RAF pilots than the enemy?
@JohnSmith-ei2pz
@JohnSmith-ei2pz Год назад
No that was the RAF cooks!
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd Год назад
Not at all! ~Ian
@user-iy5kh7gb1p
@user-iy5kh7gb1p 10 месяцев назад
Thanks!
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 10 месяцев назад
Thank you Very much! ~Ian
@wackowacko8931
@wackowacko8931 5 месяцев назад
Thanks!
@TyphoonLegacyCoLtd
@TyphoonLegacyCoLtd 2 месяца назад
Thank you so very much!! ~Ian
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