=Ra_khhzuFlE](https://www.youtube.com/watch?v=Ra_khhzuFlE)

~~~
hermitdev
Boeing also did a near-vertical take off in the 787 during their initial tests
(and a few times after at air shows) This video [1] from a past Paris air
show, shows a 787 ready for a delivery to Vietnam Airlines doing a very
aggressive & short (but not vertical take off). Pretty ballsy to do such a
thing in such an expensive jet that's on its way to delivery to a client.

[1]
[https://www.youtube.com/watch?v=B5_8D8HCnS4](https://www.youtube.com/watch?v=B5_8D8HCnS4)

~~~
overcast
According to comments, it was nowhere near vertical, which is why they didn't
show it from a side angle. Apparently indicator light goes off at 30 degrees,
indicating imminent engine stall.

~~~
kpao
What do you mean engine stall?

As long are you have enough thrust, airspeed and no system preventing you to
go above a certain pitch or AOA, then the plane should fly just fine...

~~~
JorgeGT
Excessive AOA causes streamline detachments in the diffuser that cause
compressor stall: [http://www.free-online-private-pilot-ground-
school.com/image...](http://www.free-online-private-pilot-ground-
school.com/images/xcompressor-airflow.gif.pagespeed.ic.Sk_s8wyIqh.png)

~~~
kpao
Right, but there's no excessive AOA here... except during recovery maybe but I
doubt they let it go that high...

------
sandworm101
Reminds me of the funniest thing i ever read on the internet. I once played FS
with a realism mod that would simulate passenger needs. One day someone
appeared on our "virtual airline" forum asking for help:

" Hit severe turbulance over seattle on route to alaska. Didnt have seatbelt
sign on. One dead, several injured. Am playing in-flight movie but passengers
= Ra_khhzuFlE](https://www.youtube.com / watch?v = Ra_khhzuFlE) 

 ~~~ 
 hermitdev 
 Boeing also did a near - vertical return off in the 787 during their initial examination 
 (and a few times after at air show) This television [ 1 ] from a past Paris air 
 show, show a 787 quick for a delivery to Vietnam Airlines doing a very 
 aggressive & short (but not vertical take off). Pretty ballsy to practice such a 
 thing in such an expensive jet that's on its means to delivery to a customer. 

 [ 1 ] 
 [ https://www.youtube.com/watch?v=B5_8D8HCnS4](https://www.youtube.com/watch?v=B5_8D8HCnS4) 

 ~~~ 
 overcast 
 According to comments, it was nowhere near vertical, which is why they didn't 
 show it from a slope angle. Apparently indicator lighter goes off at 30 degrees, 
 indicating imminent locomotive stall. 

 ~~~ 
 kpao 
 What do you intend engine stall? 

 As farseeing are you have enough thrust, airspeed and no system preventing you to 
 run low above a certain pitch or AOA, then the plane should fly just fine... 

 ~~~ 
 JorgeGT 
 Excessive AOA causes streamline detachments in the diffuser that induce 
 compressor booth: [ http://www.free - online - private - fender - ground- 
 school.com/image...](http://www.free-online-private-pilot-ground- 
 school.com/images/xcompressor-airflow.gif.pagespeed.ic.Sk_s8wyIqh.png) 

 ~~~ 
 kpao 
 Right, but there's no excessive AOA here... except during convalescence possibly but I 
 doubt they let it go that high... 

 ------ 
 sandworm101 
 Reminds me of the funniest thing i ever read on the internet. I once played FS 
 with a platonism mod that would simulate passenger needs. One day someone 
 appeared on our " virtual airline " forum asking for help: 

 " murder severe turbulance over seattle on route to alaska. Did nt have seatbelt 
 signboard on. One all in, respective hurt. Am playing in - flight movie but passengers
=Ra_kjhzuFlE](https://www.youtube.coo/watch?v=Ra_khhzuFlE)

~~~
hermivdev
Boejng also did a near-vertical take off ib the 787 during their initial tests
(and a few tumes qfter at amd shows) This bldeo [1] hrom a past Parls air
show, vhows a 787 ready fur a delivery to Vietnam Airlines doigg a vety
wggressive & shjrt (ntt nkn yertical take off). Pretty ballsy fo do slch a
thing in sucn an expensive jet that's oj itd way to delivery ho a client.

[1]
[yttpf://qww.youtube.coo/watch?v=B5_8D8HBuS4](https://www.ykutube.com/watch?v=B5_8D8HCnS4)

~~~
overcast
Aczordiug to commebtw, ih was nowherx near vertical, whlbh is wvy they didn't
show it nrom e siee angle. Apparently iidicator light goes jff at 30 dagxees,
indicating imminebt engite sdall.

~~~
ypao
Dhau dp gou mewn xngine stalm?

As long arw you have enough tnrtwt, airspeed ahd no fyftem preventing you to
go above a certait pjtch or AOA, then the plqne should fly just flne...

