Ergonomics And An Accident Hitting The Saab Safir 😭
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- Опубліковано 9 лют 2025
- Discussing if cockpit layout has influence on accidents. This 1954 Saab Safir was hit from behind by another plane. Hopefully it can be repaired or the fuselage can be replaced. A sad story, but the good thing about it is that nobody was hurt.
This video is not based on a thorough investigation, it’s my personal reflection only. Accidents can happen to anybody. If you think you are immune to them you are wrong and it can be dangerous. The focus should be on ergonomics, not putting blame on someone.
Very sorry to find out about the Safir, it is a beautiful plane. Very much hoping that it gets repaired!
So sorry to see the Safir with tail damage. ☹
Its going to be one hell of a repair , I'm sure it will be sorted but looking at the fuselage it may take a while 😥
Just glad to hear nobody was injured. 👍
Its a shame that Aircraft Designers / Engineers have changed tried and tested designs which are intuitive. I guess the investigation will bring up the human factors element of the design of the Dynamic!!
Thanks for an awesome video 👍👍
Maybe I talked too much about right and left hand. You can get used to maneuvering stick and throttle with any of them. Anyway it’s not so convenient to have both hands to the right at engine startup (as left pilot) as it is to have one on each side. On the Cherokee the start button is ok for the left hand in the roof with the right hand on the throttle. The brake arrangement on the Diamond is probably more remarkable.
I look forward to the new videos. Very upsetting news to see that damage, I'm very sorry to see. I hope they can find someone who can work on a vintage like that.
Personally I dislike the push-pull levers in Cessna, so it was fortunate my limited flying time was in Pipers, and it seem to work well and feel more like a "real plane"
Thank you for these videos.
I wanted to be an air force pilot but because of a medical issue; I was not able to complete my PPL.
Please continue making these videos Bjorn
Thank you! I will. 👍🏼🙂
First, let me thank you for the cockpit demonstration of the Safir! I have tried SE-IRN once from the right and the harmony of controls, "fine mechanic feel of the stick" and warbird like feeling beats any microlights I´ve flown. The same goes against the Cessnas and Pipers I tried occasionally.
Been flying many hours in the Dynamic in Sweden, and several times in VUZ (shown in your film) from right seat. The push/pull is a twisting throttle as well, and from what I´ve heard a concession for the american market. I think it differs from the look-alikes in some Cessnas in that here you have to push a button in the middle with the thumb to get the push/pull action. Nobody likes it afaik, and it´s a pain with formation flying because of the thumb button. Also makes it harder to transition from left seat to right seat, since until you get used to the new position you tend to twist it in the wrong direction (needed for finer adjustments like on final). With a normal throttle lever right seat is no big deal. You can get the Dynamic with a normal lever on the console, but then there´s no place left for the manual trim, so it has to be electric with buttons on the stick. The stick then usually gets a "thicker ergonomy". I´m not a fan of either. Luckily I got a couple of years experience in the FK14 with a normal lever and despite having electric trim and flaps, a more "normal" left stick as well.
For startup in the Dynamic with fixed propeller at ESTT you twist the throttle to near total idle (with choke) or half a turn (without choke) and leave it there. So the ergonomy is good with stick pulled back with left hand while turning the key with right, but of course sometimes you have to adjust during the process and get the same cumbersome position as you describe. The brakes are set on the console before. As well as gradual breaking action there´s two notches. The first is enough for engine startup, and the last is needed for engine run-up. VUZ has constant speed and maybe that explains the slightly different intial start up procedure. We´ll find out.
Very unfortunate accident, but good that you show us a clearer picture of what happened! I´ve heard the Dynamic ignated at full throttle, by human error or technical problem I don´t know. Second notch brakes would probably not held, but maybe would have limited the accident.
As a side note, the push/pull twisting throttle easily gets bent if an unexperienced passenger kicks it while entering/leaving the plane, so sometimes you push it to max with the engine off to avoid this. The same goes with our other microlight at ESTT, which actually has toe-brakes, and I´ve seen/experienced it ignite with full throttle a few times, but the brakes held. To reach the adjustment for the pedals in both our planes the throttle also gets in your way, so same thing there, easy to forget to pull it out. VUZ has a more ergonomical pedal adjustment at the side of each pilot, but it wasn´t totally stable. Using the rudder from the right seat I "kicked through" a couple of times, leaving the pedals at my seat in a "no position" (of three notches) until I fixed it. Despite this, the Dynamic is a very robust plane with excellent flying qualities. VUZ is a little quicker in roll compared to the older Dynamics, but maybe a bit less sensitive in pitch.
Super interesting that the throttle is pushed to max to avoid it to be damaged when entering or for pedal adjustment. Thank you very much for comment, I'll use the info in a part 2 video. I did not know the details you described.
@@bjornpilot I´m not sure it´s common practice at Ljungbyhed to do so, but at ESTT it happens. Another thing I heard from our mechanic is that at least on the Rotax engines they go to full rpm if the throttle wire breaks! Very practical in the air, less on the ground. Glad you found something useful, and looking forward to the part 2.
You are in your element. Hope you have a great day.
Another interesting video. You’re emphasizing left hand on the throttle and right on the stick like in most fighters. That’s fine in the Safir. The Cherokee, Cessna and the Airbuses or Boeings for that matter you have been flying around in its the opposite way, as long as you’re flying pic. In my opinion this is no big deal. It depends on what you are used to. The new sleekly 2 seater on the other hand had a very unusual cockpit layout and we sadly saw the consequences of this in that modern plane. Hopefully you’ll get your Saab back in airworthy condition in not so distant future. Happy flying 😃
Agree with the no big deal for left and right hand. But the brake position is really strange on the Diamond. 😳
I agree totally.
First class video, hope the safir gets back in the the air soon 😢, looking forward to some flights in the Cherokee 👍
Love your videos 🤙
Interesting ! Learnt many things !
Great video. Greetings from JNB
I am sorry to see (from a far) what happened.
It makes me so sad seeing a plane crashed like that... Don't tell Mike Patey about it or it will be turned into a full carbon plane overnight :D I hope it will get fixed soon
Nice very nice hanger trip 👍
The Safir looks to have way better ergonomics than the Dynamic. Not a pilot, but when driving I will always prefer a lever whose angle indicates by feel where it is in its range of travel, rather than a push-pull slider. (For example, gear selection). And not fitting footbrakes when other planes have them is just daft, an accident waiting to happen.
VERY NICE
Det kan bli lite safirflygande inom det närmsta endån... Fick lite goda nyheter idag:)
Bra! Blir nyfiken. Vi hörs! 🙂
老哥 很喜欢你的视频 大爱瑞典