Now this is just so cool!

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Bill in Oregon
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Now this is just so cool!

#1 Post by Bill in Oregon » Sun Apr 14, 2019 9:09 am


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AJMD429
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Re: Now this is just so cool!

#2 Post by AJMD429 » Sun Apr 14, 2019 10:17 am

I can't imagine this airplane would do very well. Can you imagine the torque on that shared wing...?

I don't even play an aeronautical engineer on television, but it seems like it would have been better to have the tail shared as well.

I guess the proof is in the pudding, and it seemed to fly ok....!
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Bill in Oregon
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Re: Now this is just so cool!

#3 Post by Bill in Oregon » Sun Apr 14, 2019 10:55 am

Doc, seems mighty odd to me, too, but then so did a variant the first time I saw one -- the P-38.

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Re: Now this is just so cool!

#4 Post by AJMD429 » Sun Apr 14, 2019 1:21 pm

Yeah - and the tails were also attached on the P-38, instead of just the wings. That seems like it would be very strong and not fatigue and crack metal or joints.

Of course this new-fangled one could have a one-piece body made of rubber or carbon-fiber for all I know.... :D
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Pisgah
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Re: Now this is just so cool!

#5 Post by Pisgah » Sun Apr 14, 2019 2:00 pm

Here's an interesting article:

https://www.wired.com/story/stratolaunc ... aul-allen/

The wings are based on gigantic aluminum spars made by a special process, the same process being used for many other large components.

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Re: Now this is just so cool!

#6 Post by stretch » Sun Apr 14, 2019 2:10 pm

Can you imagine the torque on that shared wing...?
I wan't the only one who thought that, I see.

Joining the tails would make a MUCH stronger structure.

But perhaps since the payload is carried there, there's a logistical
reason not to do that. Maybe they're afraid that the released payload
will hit the horizontal stabilizer if it's joined. THAT would cause problems.....

-Stretch

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BlaineG
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Re: Now this is just so cool!

#7 Post by BlaineG » Sun Apr 14, 2019 2:34 pm

It wasn't meant for regular flight, but as a way to launch rockets. It pretty much does away with the first stage. :idea:
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Re: Now this is just so cool!

#8 Post by AJMD429 » Sun Apr 14, 2019 6:03 pm

stretch wrote:
Sun Apr 14, 2019 2:10 pm
Can you imagine the torque on that shared wing...?
I wasn't the only one who thought that, I see.

Joining the tails would make a MUCH stronger structure.

But perhaps since the payload is carried there, there's a logistical
reason not to do that. Maybe they're afraid that the released payload
will hit the horizontal stabilizer if it's joined. THAT would cause problems....
That's my assumption as well.

Anyway, it's pretty cool, and makes sense.
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Re: Now this is just so cool!

#9 Post by jeepnik » Sun Apr 14, 2019 7:57 pm

I’m pretty sure that these days wing loading has been figured out. Also the fuselage is carbon composite. These parts are stronger than previous materials and practically form an exoskeleton.

Then tops fellow invented a thing called a wind tunnel in the fairly early part of the last century
That and the area rule probably figured into the engineering.

I’m not an aerospace engineer but I know a few. Including some that worked in the engineering of those carbon composite parts.
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