HAPS ApusDuo flight test

UAVOS, Inc. has performed a series of successful flight trials with High Altitude Pseudo Satellite (HAPS) ApusDuo testing the unique control system. Test flights for the ApusDuo programme confirmed that UAVOS’s type of control allows aircraft with a large wing elongation to fly in unstable atmospheric conditions. The ApusDuo aircraft successfully copes with turbulence, actively changing the bend of the wings.

[@voornaam3191]

This one resembles the Rutan designed Voyager, flying around the earth nonstop, on two engines with a prop. It had flutter problems because those wings were so long and constructed so light, but the pilots were trained to countersteer the oscillations, which is awfully difficult, if you fail, the wing breaks, no kidding. But this means, the design is very good.
Now build it ten times larger, please.

[@louisvanrijn3964]

The flutter in Rutans plane was a mode with a slow frequency in symetric wing bending.
The mode was much caused by the configuration chosen by Rutan. The shown configuration in the video has is much lesser sensitive.
The frequency of Rutans aircraft was slow enough to counterstreer by a human, altough very tiring.. The mode was in highest amplification rate at full tanks and became indifferent and later stable below 75% of fuel. Rutan tested the aircraft to say 60% fuel load so he was not aware of this mode from flight testing.
If the fuel is batteries with constant mass the configuration has flutter, or it has not, as demonstrated.

[@wamorecarneiro4637]

Que projeto incrível !!!... Parabéns a toda equipe.... Grande abraço do Brasil....

[@louisvanrijn3964]

Hi UAVos, Well done, an increadible performance! Reynolds numbers, hence drag, are against you at high altitudes.
Can you tell the audience what the theorectical altitude is, you meet supersonic flow on the wing upper surface? That will be, estimated by guess, 50 km high ?

[@myhive7554]

Good luck!

[@JdIm6fhjLgdWRhn]

FUTURE AIRCRAFT

[@LegendLength]

Can you attach a surfboard to the back of it?

[@iainbradford4254]

Do you need a transponder or do you communicate with ATC?

[@voornaam3191]

Build one yourself, instead of asking those stupid questions. Do you know Jesus?

[@АндрейШишкин-н4ч]

Вопрос : где на Земле место, в котором на высоте 16,5км ветер не дует ?

[@joergjagiella8502]

Genial!

[@thedeadalgorithmmusicchann1994]

There is that dumb fish eye lens again..😂

[@XX-MON9Y]

❤

[@herbertnatanael]

✈️

[@lukasetz994]

a very slow flying plane in a height of 16000m will land somewhere else ;-)