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/sci/ - Science & Math

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7441227 No.7441227[DELETED]  [Reply] [Original]

Could planes be used to get to space more cheaply? As far as I understand, the only thing stopping a plane getting higher is lack of oxygen so could replacing some of the cargo space with oxygen tanks allow it to fly into orbit? A 777 has a range of over 9000 km and the ISS is only 400km away.

>> No.7441233

>>7441227
:) you area dumb nigger

>> No.7441239

>>7441227
That's kinda what space shuttle did, except not fully.
Look how much of a failure it was.
Your idea is even worse.

>> No.7441243

>>7441227
retard

>> No.7441245

>>7441239
Wasn't the space shuttle just a rocket with wings for landing? I'm talking about using ambient air to get most of the way in the atmosphere then use some stored oxygen to run the jet engine in space.

>> No.7441247

>>7441227
turbines stop working when there's nothing for them to pull on.

did you know that planes are just submarines that fly

>> No.7441252

>>7441245
Just no.
You're a retard.
Also, ISS is at 400km altitude AND flies at a few km/s speed.

>> No.7441257

>>7441247
>turbines stop working when there's nothing for them to pull on.

Who's the retard now? Turbines just let you achieve compression for continuous combustion at lower velocities, they don't need atmospheric air to flow into them, just an oxygen source.

>> No.7441258

>>7441227
Yes, but not like that. You're on the right track, though.

>> No.7441259
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7441259

>>7441227

>> No.7441261

>>7441257
Thrust generated by the engine comes mostly from the air that never goes through the combustion chamber.
Feeding the engine with pure oxygen and fuel would melt it.
You're still a fucking retard, please leave /sci/ and never come back again.

>> No.7441263

As altitude increases you are faced with 2 problems

1) Engines become less effective since air is getting so thing they have hardly enough air to push away (lack of oxygen is also a concern, but a little less so)
2) the airflow over the wings will not be enough to generate enough lift to climb

>> No.7441266

>>7441245
This is essentially the Skylon spaceplane concept. It is not easy.

The trick is, it's not distance that makes space hard, it's speed. At ISS altitude, to maintain orbit and not fall down, you must be going 17,000 mph.

>> No.7441270

https://en.wikipedia.org/wiki/K%C3%A1rm%C3%A1n_line

>> No.7441272

>>7441261
>Thrust generated by the engine comes mostly from the air that never goes through the combustion chamber.

That's a turbofan, a turbojet is zero bypass. The Olympus engine is one example and that took Concorde faster than any other commercial passenger aircraft.

>> No.7441283

>>7441272
We're literally talking about a 777's turbine.
Engines with no bypass would just melt due to high temperatures.

>> No.7441296

>>7441283
Concorde's didn't and you're forgetting about film cooling.