X-Wing - Raffinert utgave

Flying Transformer

Konseptet er egentlig ikke nytt. Sikorsky og DARPA modifiserte en S-72, men det viste seg at computer power ikke hadde kapasitet på den tiden til å ta vare på kontrollproblemer. Dette, kombinert med plattformen som ikke var særlig godt egnet, førte til at prosjektet ble kansellert i 1988. Nå er det på`an igjen....

Posted on March 1, 2013 by The Editor

The Naval Research Laboratory (NRL) has developed a patented system and method of transitioning an aircraft between helicopter and fixed wing flight modes.
It’s called the Stop-Rotor Rotary Wing Aircraft. This one in particular is a multi-purpose unmanned aircraft that can do what only toys used to be able to do; change shape.
What does that mean?
This system turns a plane into a helicopter. Now, my first thought when I saw this was one of those James Bond car/plane/helicopter/dirigible/spaceship vehicle things that he has (Aston Martin notwithstanding). This is clearly a more reasonable approach to that concept, and arguably less costly. Sorry, Q. They’re like turbo transforming UAS.
What does it do?
The stop rotor aircraft is capable of both a helicopter mode – vertical takeoff and landing (VTOL) – and efficient high speed fixed wing flight. How? By flipping the left wing/rotor blade 180 degrees between flight modes (obviously). Conversion between flight modes will take about 1-2 seconds and simulations indicate altitude deviations of less than 50 feet.
It’s also practical from a fuel standpoint. Under sponsorship of the Office of Naval Research (ONR), a prototype battery electric aircraft is being developed that is capable of over 30 minutes flight duration and a cruise speed of 100 knots. Hybrid power systems could provide much greater duration and range.
How can this help?
Yes, let’s talk about the benefits. Being able to switch flight modes on-the-fly (I couldn’t help myself) is more than just a little advantage. If cartoons have taught me anything, it’s that those skills come in handy a lot. Also the 38 inch long removable payload bay can carry up to 25 lbs. We’re talking about a small, manoeuvrable, energy-efficient aircraft that can deliver small loads when necessary.
This aircraft can operate at efficient high speeds, and at long range unmanned aircraft without runway or other large launch and recovery systems (such as catapults and nets). There would be reduced wear and tear compared to a regular helicopter since rotary wing flight time will typically be minimized. It’s also smaller. Smaller is good.
The gas turbine propulsion could enable efficient high subsonic cruise at altitudes not practical with pure rotary wing aircraft. So really, it can boldly go where few rotary wing aircraft have gone before.
Will the Stop-Rotor Rotary Wing Aircraft help me to defend the planet against evil transforming robots and speak to me in a powerful baritone? Probably not. Would I be thrilled and amazed to see it convert from plane to helicopter mid-flight? Every single time.
The fact that this is useful and awesome is what makes this whole thing so much better. This can be used on unmanned aircraft missions that require the flexibility of VTOL combined with high speed and long range.

- See more at: http://www.uasvision.com/2013/03/01/flying-transformer/?utm_source=Newsletter&utm_medium=email&utm_campaign=f719595f2c-RSS_EMAIL_CAMPAIGN#sthash.u7X7ckGr.dpuf