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Author Topic: Future version of DGIII  (Read 32675 times)

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Offline Shirson

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For rabid astrounauts pair a.e. -  not a big detour.

Offline freespace2dotcom

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Reply #101 - 02 September 2004, 17:57:20
Odd. My normal emulation site doesn't have those emu proggys.

Definately worth the look. :)

Thankies! ;)



Offline reekchaa

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Reply #102 - 03 September 2004, 05:53:08
I like your posted design, Shirson!  ..Reminds me of that Hiller Flying Platform of 1956 by A.C. Robertson.  
(yes, of course I just pulled that info outta my arse  ;))  

I imagine it could be a REALLY fun ship to fly..   Maybe like the 'teacups' ride at disneyland... a-spinnin and a-wobblin'
all over the place.  Of course, one well-placed gyro would fix THAT stiggy-wigget. (practicing up on my euro-speak)

I got a buncha crazy engineering ideas tucked away in my 'priceless ideas' briefcase I made 20 years back... I gotta
find it and see if any pass the 'realism' bar of today.

- Excuse my Sigi.. it's only temporary until Freespace admits his intellectual (or artistic) superiority - ;)



Post Edited ( 09-03-04 06:10 )

~ the Reekchaa

Offline Shirson

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Reply #103 - 03 September 2004, 10:10:50
We a giga-offtopic-flooders gang :)

I'll return to my question about new generation of Dan's spaceships.
If needs a popular craft, that must be agile, not_a_big ship, for atmospheric and space fly, powerful for vertical take
off from Earth and interplanetary mission.

I think, ship must:
1 Flat-bottom for reentry
2 Wings for atmospheric fly
3 (not sure in eng term) Direct-Stream Jet (Linear-Stream Jet?) engine, that can use atmosphere like a reactive mass
4 Complex avionics
5 Useful and ergonomic panels
6 Unlike DG :)
7 ...?


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Offline DocHoliday

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Reply #104 - 03 September 2004, 12:01:31
Hm.. That's hard. What you described basically IS the DG-III... it even has turbo pumps and air intakes, even though
that's not Direct stream jet.. :) I think you mean scramjet? uses the speed of air to create jet pressure for
combustion, yes?


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"Mood is a matter of choice. I choose to have fun!" -Vidmarism No 15

Offline Shirson

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Reply #105 - 03 September 2004, 12:49:01
Quote
DocHoliday wrote:
I think you mean scramjet? uses the speed of air to create jet pressure for
combustion, yes?
Combustion? Who say "combustion?" :)
Engine with combustion never have high Isp, 4000-6000 m/s max. For high Isp, like DG (40000-50000 m/s), needs
nuclear engine.
Nuclear engine can use atmosphere instead fuel. Air come into active zone of reactor for heating. And flow out like jet
stream. In vacuun engine use fuel for propulsion.
Im Orbiter it may realized like low fuel consumption with high DNP.

(Sorry for my eng :) )


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Offline DocHoliday

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Reply #106 - 03 September 2004, 13:09:46
Heh, combustions is when you have fuel, ignite it and use the power of explosion to move something. Even air itself,
so yeah, jet is combustion in my view :)

Hm, but I'm not familiar with a nuclear engine in connection to airflow..  How does that work? The reactor generates
heat itself, so if you put air with that, you cool it down, no? Unless you ignite the air somehow or add SOME kind of
fuel to it? what is in the exhaust? isotopes?? :) do you have any link on the net that explains it?

Quote
(Sorry for my eng :))
hehe, you are Russian? Well I am Slovene. We could probably understand eachother well enough even in our own
languages. Except I don't read cyrillic that well anymore :badsmile:

Cheers oh um.. zdravo! ;)


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Offline Shirson

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Reply #107 - 03 September 2004, 13:40:25
Quote
DocHoliday wrote:
Heh, combustions is when you have fuel, ignite it and use the power of explosion to move something. Even air itself,
so yeah, jet is combustion in my view :)
For combustion (chemical engine) needs fuel + oxidizer. After ignition, fuel and oxidizer compound into oxide with heat
generation ( exothermic process). Heat accelerate oxide and we have jet-engine :) Oxidizer can be onboard (rockets)
or engine use air from enviroment (airplane). But, max jet stream speed for chemical engine - 6000 m/c (Be - fuel, F -
oxidizer), Kerosine-LOX(Liquid Oxigen) ~3660. LH2-LOX ~ 4200 m/s