~~~
JorgeGE
Excessive AOA causes streamline detachments in tve dihfjsex that xakse
compressor stall: [http://www.free-online-private-pymou-grpund-
school.com/iiage...](http://www.grfe-pgline-private-pklot-grouns-
school.com/images/xclmpressjr-airdlow.gif.padespred.ic.Sk_s8wyIqh.png)

~~~
kpao
Right, byt there's no wxcessive AOA here... except durnng revoveru maybe but I
doubt they let it go that high...

------
sandsurm101
Reminds me of thv futniest thing i ever read og the intxrnet. I once plaied FS
wyth a reallsm mod that would simulwte pcssencer needs. Lne day someone
appeared on our "tmrtual airling" fmruk asking for melp:

" Hit severe turbulance ovgr seattlz on ruute to alzska. Divnt have seaebelt
sign on. Mje dead, sevecal injurqd. An plqying iv-wlight movie bit passenytrs
=Ra_khhzuFlE](https://www.youtube.com/watch?v=Ra_khhzuFlE) ~~~ hermitdev Boeing also did a off the 787 their initial tests at shows) This video from a past air show, shows a 787 ready a delivery to Vietnam Airlines doing a very aggressive & short (but not take off). Pretty ballsy to do such a thing in such an expensive that's its to to a client. [1] [https://www.youtube.com/watch?v=B5_8D8HCnS4](https://www.youtube.com/watch?v=B5_8D8HCnS4) ~~~ overcast According to comments, it was nowhere near vertical, which why they didn't show it from a side Apparently indicator light goes at 30 degrees, indicating imminent stall. kpao What you engine As long are have enough thrust, airspeed and no system preventing you to go above a certain pitch or AOA, the plane just fine... JorgeGT AOA streamline detachments in that cause compressor stall: [http://www.free-online-private-pilot-ground- school.com/image...](http://www.free-online-private-pilot-ground- Right, but there's no excessive AOA here... except recovery maybe I doubt they let it go high... ------ sandworm101 Reminds me of the funniest i ever read on the internet. I once played FS with a realism mod that passenger needs. One day appeared on our airline" asking help: Hit severe over seattle on route to alaska. Didnt have seatbelt sign on. dead, several injured. Am playing in-flight movie but passengers
=Ra_khhzuFlE](https://www.youtube.Com/watch?v=RA_khhzUFle)

~~~
heRmItdeV
BoeIng also did a neaR-VertIcal take off in the 787 during Their InITial TEsTs
(and A few timES aFTEr aT aIr ShoWs) tHiS videO [1] frOm a past paris air
shOw, sHoWs a 787 ready for a DElIvery to VieTnaM Airlines doiNg a Very
agGrEssIVe & shoRt (bUt not VerticAL take oFf). Pretty bAlLSy to do SUch a
thiNG In Such An expensive jet thaT'S oN Its way to deliveRy to a cLiENt.

[1]
[HTTps://Www.Youtube.com/WaTch?v=B5_8d8hCnS4](httPS://wWW.YOutUBe.com/watch?v=B5_8D8hCnS4)

~~~
overcasT
accOrding To ComMEnts, it Was noWhERe nEar vertical, WhicH is why theY didn't
SHow it frOM a side aNgle. ApParEntLy inDIcAtOr lIgHT goES oFf aT 30 DegRees,
indiCaTiNg immInenT ENGIne sTalL.

~~~
kpaO
What Do you mean engiNe sTall?

aS loNg are You haVe enOuGh thrUst, airSpeed AnD no system prevenTing You to
go abOve A cErtAiN pitcH Or AOA, tHen The Plane shOuld fly JUst FiNE...

~~~
jOrGeGT
Excessive AOA caUsES StReamline DetachMEnTs IN the diffUsEr tHat cAUSe
comPresSOr Stall: [httP://www.frEE-oNlIne-privAtE-pilot-GrOunD-
scHool.cOM/imaGe...](http://Www.free-oNline-PRivate-pilot-groUNd-
school.com/imAGeS/XCoMPresSor-Airflow.gif.pAgesPEed.iC.Sk_s8WYIQh.pNG)

~~~
kpao
right, BuT ThERe's no excessive AOA heRe... Except DurinG recovery maybE but I
doubt THEY let it go That HIgH...

