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High Speed Aerodynamics Review

541K views · 4 Nov 2026

blancolirio

622K subscribers

Comments · 1.5K

@renscience · 6 days ago (edited)
Juan. Retired FAA inspector here.Have you thought about a job with the NTSB or with the FAA? I know you have served in the military already as I did in my youth, but I think you would be a great asset to our country not that you aren’t already, but the country needs people like you. Your knowledge, demeanor, and enthusiasm for aviation is needed by those agencies.
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@Bdub1952 · 6 days ago
Came for the Oroville spillway disaster coverage, stayed for the aeronautical education. Nearly ten years, now.  Thank you for my continuing education, Juan.
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@Lee-r6h9x · 6 days ago
It also is advantageous to not fly into a thunderstorm
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@timsytanker · 6 days ago
Miles Aircraft came up with the ‘all flying tail’ for the Miles M-52 which the British government then gave to the Bell aircraft company and was used on the X-1.
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@aviobrain · 6 days ago
The stabilator came from the Miles M52 programme in the UK. We gave away yet another advancement.
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@1964Mooney · 6 days ago
LearJet found this early on in the 20 series and tried dropping the gear. It worked to bring the airplane back under control. It did however take the gear doors off on the one they did it on. Hence you see even in the Lear 60 manual as a last resort to throw out the gear (of course before the tail departs the airplane). BTW Tony LeVier was a friend of mine, first test flight of the F-104 (1954) Now with RVSM we have an entire cadre of pilots who have never hand flown a sweep wing airplane above 28,000. They handle differently than the feel in the sim. I used to make all my new co-pilots hand fly at altitude during IOE just so they had some idea of how it handled. Can't do that today. It will be a problem in the future. Had a couple even scared to shut off the autopilot up high and fly.
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@johng4527 · 2 days ago
The X-1 did in fact have a all moving tail.   But it was only moveable a toggle switch.    Of course that detail was kept a secret, but it was an all moving tail that allow him to keep X-1  level in the tran-sonic zone.
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@julianpalmer4674 · 6 days ago
Juan, the big secret of a fully moving horizontal stabiliser was invented by us Brits and originally goes back to the SE5 in WWI but admittedly not at Mach 1 at the time.  Later after WW II around 1940 the Miles M52 was developed with a fully moving high level horizontal stabiliser,  the project later cancelled by the UK government the technology shared / sold to guess who!  Bell Aircraft who applied it to the X-1.
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@scottw8792 · 6 days ago
Jaun. I’m ATC and I tell people you are the number one source for this kind of information. You should start doing more educational content like this. Thanks for what you do.
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@oldgoat142 · 6 days ago
Most of the videos out there about this mishap are crap, or conspiracy theory nonsense. You, Sir, are worth the wait. I'm very glad I did. What a tragedy.
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@speedlever · 6 days ago
Great tutorial on the Mach tuck. But I’m curious. I spent a reasonable amount of time in swept wing jets (not Lear though), and don’t recall having to switch on Mach tuck protection. This would be in Citation 650s and the Canadair RJ (cl65 iirc). But it’s been too many years. Still, I would have thought I would have remembered something like that. I believe the MMO of the C650 was 0.85 or so. I believe the cl65 was the same.
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@byronbailey9229 · 6 days ago
Juan the discovery of the all flying horizontal stab was by the British Saunders Roe design which they gave to the Americans. I learnt to fly on Vampires - a first getn.jet fighter. We had to learn recovery from a high speed full power dive into compressibility M.8?. The recovery as it ' tucked ' had to be immediate or it was terminal - immediate idle and speed brakes- it was violent pitch up and down +4/-2 G. Converted onto the Avon Sabre with the flying stab. Combat manoeuvre speed ( best turn ) was M.83. Could fly to M.94 then shockwave formation came into play. Could dive to about M1.1 and due asymmetric shockwaves some crossed controls were necessary. 30 mm cannon with auto radar lock plus sidewinders made the Sabre a great dogfighter especially at high altitude. Then went onto the Mach 2 Mirage with autocommand pitch control that you could cruise dry at M.95 and slip past M1.0 without realising it. Since retiring ( B777 Captain ) I have been flying Lear 60's and others. Unfortunately U/A training in simulators does not reproduce the extremely rapid stall/snap at high altitude where the air density is 1/4 the sea level. Had it happen in the Sabre during ACT's.
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