Quote
Hm, but I'm not familiar with a nuclear engine in connection to airflow..  How does that work? The reactor generates
heat itself, so if you put air with that, you cool it down, no?
Yes :) And fuel specialy used for cooling reactor, otherwise reactor melt down. Heated fuel use for "move something"
:)

Quote
Unless you ignite the air somehow or add SOME kind of
fuel to it? what is in the exhaust? isotopes?? :)
Nope, heat air :)
Do you have coffee-machine? Its prototype of direct-stream nuclear engine :)
Cold water come into heater, vaporized and in vapor-state flow to tube.
Cold water - air
Heater - reactor
Tube - nozzle
Vapor - jet stream
:)

Quote
Do you have any link on the net that explains it?
I now, Boeing research air-nuclear engine for american-answer-to-Concorde... but have no english links...
But i'll seach.

Quote
hehe, you are Russian?
Yep.

Quote
Well I am Slovene. We could probably understand eachother well enough even in our own
languages. Except I don't read cyrillic that well anymore :badsmile:
Moget byt, but i'll need practice in english  :)
In russian that engine called "praymotochniy yadernyi dvigatel"

Quote
Cheers oh um.. zdravo! ;)
Privet :)


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Offline DocHoliday

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Reply #108 - 03 September 2004, 14:34:52

Quote
Do you have coffee-machine? Its prototype of direct-stream nuclear engine :)
No, hehe.

Quote
Cold water come into heater, vaporized and in vapor-state flow to tube.
Cold water - air
Heater - reactor
Tube - nozzle
Vapor - jet stream
Okay, I think I understand, but how do you accelerate the air, after it's been heated..? You just push it into a funnel,
to increase it's speed?

Quote
In russian that engine called "praymotochniy yadernyi dvigatel"
hmm.. "linear (what is yadernyi - jet, fast, sail??) lifter"? :)

:) Okay, English it is then, chum!


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"Mood is a matter of choice. I choose to have fun!" -Vidmarism No 15

Offline Shirson

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Reply #109 - 03 September 2004, 14:51:53
Quote
DocHoliday wrote:
Okay, I think I understand, but how do you accelerate the air, after it's been heated..?
I no needs to accelerate air - heat do this :)
Temperature is kinetic energy of particle. High temperature - high stream speed.
v=sqrt(2*kT/m)

Quote
In russian that engine called "praymotochniy yadernyi dvigatel"
hmm.. "linear (what is yadernyi - jet, fast, sail??[/quote]
nuclear :)


Quote
) lifter? :)
No. Dvigatel = engine. Linear nuclear jet engine... hmmm..


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Offline DocHoliday

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Reply #110 - 03 September 2004, 15:49:54
Quote
DocHoliday wrote:
Okay, I think I understand, but how do you accelerate the air, after it's been heated..?
I no needs to accelerate air - heat do this :)
Temperature is kinetic energy of particle. High temperature - high stream speed.
v=sqrt(2*kT/m)
[/quote]
hm.. I was never any good with gases and temperature equations :) so if you increase deltaT and decrease mass (is
this mass of particles or airplane?), bang, you've got BIIIG velocity.. I like it.. but, but.. hm.. a nuclear reactor would
be a huge and heavy thing to haul on a plane... for the moment.

