Questions tagged [lift]
In aeronautics, lift is a component of aerodynamic force that acts perpendicular to drag, and balances the weight of the aircraft against the effects of gravity to achieve flight. In astronautics however, the lift component of a flight of the spacecraft is a force directly negating and greater of the effects of gravity and atmospheric drag on the body of the spacecraft as it gains altitude, a distance between itself and the body it is lifting off from.
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Inflatable tank/balloon use for recovery
Hopefully this idea makes sense. Basically if you've seen the space-truck (ROOST), you'll get where I'm going with this. I'm wondering whether an inflatable tank/tank lining could be used to produce ...
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Is it possible for fuselages to have a negative lift coefficient at positive angle of attacks?
Recently I was interested in the descent phase of the first stage of the falcon 9 launch vehicle. I assumed a long cylinder to represent the first stage. using DATCOM to predict aerodynamics ...
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Ion propulsion system [duplicate]
Good evening. Is there a formulae to calculate how much lift an ion propulsion system would create on earth, given factors like voltage, load, etcetera? Just a mathematical formulae. That is all I ask ...
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Lift and Drag of a Model Rocket
Talking about aerodynamic forces in a model rocket, I believe that Lift and Drag are the components of a net force which acts on the Center of pressure. Knowing this, could I affirm that the net ...
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Drag and lift coefficient tables/plots for Saturn V/Space Shuttle/Other
I'm looking for drag and lift coefficient data to plug into my launch simulation. I could assume constant coefficients, but I'd like to structure my model to accept lookup tables, so I'm looking for ...
user39728
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Is aerodynamic control in an exosphere possible, in case velocity is high enough?
Exospheres are different than the lower parts of atmospheres (if there are any): the molecules don't collide anymore and it doesn't behave like a gas. However, it still causes some tiny little drag on ...
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What if you tried to fly a kite on Mars?
I wonder what kite flying might be like on Mars, in one per cent the atmospheric pressure of Earth, about two per cent the Earth's atmospheric density and 38% the Earth's surface gravity. Are there ...
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What would it take for a balloon to reach an altitude of 65 km (214,000 ft) above the Earth's sea level?
Kind of a follow-up question to Could a helium balloon on Mars and on Triton float at air pressures lower than it could on Earth due to the bodies' low gravities?. As stated in the linked question,...
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Could a helium balloon on Mars and on Triton float at air pressures lower than it could on Earth due to the bodies' low gravities?
The highest altitude ever reached by a balloon above the Earth's surface is about 33 mi (53 km), unmanned above Japan. The 2nd-highest one reached 51.8 km above California. Both reached the lower ...
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With a 10% increase in Earth's mass, would the Karman line move up or down, and by how much?
This is an exercise to better understand the basic physics and math behind scale height and the Karman line. It was inspired by this answer to Why is FAI considering lowering the Karman Line to 80km? (...
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What if GOCE rolled 90°?
Reading this question: Is GOCE a satellite or aircraft? I wondered what would happen if GOCE rolled 90° in either direction, so that it's solar panels become parallel to Earth's horizon, and then ...
user19132
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Can impact lift produce greater than 1 lift to drag ratio?
At orbital velocity in low circular Earth's orbit, at an altitude where mean free path exceeds cross sectional area of a craft or wing. therefore aerodynamic lift becomes impossible (Consider ...
user19132
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When do aircraft become solarcraft?
Any body travelling through particles undergoes drag. Any body able to generate lift (for instance spheres cannot generate lift) can generate lift if it undergoes drag. First by assuming one body in ...
user19132
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Could a rocket launch off water horizontally in stages us using water and air for lift to save fuel? [duplicate]
A term I have heard is the "water was like class". Meaning that the water had 0 waves. Could a rocket be modified to take off a horizontal surface starting slowly increasing throttle on each stage? ...
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Could the $C_L$ of the X-15 be calculated from the flight data near the Kármán line altitude?
The "lift coefficient" $C_L$ can be very different for one specific aircraft at different speeds. According to this article from NASA about the lift coefficient: So it is completely incorrect to ...
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