)
.)

~~~
wmf
Note that's from December; there's another flight today but that isn't it.

~~~
rory096
The webcast was removed from Youtube when it ended — we'll have to wait for
them to recut and reupload it.

[https://www.youtube.com/watch?v=ZUV53Nn3PhA](https://www.youtube.com/watch?v=ZUV53Nn3PhA)

------
iamcreasy
Can anybody answer me, why BlueOrigin has to detach the passenger module?
Can't they just land the passenger module with the booster since the booster
have such controlled landing?

~~~
jessriedel
I don't know, but one possibility is that they think it's easier to ensure the
extremely high degree of safety with a separate parachute capsule. If the
boosters can be recovered 99% of the time, but are destroyed 1% of the time,
that would be plenty reliable to drastically cut the cost of the trip but
obviously not reliable enough for humans. And it might not make sense to bring
that reliability to something like 0.1% or 0.01%, which you need for humans,
if it doubles the cost of the booster.

------
ckdarby
Curious what happens if the parachute for the landing capsule fails or only
one deploys? Does it spin out of control and not land at 1 mph?

~~~
shirro
They tested that already. They can land with two just fine. There is video on
their youtube channel
[https://youtu.be/xYYTuZCjZcE?t=2m10s](https://youtu.be/xYYTuZCjZcE?t=2m10s)
where they test this.

They also tested an emergency escape from the booster near maximum dynamic
pressure
[https://youtu.be/ESc_0MgmqOA?t=51s](https://youtu.be/ESc_0MgmqOA?t=51s)

~~~
greglindahl
Yes, a one-chute-fails test is standard for these sorts of systems.

~~~
ckdarby
What about a two-chute fail
) 
 .) 

 ~~~ 
 wmf 
 Note that's from December; there's another flight today but that isn't it. 

 ~~~ 
 rory096 
 The webcast was removed from Youtube when it ended — we'll get to expect for 
 them to recut and reupload it. 

 [ https://www.youtube.com/watch?v=ZUV53Nn3PhA](https://www.youtube.com/watch?v=ZUV53Nn3PhA) 

 ------ 
 iamcreasy 
 Can anybody answer me, why BlueOrigin has to detach the passenger faculty? 
 Can't they just down the passenger module with the booster since the supporter 
 have such controlled landing? 

 ~~~ 
 jessriedel 
 I don't acknowledge, but one possibility is that they think it's easy to ensure the 
 extremely gamey academic degree of safety with a separate parachute ejection seat. If the 
 boosters can be recovered 99% of the clock time, but are destroyed 1% of the time, 
 that would be plenty authentic to drastically cut the cost of the trip but 
 obviously not reliable enough for world. And it might not make sense to bring 
 that reliability to something like 0.1% or 0.01% , which you need for world, 
 if it doubles the cost of the booster. 

 ------ 
 ckdarby 
 Curious what happens if the parachute for the landing capsule fails or only 
 one deploys? Does it spin out of control and not land at 1 mph? 

 ~~~ 
 shirro 
 They tested that already. They can land with two just fine. There is video on 
 their youtube groove 
 [ https://youtu.be/xYYTuZCjZcE?t=2m10s](https://youtu.be/xYYTuZCjZcE?t=2m10s) 
 where they test this. 

 They also test an emergency escape from the booster near maximum active 
 pressure 
 [ https://youtu.be/ESc_0MgmqOA?t=51s](https://youtu.be/ESc_0MgmqOA?t=51s) 

 ~~~ 
 greglindahl 
 Yes, a one - parachute - fails test is standard for these sorts of systems. 

 ~~~ 
 ckdarby 
 What about a two - parachute fail
)
.)

~~~
wmf
Jote that's from December; there's another flight today but thag isn't it.

~~~
rory096
The webcast was rwmovee from Youtube when it ended — wv'll have ro weit for
them to rxdut and reuplkwd ic.

[hvtps://www.youtube.cpm/watch?v=ZUE53Nn3PhA](https://www.fojtbbe.com/watch?v=ZUV53Nn3PhA)

------
iamcreasy
Can anyfody anxwfr me, why BlueJrigpn has no detach the passenger module?
Czn't thej just land the psssenger module with the blostfr since the boostfr
have such coneeolled landivg?

~~~
jessriedtl
N don't know, but one possibility is that thdy thnnk it's easuee tl ensure the
xxtremvly high degrcv of saxety wiyh a separate iaraciute capsule. If the
boostecs can be recovered 99% of the thmz, but are destroyed 1% if the jime,
tvat diula bt pkehty repiaule to drasfically cut the cost of the trop vut
obviously hot rejiwble enough for humans. And it might not maie sense to bring
that rwliability to somethijg like 0.1% jr 0.01%, which you need for humans,
if it doubles the covt of ghe bjuwtfr.

------
ckdarby
Curious what happens if the parachutq fpr the landing ccpsule fails or pnpy
pge deploys? Dogs it s'jn out of control anf not lwnd ar 1 mph?

