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February 9, 1999
QuestChat with Chris Lockwood
Lead Engineer, Balance Calibration Laboratory
NASA Ames Research Center, Moffett Field, CA
[ Susan/NASAChatHost
- 5 - 09:05:51 ]
Good morning all! The chat with Chris Lockwood will begin at 10 AM Pacific
Time. I hope you have read Chris's bio prior to the chat so you can
ask great questions. During the chat be sure to read each others questions
to see if someone asks a question you wanted to ask. Also Read Chris's
answers, this might give you the idea for a new question.
[ Susan/NASAChatHost
- 6 - 09:06:18 ]
At the conclusion of the chat, we ask that you take a few minutes to let
us know what you thought about it. You may use our online chat feedback
forms at http://quest.arc.nasa.gov/qchats/qchat-surveys
to share your thoughts with us. We suggest that you bookmark this page
for use with future chats. Your comments and suggestions are important
to us, so we hope you will visit this location at the conclusion of the
chat.
[ Susan/NASAChatHost
- 7 - 09:54:05 ]
Alright every one Chris Lockwood is here and ready for your questions.
[ ChrisLockwood/ARC
- 9 - 10:01:09 ]
RE: [Susan/NASAChatHost] Actually he had to step away from
his desk for a minute. So this is my chance to say hello. Are any of you
using Wright Flyer online in your classes?
Chris here. I'm back at my desk. Good morning Susan and any and everyone
else.
[ ChrisLockwood/ARC
- 11 - 10:05:05 ]
RE: [Susan/NASAChatHost] Chris how is the work on the Automatic
Balance Machine coming?
Very well. It is currently being test for accuracy. In May we will go
to England and present the capabilities at an Intenational conference.
[ ChrisLockwood/ARC
- 17 - 10:10:54 ]
RE: [Susan/NASAChatHost] I had a graduate student ask what
are the big issues in mechanical engineering in aeronautic these days,
how would you answer that?
There are several big chalanges in aero these days, mostly dealing with:
noise, fuel economy and super sonic transport viability. In wind tunnel
testing much effort is being put toward validating computer simulation
with experiments and vise versa.
[ ChrisLockwood/ARC
- 20 - 10:13:10 ]
RE: [Brice-MChoate/GradeSchool] On a previous
chat I was told a magizine to look up the blueprints for a wind tunnel.
When I tried to print out the answer, it didn't print. Do you know of
a resource where we can find out how to make a simple wind tunnel?
Brice, I don't know of any simple wind tunnle plans off the bat but I
have a book on tunnels and I see if I can get you the title in a minute.
[ ChrisLockwood/ARC
- 21 - 10:16:22 ]
RE: [Chris-MChoate/GradeSchool] Before a space
shuttle is launched, what keeps it in a upright position?
Chris, good question. There's a huge support structure at the launch pad
and "Crawler" that transports the shuttle to the pad. The is an excellent
PBS TV program on the shuttle. Have you seen it?
[ ChrisLockwood/ARC
- 23 - 10:20:26 ]
RE: [Evin-MChoate/GradeSchool] Do you know
which plane goes the highest and how high does it go?
Evin, thanks for the tough one. I would say it was the X15 from the 1960's.
It's an interesting aircraft. You should look into it on the web. There
was a large effort for this plane in the Mojave desert when I was growing
up. oh, I think it flys over 30 mi. high?
[ Susan/NASAChatHost
- 24 - 10:20:46 ]
RE: [Brice-MChoate/GradeSchool] I couldn't
cut and paste it. All the information left the screen and didn't even
appear on the Chat Archives. I just need to know the name of the magazine,
date and year it was published. Some of the students in our class wants
to make a wind tunnel.
Brice it was in Scientific American and I think it was in 1998 or 1997.
do you have any questions for Chris about the balance, sailing, mechanical
engineering, wind?
[ ChrisLockwood/ARC
- 25 - 10:22:42 ]
RE: [Brice-MChoate/GradeSchool] I couldn't
cut and paste it. All the information left the screen and didn't even
appear on the Chat Archives. I just need to know the name of the magazine,
date and year it was published. Some of the students in our class wants
to make a wind tunnel.
Brice, I think I can get you some info about wind tunnels. I don't know
the publication you're asking about though. Have you got an email address?
[ ChrisLockwood/ARC
- 29 - 10:26:40 ]
RE: [Hayleigh-MChoate/GradeSchool] On a previous
chat Rabi Mehta said that downhill skiers practiced in a wind tunnel.
How fast was the wind while they were in the tunnel?
