Robert Werner's user avatar
Robert Werner's user avatar
Robert Werner's user avatar
Robert Werner
  • Member for 8 years, 6 months
  • Last seen more than a month ago
17 votes
3 answers
3k views

Can the plane Celera 500L be eight times more fuel efficient than a jet of similar size and capacity?

11 votes
3 answers
1k views

What engine of the period 1855-1865 would have lifted one of Wright brothers' aeroplanes off the ground?

10 votes
2 answers
4k views

What is the maximum theoretical lift of a plane as a function of engine power and surface of the wings?

10 votes
5 answers
1k views

Can a pendulum stabilizer for airplanes really work?

9 votes
2 answers
927 views

Comparing the Lilienthal and Wright gliders, which one had a better glide ratio?

8 votes
3 answers
428 views

Is there strong evidence that Clement Ader flew a plane on Oct. 9, 1890 or at any date before 1897?

7 votes
3 answers
441 views

Did John Stringfellow ever build an aeroplane, powered by a steam engine, that really flew?

6 votes
1 answer
717 views

Can you identify this plane?

6 votes
2 answers
2k views

The stronger the headwind the faster the plane flies if it is in the reverse command regime?

6 votes
1 answer
1k views

What is the incidence angle of a propeller in the terminology of the Wright Brothers and how did they obtain it?

6 votes
0 answers
611 views

What was the exact propeller geometry of the 1903 Wright Flyer? A modern replica failed the test T = D in a NASA wind tunnel [closed]

6 votes
1 answer
530 views

Is this a good or a bad propeller?

5 votes
2 answers
808 views

Does Smeaton's coefficient have a modern accepted value or it is dependent of the air density?

5 votes
1 answer
1k views

Who invented the canard wing?

5 votes
1 answer
441 views

How did Wilbur Wright create and use the formulas he mentions in his letter to Octave Chanute?

5 votes
1 answer
1k views

Does a 1lb crow expend only 7.68 Watts to fly at 37 km/h?

5 votes
1 answer
962 views

What was the average duration of a Me-262 combat mission during WWII?

4 votes
5 answers
1k views

Why does this calculation show Gustave Whitehead's propellers were more than 100% efficient?

4 votes
2 answers
18k views

What is the correct formula to calculate propeller efficiency?

3 votes
2 answers
417 views

What was the earliest plane in push-pull configuration that flew or at least took off?

3 votes
1 answer
558 views

What is the most simple plane lift equation that gives realistic solutions?

3 votes
0 answers
236 views

How did the Wright brothers measure the maximum airspeed of their 1904 plane?

2 votes
1 answer
144 views

Is there independent evidence that the Wright brothers celebrated Roosvelt's election in 1904 by a flight of over 5 minutes?

2 votes
0 answers
186 views

Was Stringfellow's 1848-1868 motor a revolutionary aviation engine or just a useless low efficiency toy which never powered a flying model plane? [closed]

2 votes
1 answer
380 views

Regarding the 1902 Wright glider. Why is the airspeed, Va, calculated adding the ground speed, Vg, and wind speed, Vw?

2 votes
3 answers
599 views

What is the practical usefulness of a small home made wind tunnel?

2 votes
0 answers
64 views

What is the best reliable weight/power ration achieved by a pre-1911 plane?

1 vote
2 answers
290 views

Can a slow small plane, flying at a few meters above the ground, drop to the ground if the headwind abruptly stops? [duplicate]