Linked Questions

2 votes
1 answer
2k views

What is the upper altitude limit for propeller driven aircraft? [duplicate]

Is it possible to fly 100 kilometers with a propeller driven aircraft? and if not what is the limit of a propeller driven aircraft?
Christian's user avatar
68 votes
5 answers
43k views

What determines the maximum altitude a plane can reach?

What factors determine the maximum altitude for a plane? Is it limited by wing design, engine thrust, and so on? Is there a formula by which one can calculate the maximum altitude a plane can reach?
Vido's user avatar
  • 771
56 votes
4 answers
11k views

Why do solar planes have many small propellers instead of fewer large ones?

Many solar planes, like NASA's Helios (pictured above), NASA's Pathfinder, and to a lesser extent Facebook's Aquila employ the use of many small motor propeller sets instead of one or two engines like ...
Gus's user avatar
  • 1,039
13 votes
4 answers
2k views

Is an "atmospheric geostationary satellite" feasible with current technology?

Meaning by "atmospheric geostationary satellite" a vehicle capable of hovering 30 km above Earth surface, hence insde atmosphere, for unlimited time, making use of air propellers, solar panels and ...
jumpjack's user avatar
  • 231
4 votes
3 answers
2k views

In high-altitude piston aircraft, what type of forced induction (boost) is used?

In high-altitude piston aircraft, what type of forced induction (boost) is used? Turbocharger or supercharger?
Andrea Ghilardi's user avatar
3 votes
1 answer
3k views

Is there a limit to the possible altitude for electric jets?

So I was thinking about Elon Musk's supersonic electric jet idea. Assuming we have sufficiently energy-dense batteries, where would the limits be in terms of speed and altitude. His logic seems to ...
user15864's user avatar
8 votes
2 answers
3k views

What are the limiting factors when flying a model UAV plane to high altitude?

Setting aside the likely legal factors for a moment, what are the limiting factors when flying a model plane to high altitude? As I see it these could be: Battery power consumption - Model planes ...
blarg's user avatar
  • 181
5 votes
2 answers
895 views

What kind of drone might be able to fly so high that it "operate(s) outside national boundaries"?

In the question What is a propellant burner trailer? I mention that CNN and NPR have pointed out that the US president recently tweeted a surveillance photo of an explosion of a rocket on a launch ...
uhoh's user avatar
  • 6,311
5 votes
1 answer
667 views

Is it safe to use a propeller plane to fly commercially over the Tibetan Plateau?

I saw this youtube video today: Flying over Mt Everest. A lovely view of stunning nature - quite spectacular. However, I looked up the plane - or at least what I think is the plane - and found that it ...
Stein Åsmul's user avatar
1 vote
2 answers
999 views

How are IAS/CAS and TAS used in flight?

Could you please explain to me one moment in relation to IAS and TAS. In all books I read I see that the IAS is highlighted as a reference for stall, take-off, landing and other performance items. So, ...
Sergey's user avatar
  • 101