What's the downhill speed record? Who knows this besides me? Did you also
know that ski jumpers practice flying in wind tunnels??
[ Susan/NASAChatHost
- 30 - 10:29:26 ]
RE: [ChrisLockwood/ARC] Chris here. I have a question.
What's the strangest wind tunnel test you've ever heard of (and I'll see
if I can beat it.)
I have heard of a tennis ball in a wind tunnel
[ ChrisLockwood/ARC
- 31 - 10:29:52 ]
RE: [Susan/NASAChatHost] Chris did you have any special
adjustments to make in the Wright Flyer balance?
No special adjustments. But since it's very wide wing span the roll capability
of the balance had to be large. Roll is wing up / wing down . Does any
one know how roll is controled on the Wright flyer?
[ Susan/NASAChatHost
- 33 - 10:33:56 ]
At the conclusion of the chat, we ask that you take a few minutes to let
us know what you thought about it. You may use our online chat feedback
forms at http://quest.arc.nasa.gov/qchats/qchat-surveys
to share your thoughts with us. We suggest that you bookmark this page
for use with future chats. Your comments and suggestions are important
to us, so we hope you will visit this location at the conclusion of the
chat.
[ Susan/NASAChatHost
- 34 - 10:35:50 ]
RE: [ChrisLockwood/ARC] Ok. I think the down hill speed
record on skis is over 130 Miles per hour! At that speed if the falls
the friction of his rubber suit on the snow melts it - and boils it!
That's interesting so do you think the downhill skier practiced at 100
mpg or faster?
[ ChrisLockwood/ARC
- 36 - 10:38:20 ]
RE: [Susan/NASAChatHost] I have heard of a tennis ball
in a wind tunnel
I have a book at home by Scientific American on birds and and Ornothologist
(sp) tested the physiology of a seagull by having it fly in a wind tunnel.
Kind of like a tread mill for Birds!!!
[ ChrisLockwood/ARC
- 37 - 10:39:50 ]
RE: [Susan/NASAChatHost] That's interesting so do you think
the downhill skier practiced at 100 mpg or faster?
Faster I would guess.
[ ChrisLockwood/ARC
- 38 - 10:41:10 ]
RE: [Brice-MChoate/GradeSchool] I can give
you my teachers email address. You may send her information at mailto:diannac3@hotmail.com
Brice, I will send something to your teacher email after the chat.
[ Susan/NASAChatHost
- 41 - 10:46:34 ]
RE: [ChrisLockwood/ARC] I have a book at home by Scientific
American on birds and and Ornothologist (sp) tested the physiology of
a seagull by having it fly in a wind tunnel. Kind of like a tread mill
for Birds!!!
Chris I guess the test space was about 5' wide at least.
[ ChrisLockwood/ARC
- 42 - 10:48:58 ]
RE: [Katelynn-MChoate/GradeSchool] When the
skiers practice in a wind tunnel, do they have snow in the tunnel?
Katelynn, That's an excellent question. It certianly seems like they should.
I don't think they do though. In a sense, the skier is in a pair of boots
fixed to the floor of the tunnel. The wind blows across him and he is
trying to minimize his wind resistance by changing his tuck position.
Where is MChoate???
[ ChrisLockwood/ARC
- 43 - 10:50:41 ]
RE: [Susan/NASAChatHost] Chris I guess the test space was
about 5' wide at least.
Good point that is about the wing span of a gull. Any one know the largest
bird wing span, or the fastest bird alive?
[ ChrisLockwood/ARC
- 47 - 10:54:33 ]
RE: [Ben-MChoate/GradeSchool] How do they keep
clean in space shuttles?
Ben, lots and lots and lots of vaccuming.
[ ChrisLockwood/ARC
- 49 - 10:56:02 ]
RE: [Susan/NASAChatHost] Chris how did the Wright Brothers
control roll in their Flyer?
They twist the whole aircraft with cables. Rather than using flaps called
aelerons like on a conventional plane.
[ Susan/NASAChatHost
- 50 - 10:56:35 ]
Mchoat thanks for all the questions!
[ ChrisLockwood/ARC
- 51 - 10:57:23 ]
RE: [Susan/NASAChatHost] Well everyone this has been a
really fun chat. Thanks for coming Chris your answers helped us learn
a lot!
My pleasure. The fastest bird is a perigrin falcon .. over 100 mph. Thanks
for coming
[ Choate - 52 - 12:21:58 ]
My first grade students and I live in deep southern Illinois. We have
really enjoyed Quest Chat. They enjoyed your profile, of course I left
out the parts that are above their heads.
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