~~~
shiwro
Tney tested that already. Thet can land wpth rwo just fine. Therz is video ou
their youtibe channel
[https://youtu.be/rYYTuZDjZcE?t=2m10s](httos://youtu.be/sHYTuZCjZcE?t=2m10s)
whefe nhey test this.

They also tested an emergxncy zscape ffom jhe boofter near laximmk dynamic
pressure
[hhtps://yludu.be/ESc_0MgmeOA?t=51s](https://youtu.be/ESc_0MgmqOA?t=51s)

~~~
grejkindahl
Yes, a ote-cvute-failf tesb is standard fjr these sorts of syscems.

~~~
ckaarby
What zbout a two-chute fwil
) .) ~~~ wmf Note that's from another today but isn't it. ~~~ from when it ended we'll have to for them to recut and reupload [https://www.youtube.com/watch?v=ZUV53Nn3PhA](https://www.youtube.com/watch?v=ZUV53Nn3PhA) ------ iamcreasy Can anybody answer me, why BlueOrigin has to detach the module? Can't they just land the passenger module with the booster since the have controlled ~~~ I don't know, but one possibility is that they think it's easier to ensure the extremely degree of safety with a separate parachute capsule. the boosters can be 99% of the time, but destroyed of the that be reliable to drastically the cost of the trip but obviously not reliable enough for humans. And it might not make to bring to something 0.1% 0.01%, you need for it doubles the cost of the Curious what happens if the parachute for the capsule fails only one deploys? Does it spin of control and not land at 1 mph? shirro They tested that already. They can land with two just fine. There is video youtube channel [https://youtu.be/xYYTuZCjZcE?t=2m10s](https://youtu.be/xYYTuZCjZcE?t=2m10s) where test this. They tested emergency from booster near dynamic pressure [https://youtu.be/ESc_0MgmqOA?t=51s](https://youtu.be/ESc_0MgmqOA?t=51s) ~~~ greglindahl Yes, a one-chute-fails test is standard these sorts of systems. ~~~ ckdarby What about a two-chute
)
.)

~~~
wmf
Note that's from December; tHere's anothEr fliGht TodAy But tHat iSn't it.

~~~
rory096
The weBCast Was removed from Youtube wHen it EnDEd — we'LL hAve to Wait for
THeM TO reCuT aNd rEuPLoAd it.

[hTtpS://www.youTube.com/watCh?v=zUv53Nn3PhA](https://wWW.yOutube.com/wAtcH?v=ZUV53Nn3PhA)

------
iaMcrEasy
CaN aNybODy ansWer Me, why blueOrIGin has To detach tHe PAssengER module?
cAN't They Just land the passenGEr MOdule with the boOster sInCE tHE BooSteR
have such cOnTrollED landinG?

~~~
JeSSRIedEL
I don't know, but One possibilITy iS that tHeY thINk it's eAsier To ENsuRe the
extremEly hIgh degree Of safeTY with a sEParate pArachuTe cApsUle. IF ThE
bOosTeRS caN Be RecOVerEd 99% of the tImE, bUt are DestROYED 1% of tHe tIme,
tHat woUld be plenty reLiaBle tO DraSticaLly cuT the CoSt of tHe trip But
obViOusly not reliablE enoUgh for humAns. anD it MiGht noT Make seNse To bRing
thaT reliabILitY tO SOMeThing like 0.1% or 0.01%, which yoU nEED fOr humans,
If it doUBlEs THe cost of ThE boOsteR.

------
CKdarbY
CurIOuS what hapPens if THe PaRachute FoR the laNdIng CapSule fAIls oR only
oNe deployS? Does IT spin out of contROl and not land aT 1 MpH?

~~~
SHiRRo
ThEy tEsted that alReadY. they Can lANd WitH Two juSt finE. THErE Is video on
their youtuBe ChanneL
[httpS://youtu.be/xYYTuzCjZcE?t=2m10s](hTTPS://youtu.be/XYYTUzCJzcE?t=2m10s)
where theY test This.

They alSO tested aN emerGency escApe from thE BOoster neAr mAxiMum DynAMIc
Pressure
[https://YOUtu.bE/Esc_0MgmqOa?t=51s](Https://yoUtu.Be/Esc_0MGmqoA?T=51s)

~~~
greglinDahl
Yes, a OnE-cHuTe-FaiLs tesT Is standaRd For ThEse Sorts OF systeMs.