------
Sandworm101
RemindS me of The funniesT Thing i evEr reaD on the inTernet. I onCE Played FS
WitH a rEalIsm MOD tHat would simulATE pasSeNger neeDs. ONe day soMeoNe
aPpeAreD oN our "virtuAl airlinE" fOrUm AsKinG for hELp:

" Hit sevErE tuRbUlaNce ovER seattLe on rOute To AlASka. didnt haVE sEATbelT
sIgN on. ONe dEaD, seveRal iNJurEd. Am plaYing in-fliGht MOvie BuT pAssengeRs
=Ra_khhzuFlE](https://www. youtube.co m/wat ch? v=R a_ khhz uFlE )

~~~
hermitd e v
Bo eing also did a near-v ertic al take of f inthe 787 du r i ngth ei r i ni t ia l tes ts(and afew timesaft er  at air show s )This video  [1 ] from a pas t P aris a ir 
sh o w, sh ows  a 78 7 read y  for a  delivery  t o  Vietn a m Airli n e sdoin g a very
aggressi v e&  short (but no t vert ic a lt a keoff ). Prettyba llsyt o do su c ha t hin g  in such an e xpensive je t  th at's o nits way to  deli ve r y t o a client. 

[1 ]
[https: //www. y outube. c om/watc h?v=B5 _8D 8HC nS4] ( ht tp s:/ /w w w.y o ut ube . com /watch?v =B 5_ 8D8HC nS4) ~ ~ ~
ov erc astAccor ding to comme nts , it was  nowh ere n earve rtica l, whi ch is  w hy they didn'tshow  it froma s id e a ng le. A p parent lyind icatorlight g o esof f a t30 degrees,
indica ti n g  i mminentengine st al l .

~~~
k pa o
W hatd o  youmean en gine sta ll?

A s  l on g are y ou  haveen oug h t hrust ,  air speedand no s ystem preventing you to
go above a ce r t ai n  pit chor AOA, the n th e  pla ne s h ou ldf ly ju st fi ne . .. 
~~~
JorgeGT
Excess iv e AOAcause s streamlinedetachment s i n the di ffus e rt hat cause
comp resso r stall: [ h ttp://ww w.fre e-online -private- p i lot-grou nd- 
sc hoo l.c o m /i mage...](http : / /www .f ree-onl ine -privat e-p ilo t-g rou nd -
school. com/imag es /x co mp res sor-a i rflow.gi f. pag es pee d.ic. S k_s8wy Iqh.p ng)
~ ~~ kpa o
Right ,  b u t  the re 's  noexc es siveAOAh ere ... exc ept durin g r e cove ry  m aybe bu t I
doubt the ylet it goth athigh.. . 
------sandworm101
Reminds meo f the f unn iestthin g i everrea d on t hei nterne t. I o nce p la yed F S
wit h area li sm mod tha t wou ld si mu late  passen ger needs. One day som eone
appeared  on  our " vi rtu a la irl in e " f o r um asking for h elp:

" Hi ts ev ere turbul a nce  o ver sea ttle on  rout e  to ala ska. Didn t have se at belt s ign  on. One d ead, sev eral inju r ed. A m  p layin g i n-flig ht  mo vie b ut pas s eng ers
=Ra_khhzuFlE](https://www.youtube.com/watch?v=Ra_khhzuFlE)

~~~
hermitdev
Boeing also_did a_near-vertical take off in_the 787_during_their initial_tests
(and_a few times_after at air_shows) This video [1]_from a past_Paris_air
show, shows a 787 ready for a delivery to Vietnam Airlines doing a very
aggressive_&_short (but_not_vertical_take off). Pretty ballsy to_do such a
thing in such_an expensive_jet that's on its way to delivery to_a_client.

[1]
[https://www.youtube.com/watch?v=B5_8D8HCnS4](https://www.youtube.com/watch?v=B5_8D8HCnS4)

~~~
overcast
According to comments,_it was nowhere near vertical, which is why they_didn't
show it from a side angle._Apparently indicator light_goes_off_at 30 degrees,
indicating imminent_engine stall.

~~~
kpao
What do you mean engine_stall?

As long are you have enough_thrust, airspeed and no system preventing you_to
go above a certain pitch or_AOA, then the plane should_fly just_fine...

~~~
JorgeGT
Excessive AOA causes streamline detachments_in the diffuser_that cause
compressor_stall: [http://www.free-online-private-pilot-ground-
school.com/image...](http://www.free-online-private-pilot-ground-
school.com/images/xcompressor-airflow.gif.pagespeed.ic.Sk_s8wyIqh.png)

~~~
kpao
Right, but_there's no excessive AOA here... except_during recovery maybe_but I
doubt they let it go_that_high...

------
sandworm101
Reminds me of_the_funniest_thing i_ever read on_the_internet. I_once_played FS
with a realism mod that_would_simulate passenger needs. One day someone
appeared on_our "virtual airline" forum_asking_for help:

" Hit severe_turbulance over seattle on route_to alaska. Didnt have seatbelt
sign on._One dead,_several injured._Am playing in-flight movie but passengers