Quote
In russian that engine called "praymotochniy yadernyi dvigatel"
hmm.. "linear (what is yadernyi - jet, fast, sail??[/quote]
nuclear :)
[/quote]
*Doc slaps his forehead* But of course! Jedro, jedrski reaktor. Nuclear reactor..  :)

Quote
) lifter? :)
No. Dvigatel = engine. Linear nuclear jet engine... hmmm..
[/quote]
hehe, dvigati means to lift here, dvigatelj would then be a clumsy way of calling the person that lifts :)) correct would
be dvigovalec (for a person) or dvigalo (for a machine).. engine would be motor, which you're probable also familiar
with. So -> Linear nuclear jet engine -> premočrtni jedrski reakcijski motor

Cool :)


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"Mood is a matter of choice. I choose to have fun!" -Vidmarism No 15

Offline Shirson

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Reply #111 - 03 September 2004, 16:04:35
Quote
DocHoliday wrote:
hm.. I was never any good with gases and temperature equations :) so if you increase deltaT and decrease mass (is
this mass of particles or airplane?), bang, you've got BIIIG velocity.. I like it.. but, but.. hm.. a nuclear reactor would
be a huge and heavy thing to haul on a plane... for the moment.

:pfff:
v=sqrt(2*kT/m)
V = Mean speed of gas particles
k - universal gas constant
T - thermodinamic temperature
m - molecular mass
Less m -> high speed.
High T -> high speed

Quote
*Doc slaps his forehead* But of course! Jedro, jedrski reaktor. Nuclear reactor..  :)

hehehe

Quote
hehe, dvigati means to lift here, dvigatelj would then be a clumsy way of calling the person that lifts :)) correct
would
be dvigovalec (for a person) or dvigalo (for a machine).. engine would be motor, which you're probable also familiar
with. So -&gt Linear nuclear jet engine -&gt premočrtni jedrski reakcijski motor

dvigalo - :lol:

ok

LNJE - Linear Nuclear Jet Engine.  (Approval. Stamp. Sign.)



Post Edited ( 09-03-04 16:05 )

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Offline DocHoliday

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Reply #112 - 03 September 2004, 16:28:50
Quote
dvigalo
You just laugh. We call our elevators that :)


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"Mood is a matter of choice. I choose to have fun!" -Vidmarism No 15

Shirson.

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Reply #113 - 05 September 2004, 20:44:24
Draft mesh ;)



Offline Krytom

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Reply #114 - 05 September 2004, 20:51:06
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOHHHHHHHHHH8o8o8o8o8o8o8o

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHH:):):):):):):):):):):)



Offline Shirson

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Reply #115 - 06 September 2004, 04:40:05
What? :doubt:


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Offline Atom

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Reply #116 - 06 September 2004, 08:30:07
I think what he means is, wow. That's some pretty nice modeling, and it's only a draft.



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Offline Krytom

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Reply #117 - 06 September 2004, 09:11:31
Yup, exactly. :) Sorry :drunk:
I like the door. ;)



Offline UAF_Lt_Brenton

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Reply #118 - 06 September 2004, 10:19:21
I seem to remember making a post a while back about a version of KITT for Orbiter.  How's it going McDuck?


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Offline Schimz

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Reply #119 - 06 September 2004, 11:14:10




Actually, it's not an official addon, it's just a (heavy :)) tweakin' of the DG original mesh made with LightWave.



Post Edited ( 09-06-04 11:17 )


bradz

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Reply #120 - 06 September 2004, 14:33:58
The doc hit it on the head in earlier response----

ability to add your own custom ISP and fuel levels
beyond the limits even 100,000 Kg or more.

Just like I have 273% N2 and 145% 02 at
the moment.
finally aproaching Pluto


Offline DocHoliday

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Reply #121 - 07 September 2004, 12:18:55
Quote
The doc hit it on the head in earlier response----
Okay, I'll shut up about it :)

Nice mesh shirson!


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"Mood is a matter of choice. I choose to have fun!" -Vidmarism No 15

Offline UAF_Lt_Brenton

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Reply #122 - 07 September 2004, 19:33:30
What about KITT? Or the Delorean? How are they going Mcduck?


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Offline Jim Lovell

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Reply #123 - 31 May 2005, 16:42:41


NAMUR ! It's my city !

But the good website is www.ville.namur.be ;)


Jim Love:love:LL
C'est en se plantant que l'on construit ses racines....


ConneXion

Offline She_Da_Lier

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Reply #124 - 31 May 2005, 18:59:05
Qute an ancient topic :)


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