Stall speed on big airliners?

[UnAnswerd]

Does anyone know what a typical stalling speed would be, for say a B-747, in a clean configuration???

 

[aeronautic1]

And

... atless than 40 hours in a Cherokee you would like to knows this because? Try figuring it out on your FS simulator and get back to us.

I smell muslim poon.

 

[UnAnswerd]

... atless than 40 hours in a Cherokee you would like to knows this because? Try figuring it out on your FS simulator and get back to us.

I smell muslim poon.

I was just interested in getting some perspective. I apologize if that is unacceptable to you. I did in fact try it out in FS, and apparently the 747 stalled at 200KIAS. Is this valid??? Maybe someone a little less moronic than yourself can answer the simple question.

 

[DGdaPilot]

I was just interested in getting some perspective. I apologize if that is unacceptable to you. I did in fact try it out in FS, and apparently the 747 stalled at 200KIAS. Is this valid??? Maybe someone a little less moronic than yourself can answer the simple question.

At what altitude? Flap setting? Bank angle? There are quite a few factors that go into determine the stall speed of an aircraft (note I said stall speed and not stall angle of attack).

If I'm not mistaken, the CRJ can get into stick shaker events around 300 kts way up in the atmosphere.

 

[UnAnswerd]

At what altitude? Flap setting? Bank angle? There are quite a few factors that go into determine the stall speed of an aircraft (note I said stall speed and not stall angle of attack).

If I'm not mistaken, the CRJ can get into stick shaker events around 300 kts way up in the atmosphere.

Straight and level, at only 6,000'MSL. No flaps.

It should've occurred to me that altitude would also be a factor. However, the fact that the trainers I’ve been exposed to cannot even get past 15,000', precluded my inclusion of the altitude factor. At least I know better now...

 

[WizardPilot]

I smell muslim poon.

Hilarious.

 

[9GClub]

I guarantee you it's not 200 KIAS.

 

[SDCFI]

And the only good muslim poon...is dead muslim poon.

 

[Kingairrick]

I can believe that it might be near 200 KIAS at max weight, clean config. You might be very surprised how much the high lift devices lower the stalling speed for a particular weight. If it as an accurate EFIS on your sim program, the stall speed should be where the red tape starts on the bottom of the airspeed tape. If there is a manual for the airplane somwhere in there, find "VREF" for the highest weight listed with clean wing-(0flaps, 0slats). vref = 1.3 vs.

 

[Traumahawk]

... atless than 40 hours in a Cherokee you would like to knows this because? Try figuring it out on your FS simulator and get back to us.

You guys are such nerds. What bank angle blah blah.

The guy asked a simple question. Can noone give him a simple answer?? This is flight INFO isn't it.

KingairRick....disregard. These guys forgot what it was like to solo, or sit on the ground and look up at what many of us do as exciting and distant. I had questions like this too. The people who answered them didn't ridicule me when they answered either.

Asses.

 

[Kingairrick]

I'm just hopin' I'm right....

 

[JonJohn82]

Hilarious.

Not really.

 

[KeroseneSnorter]

Minimum clean maneuvering speed at max gross landing weight is right around 258 KIAS. At max landing weight the stall speed will indeed be somewhere in the neighborhood of 200 KIAS. (Never been that slow while clean in the real thing to test it out, but in the sim the shaker will start about then.)

Typical ref speeds (final approach speed) at max landing weight and full flaps is in the 162 to 168 KIAS range, depending on the wind adjustments.

These numbers are for a 747-200.

 

[FearlessFreep]

Basically it all depends on gross weight and altitude. Basic operating weight of the average cargo 747-200 is about 350,000#, add about 45,000# of fuel for just goofing around in the pattern and that gives you a total of 395,000# takeoff weight for a minimum operating conditions. With a max gross structural takeoff weight of 833000# that gives you a possible increase of 2.1 times a minimum operating weight of 390000#. Now you also have a maximum landing weight of 630000# which still represents 1.6 times more weight than your goofing off minimum takeoff weight. So in short your clean manuevering stall speed is going to vary an awful lot just on gross weight alone. There are many other variables involved as well, and we have not even got into the discussion on minimum flap manuevering speeds as well. Pretty much all these parameters as calculated prior to takeoff and landing. There are on the old jurrasic jets little plastic "bugs" that are positioned around the airspeed indicator to note the different speeds.

The 747 is definitely not your father's Cherokee!

Good Luck & Have Fun!

 

[Bjammin]

The 747-400 will stall at 205KIAS at 6K, 600,000LBS Gross Weight (A very normal operating weight), and clean. Just ran the numbers in my books.

 

[NookyBooky]

... atless than 40 hours in a Cherokee you would like to knows this because? Try figuring it out on your FS simulator and get back to us.

I smell muslim poon.

If you make fun of a rookie long enough, all you get is someone who is hesitent or even somewhat afraid to ask questions because of fear of ridicule. Having someone in the air who is afraid to address gaps in his knowledge, because some all-knowing 3500hr Yeager wannabe busted his balls, is much more dangerous than giving out super-classified, top secret Vs info on the whale.


............as if Vs on a forty year old airliner is a matter of national security, he could probably buy a POH for the whale on ebay

 

[five-alive]

The 747-400 will stall at 205KIAS at 6K, 600,000LBS Gross Weight (A very normal operating weight), and clean. Just ran the numbers in my books.

finally a simple answer...didnt convolute it with "it depends" on all sorts of garbage, just give us a ballpark number!