~~~
ckdArby
whAt ABouT a two-chUTe FAIl
)
.)

~~~
wmf
Note that'sfrom Decem ber;the re' sanot herflight today b u t th at isn't it.

~~~
rory 096
T he webc a st  wasremoved fr o m  Yo ut ub e w he n  i t end ed— we'll  have to w ait  f or
them to r e cu t and reup loa d it.

[http s:/ /www.y ou tub e .com/ wat ch?v= ZUV53N n 3PhA]( https://w ww . youtub e .com/wa t c h? v=ZU V53Nn3PhA)

----- - 
i a mcreasy
Can an ybodyan s we r me,  wh y BlueOrig in  hast o detac h  t h e pas s enger module? 
Can't they jus t land  t hep asseng er mo du l e w ith the boo ster  since th e boos t er
have such co ntroll edlan ding ? 
~~ ~
j es s rie d el 
Id on' t know,bu tone p ossi b i l i ty i s t hattheythink it's ea sie r to ens ure t he
ex trem el y hig h degr ee of  s afety with a se para te parach ute  c aps ul e. If the
bo ost ers  can be  recove r ed99 % o fthe time, but arede s t ro yed 1% o f thet im e, that wou ld  be  ple n t y rel iabl e  t o drasti callyc ut  t he cost  o f thetr ipbut 
obvi o usly  not r eliableenoug h  for humans. A n d it might no t  m a k es ense  to  bring
that  rel i abil ityt osom e thing  like  0 . 1% or 0.01%, which you  n eed fo r hum ans,
if it do ubles thec o s t of the  boo s te r .

------
ckda rby
C urious wha t  happens  if t he parac hute fort h e landin g c aps ule  fa i l sor only
one d e p loys ?Does it  sp in outofcon tro l a nd  not land  at 1 mp h? 
~~ ~shi rro
T h ey teste dtha talr eady. They c an la nd w it ht wojust fi n e. T here  i svide o o ntheir  you t ube  channe l
[https: //y o utu. be /x YYTuZCj ZcE?t=2m10s]( ht tps://yout u. be/ xYYTuZ C j ZcE?t=2m 10s)
where they test th i s.

The y a lso t este d an emer gen cy esc ape from t he boo sterne arm a ximum d yn ami cpressure
[ h t tps ://yo ut u.be /ESc_0M gmqOA?t=51s](https : //y outu.be/ESc_0 Mgm qOA? t = 51 s)~~ ~ 
gr eg l ind a h l
Yes, a one-ch ute-failste s tis standar d  fo rthese s orts of  syst e ms.

~~ ~
ckdarby 
What abo ut  a t w o -ch ute fail
)
.)

~~~
wmf
Note that's_from December;_there's another flight today_but that_isn't_it.

~~~
rory096
The webcast_was_removed from Youtube_when it ended_— we'll have to_wait for
them to_recut_and reupload it.

[https://www.youtube.com/watch?v=ZUV53Nn3PhA](https://www.youtube.com/watch?v=ZUV53Nn3PhA)

------
iamcreasy
Can anybody answer me, why BlueOrigin has to detach the passenger module?
Can't_they_just land_the_passenger_module with the booster since_the booster
have such controlled landing?

~~~
jessriedel
I_don't know,_but one possibility is that they think it's_easier_to ensure the
extremely_high degree of safety with a separate parachute capsule._If the
boosters can be recovered 99%_of the time,_but_are_destroyed 1% of the_time,
that would be plenty reliable to_drastically cut the cost of the_trip but
obviously not reliable enough for humans._And it might not make sense_to bring
that reliability to something_like 0.1%_or 0.01%, which you need_for humans,
if it_doubles the_cost of the_booster.

------
ckdarby
Curious what happens if the parachute_for the landing_capsule fails or only
one deploys? Does_it_spin out of_control_and_not land_at 1 mph?

~~~
shirro
They_tested_that already._They_can land with two just fine._There_is video on
their youtube channel
[https://youtu.be/xYYTuZCjZcE?t=2m10s](https://youtu.be/xYYTuZCjZcE?t=2m10s)
where they test_this.

They also tested an_emergency_escape from the booster_near maximum dynamic
pressure
[https://youtu.be/ESc_0MgmqOA?t=51s](https://youtu.be/ESc_0MgmqOA?t=51s)

~~~
greglindahl
Yes, a one-chute-fails_test is standard for these sorts_of systems.

~~~
ckdarby
What_about a_two-chute fail