Development Video: Early Stall Testing

[JustanotherPilot 242]

51 minutes ago, zmak said:

It looked like he booted rudder in to enhance the stall. Thats how its done from training from a faded memory

Thought the same thing, wing drop after stall - used to terrify me during training, then after mastering the recovering I kinda enjoyed them.

[LRBS 948]

2 hours ago, FDEdev said:

Never heard of an aggravated spin. I assume you mean aggravated stall.

 

 

 

Did you hear also about flat spin?

 

 

Edited November 6, 2019 by killthespam

[FDEdev 955]

Since an aggravated stall can lead to a spin, I didn't notice that the term aggravated spin is being used as well.

Not judging by some youtube text but by re-reading text from e.g. Rich Stowell.

I do stand corrected.

[LRBS 948]

I guess we can skin the cat different ways.

My point here is that I hope that not all their airplanes will stall and end up doing what we noticed in their video.

This is an example of another stall.

.

 

Edited November 6, 2019 by killthespam

[FDEdev 955]

Stalls can be extremely violent........
https://www.youtube.com/watch?v=L2CsO-Vu7oc

Don't know about the 'newer' 747s but the 100 and 200 didn't pitch down at all during a clean stall.

 

Edited November 6, 2019 by FDEdev

[jon b 2,050]

The 747-400 stall itself is fairly benign , it’s getting it to accelerate and climb back to recover lost altitude without over loading the wing and  entering a secondary stall which is the tricky bit.

[LRBS 948]

4 hours ago, FDEdev said:

Stalls can be extremely violent........
https://www.youtube.com/watch?v=L2CsO-Vu7oc

Don't know about the 'newer' 747s but the 100 and 200 didn't pitch down at all during a clean stall.

 

I agree with you 100% that stalls can be extremely violent. But not all of them do it violent.

I flew 747 SP which was pretty nasty on stalls , while 100 and 200 did pitch down pretty pronounced on clean stall but in t.o. configuration 100-200-300-400 and -8 are just unbelievable easy to recover.

Actually (flying the 400 and -8) it's amazing how docile and how much work you need to put into get it into a stall.

As John B (obviously another real world pilot) rightfully so state it the 400 does like to surprise you with a secondary stall if you overcontrol it.

My only concern here is from MSFS not to design all the airplanes to behave like the one in that movie clip, nothing else. 

[FDEdev 955]

59 minutes ago, killthespam said:

I flew 747 SP which was pretty nasty on stalls , while 100 and 200 did pitch down pretty pronounced on clean stall.

My only concern here is from MSFS not to design all the airplanes to behave like the one in that movie clip, nothing else. 

I've meant that the 100 and 200 didn't pitch down on their own. AFAIK they had a stick nudger.

Since one can design pretty good FDEs already with FSX/P3D, I don't think that it will be different with the new sim.

It will be most likely a lot more work but at the same time more realistic as well.

[andyjohnston.net 617]

2 hours ago, killthespam said:

I agree with you 100% that stalls can be extremely violent. But not all of them do it violent.

I flew 747 SP which was pretty nasty on stalls , while 100 and 200 did pitch down pretty pronounced on clean stall but in t.o. configuration 100-200-300-400 and -8 are just unbelievable easy to recover.

Actually (flying the 400 and -8) it's amazing how docile and how much work you need to put into get it into a stall.

As John B (obviously another real world pilot) rightfully so state it the 400 does like to surprise you with a secondary stall if you overcontrol it.

My only concern here is from MSFS not to design all the airplanes to behave like the one in that movie clip, nothing else. 

Really?  Whenever I stall a 747 in FSX/P3D, that's pretty much the end.  There's no chance of me recovering, and I'm glad it's just on the computer screen.

[jon b 2,050]

Which one are you using Andy? I’ve found PMDG’s 74 does a good job with the stall and indeed replicates the secondary stall really well.

Is it this secondary stall and recovery which is catching you out? It’s at its worse at high altitudes 

[andyjohnston.net 617]

All I have is the defaults, plus one other freeware which probably has similar dynamics.

[jon b 2,050]

Ah, that’ll be why then😄. Well, hopefully with 2020 even the default aircraft will be things of beauty  

[Murmur 3,944]

7 hours ago, FDEdev said:

Stalls can be extremely violent........
https://www.youtube.com/watch?v=L2CsO-Vu7oc

Scary! I've seen heavy aircrafts stall like that in XP and it looked a bit unrealistic to me, but now I see it's possible in some cases. Not saying stalls are always modeled accurately in XP, but I am surprised that in RL some airliners can have such a violent stall.

Edited November 6, 2019 by Murmur

[FDEdev 955]

I don't think that they would have certified the 717 with that kind of stall behaviour, but it shows why flight testing is essential, despite all the computations and simulations.

[turnandbank 243]

2 hours ago, zmak said:

It looked like he booted rudder in to enhance the stall. Thats how its done from training from a faded memory

That's how it was done in the Cessna 150/152 back when I was training. Spins where a mandatory part of training for a PPL in Canada, at least when I got mine in 1975. We did spins with 2 to 3 rotations before initiating recover. Never did one in a Cessna 172 though, but I'm guessing they would spin similarly to the 150 with a kick of rudder right at the break.