 

[UnAnswerd]

finally a simple answer...didnt convolute it with "it depends" on all sorts of garbage, just give us a ballpark number!

No kidding. And thanks for those who took a stab at it. I just wanted to get a feel for how the heavy stuff performed compared to the toy airplanes used for primary training. Its amazing that an airliner will actual stall at what is really a very brisk 205kts. I guess they really are built for speed.

 

[GravityHater]

holy crap 205kts, that means vref (about 1.3vso) is going to be near 265kts. Almost impossible to believe.

 

[310]

It stalls at 205 clean. Vref is 1.3 times dirty stall.

 

[profile]

MD11 at max weight has even faster clean stall speeds, hence clean min man of 289 kts for 1.3 Vs. Do the math!

 

[Snakum]

If you make fun of a rookie long enough, all you get is someone who is hesitent or even somewhat afraid to ask questions because of fear of ridicule. Having someone in the air who is afraid to address gaps in his knowledge, because some all-knowing 3500hr Yeager wannabe busted his balls, is much more dangerous than giving out super-classified, top secret Vs info on the whale.

Eggzackery. This isn't that 'psycix' guy who always asks for pay and QOL anytime absolutely ANY company is mentioned. This is someone with a legit question, the same kind of things I wondered about as a student pilot.

Some of you jerk-@ffs are so jaded I wonder if you're not becoming a hazard in the air. Lighten the #%@^ up already!

Minh

 

[Bjammin]

Vref Flaps 30 (Normal all engine landing flaps),at 500,000LBS landing weight is 135KIAS.

 

[TonyC]

Eggzackery. This isn't that 'psycix' guy who always asks for pay and QOL anytime absolutely ANY company is mentioned. This is someone with a legit question, the same kind of things I wondered about as a student pilot.

Some of you jerk-@ffs are so jaded I wonder if you're not becoming a hazard in the air. Lighten the #%@^ up already!

Minh

You're right. I feel much more comfortable with this guy's legitimate questions and observations.

Like this one:

Now what if, I really wanted to attempt to hijack an airplane and fly it into a building. If I've been using all these recourses at my disposal, is there any doubt that I'd have a decent chance of succeeding??? Airliners are complex, but when you don't have to take off and don't have to land, is it really that difficult to simply point a large Boeing in a desired direction???

.

 

[Snakum]

I wasn't speaking to the question you quoted, rather to the question he asked in this thread.

Try to keep up ... m'kay?


A great big rightbackatcha Spelling & Punctuation Boy!

Minh

 

[Yank McCobb]

holy crap 205kts, that means vref (about 1.3vso) is going to be near 265kts. Almost impossible to believe.

Well, I can't believe THIS comment from someone who supposedly is a pilot with 2500 hrs. He11, even the most inexperienced of student pilots should know the difference in stall speeds clean and dirty...or when something seems SO far out of the ordinary that it should at least be questioned.

But, I guess this is the future of the piloting "profession". "Dudes" taking it up to "four one f*ckin' oh" hootin' and hollerin' all the way without the slightest clue as to what is going on around them or what their aircraft is telling them. Or not questioning the fact that the guy next to you just handed you a TOLD card with Vref as 265 kts.

 

[TonyC]

I wasn't speaking to the question you quoted, rather to the question he asked in this thread.

Try to keep up ... m'kay?


A great big rightbackatcha Spelling & Punctuation Boy!

Minh

Well, OK, I'll break out a scorecard and a sharpened #2 pencil then.


The "rolleyes" was directed at Unanswerd's hijacking post, and not at you or your observation; don't take it as a personal insult.


My comment refers not to the specific question posed by Unanswerd in this thread, but to his greater "body of work", if you will. Occasionally he stumbles across a question that sounds like the product of an inquisitive curiosity. Unfortunately, however, he suffers the curse of his own track record. If anybody else had asked about stall speeds of a large airliner, I might believe it was an honest question, motivated by an innocent curiosity. However, when the guy that elsewhere proclaims that he has received access to sufficient knowledge to perform another 9/11-type attack, I am a bit more suspicious of the motives.

 

[Foxcow]

If you make fun of a rookie long enough, all you get is someone who is hesitent or even somewhat afraid to ask questions because of fear of ridicule. Having someone in the air who is afraid to address gaps in his knowledge, because some all-knowing 3500hr Yeager wannabe busted his balls, is much more dangerous than giving out super-classified, top secret Vs info on the whale.


............as if Vs on a forty year old airliner is a matter of national security, he could probably buy a POH for the whale on ebay

Amen.

 

[UnAnswerd]

However, when the guy that elsewhere proclaims that he has received access to sufficient knowledge to perform another 9/11-type attack, I am a bit more suspicious of the motives.

Tony C,

That is the most humorous thing I've seen from you to date. I am flattered. You actually think I'm going to attempt to hijack an aircraft??? I wasn't "proclaiming" that I had this special knowledge needed to perform a 9/11-type attack. I was simply discussing the fact that this knowledge is virtually available to anyone willing to acquire it. It was, if you will, a simple discussion topic. The fact that you'd somehow take it as something more than that, is laughable.

I know you despise me, and my questions, and are convinced that I'm a troll. But please...now I am a terrorist???

By the way, I'm now going to conclude this sentence without using a period, because I know you wont be able to sleep for days

 

[Bob Runday]

I've been flying in my 172 for 10 years now, and its stall speed is 44 kts in the clean configuration. Now thats fast!!Don't even get me started on different bank angles. Yippee.