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Potential energy question ( aeroplane vs escalator ) !

Posted by: topspeed - Thu Jan 11, 2018 10:33 am
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Potential energy question ( aeroplane vs escalator ) !
https://xprizenews.org/Forum/viewtopic.php?f=16&t=13220
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Author:  topspeed [ Thu Jan 11, 2018 10:33 am ]
Post subject:  Potential energy question ( aeroplane vs escalator ) !

I have notissed that 450 kg weighing AQUILA glider ( FACEBOOK DRONE )cruises at 20-25 km altitude using only 5 kW of power on its engine....which power comes from the sun.

Power ratio is 0.011 kw/kg.

If I lift 450 kg to 25 km..how much energy do I have to consume using an escalator ?

Do I somehow avoid it using an solar powered aircraft..or is it still using same amount of ( free ) energy ???

Author:  topspeed [ Fri Jan 12, 2018 4:07 pm ]
Post subject:  Re: Potential energy question ( aeroplane vs escalator ) !

I have a question !

If I manage to haul a 80 metric ton spaceplane to 42 km altitude...and dive like Baumgartner and lit the rocket at 27 km..will it exceeed M3 if the starting speed is 980 km/h at 42 km in propeller configuration ????

If I then use the max rocket power ( Merlin D1 ) to escape from the earths gravity to LEO ( first ) ...how much Oberth Effect gives me as increased delta-V ???

:wink: :wink:

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