Timothy Truckle
  • Member for 4 years, 8 months
  • Last seen more than a week ago
  • Germany
2 answers
27 votes
6k views
Did the F-8 have a stall speed of 1.6x its landing speed?
40 votes

The stall speed your source is referring to may be the speed for a clean stall which means with the flaps are in flight position (= 0°). Flaps on powered planes usually increase lift as well as drag. ...

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9 answers
41 votes
8k views
Why was the boat mounted this way on the underside of the wing on the "Landseaire" flying yacht?
27 votes

The reason is the "flat tail" of the boat. The drag this "flat tail" produces when mounted "reverse" is much less then the dynamic drag it would induce the other way around. https://en.wikipedia.org/...

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2 answers
17 votes
3k views
How is a glider recovered and returned to an airport after landing in a field?
Accepted answer
16 votes

All gliders can be disassembled to take off wings and elevator. For each glider type there is a car trailer into which the glider fits after disassembling. Here you see the “reverse” process (...

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3 answers
10 votes
1k views
How long can an average aerobatic plane sustain 0g?
Accepted answer
11 votes

The longest possible 0g experience is on a parabolic Flight http://www.asc-csa.gc.ca/eng/sciences/parabolic.asp. As Devil07s great answer explains the time a plane can fly "at 0g" depends on its ...

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1 answers
9 votes
701 views
What clues would have indicated KAL 902 was off course?
6 votes

According to the German Wikipedia the 707 has been equipped with LORAN-C and VOR. It most likely also had (at least one) Gyroscopic Heading Indicator. Wikipedia does not tell something about this ...

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6 answers
14 votes
3k views
How do paraglider controls work?
6 votes

While one of the controls is pulled, the trailing edge gets lowered. This also lowers the aft-portion of the wing cord, increasing the angle of attack. I would expect that this would also increase the ...

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2 answers
4 votes
2k views
What kind of flaps are used in gliders?
Accepted answer
6 votes

modern training gliders (like an ASK 21) do not have flaps. Flaps are used on high performance gliders because the pilot needs some more experience to operate them safely. Gliders, especially ...

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3 answers
8 votes
502 views
Are there areas to avoid while flying formation with a larger aircraft?
6 votes

In higher altitude the wake turbulence moves downward behind the aircraft. So as the pilot of the lighter aircraft behind the bigger you should keep the same level at least. photo by: Steve Morris, ...

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2 answers
12 votes
2k views
In this MD-11 stall test video, are we seeing the tail stalling first?
5 votes

What you see here is not the actual stall of the horizontal stabilizer but the "rudder rattle" that indicates that the stall of the main wings is just about to happen. Airplanes are designed ...

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4 answers
2 votes
762 views
What prevents companies like Cessna and Piper from connecting multiple alternators to a single engine?
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5 votes

You almost answered the question yourself. Having more than one alternator would introduce more complexity not only mechanically but also in the electric system (even if they work correctly). ...

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3 answers
4 votes
2k views
What's the maximum bank angle of a glider?
5 votes

Gliders do not have a technical limitation for the bank angle. Flying with high bank angle (not turning / "knife flight") does not add any force. Therefor the main problem is to maintain enough ...

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7 answers
17 votes
6k views
Why are airplanes described as the safest method of transportation?
4 votes

In my view planes are saver transportation then all others mainly because of this reasons: Physical force range Air produces limited force attacking the fuselage of a plane. There is no such ...

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2 answers
8 votes
370 views
Are there any methods to predict the location of a jet aircraft from its sound?
4 votes

The Problem with localizing air crafts by their sound is: sound is slow. The speed of sound is roughly 300m per second. eg.: If an aircraft is 2km away its sound needs about 6 seconds to reach you. ...

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3 answers
8 votes
3k views
How do large airport refuelling systems work?
4 votes

At Frankfurt/Main airport there is no fuel carried over the airfield to (larger) aircrafts. There is a pipeline system in the floor and the Trucks only carry a pump and a hose to connect the plane ...

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1 answers
2 votes
283 views
Other than fighters, which airplanes can fly straight up?
3 votes

The general answer to your (general) question is: all airplanes can do that. With every air plane you can accelerate to maximum speed pull the stick until you reach 90°. The problem is that not all ...

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4 answers
2 votes
530 views
Engine out over a mountain road. Do you land upwind or up hill?
3 votes

Unless the wind is too strong you should try to land uphill. Tailwind will increase the required length of the runway. When you land uphill you have a significantly larger angle between your glide ...

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4 answers
12 votes
3k views
What type of aircraft is this Airplane in Riga (junkyard)?
3 votes

To me it looks like a Sukhoi jet bomber SU17, SU20 or SU22 https://en.wikipedia.org/wiki/Sukhoi_Su-17 Su-20 RB3 taken from Wikimedia

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1 answers
-2 votes
437 views
Why the safety of airplanes have not been developed long time ago?
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3 votes

We can put in [...] a paragliding emergency where if there is something happens to airplane and it goes down, then we can rescue the life of people. There are some conditions in Air liners that ...

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2 answers
3 votes
1k views
Are high lift wings bad for faster speeds
Accepted answer
2 votes

what if you change the angle of attack for the high lift wing? Pointing the front of the wing downward, thus making it's lift more of a forward direction. The engine of the aircraft creates forward ...

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2 answers
3 votes
259 views
Does contra-rotating vs regular propellers, have any effect on icing?
1 votes

What are the parameters for icing on the wing? temperature air humidity airspeed / pressure The rotation direction of the propeller does not effect any of this parameters. Therefore the propellers ...

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2 answers
-2 votes
294 views
Are there any regulations on how VFR Aircraft have to dodge if they are facing each other?
1 votes

The rule is: both turn (to their own) right. But the more important rule it the half circle flight level rule. This says that: when heading between 000 and 179 degree you fly at an "odd" flight ...

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1 answers
-1 votes
227 views
Why is the velocity vector of this rocket not aligned with the rocket's axis itself?
Accepted answer
0 votes

This is a schematic drawing the rockets orientation is unrelated to the velocity vector. The drawing shows angle of the rocket at the start of its flight, which it would follow without the guidance ...

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3 answers
3 votes
655 views
How do wing tip vortices interact with the airflow on an wing with winglets?
0 votes

Without winglets the wingtip vortices (or wake turbulence) stabilize at about two thirds of the wingspan. The closer the wake turbulence is to the planes body the more drag is induced. Winglets ...

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