Chinese UAV/UCAV development

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plawolf

Lieutenant General
We may well be coming to an age where US projects get higher priority after China has pioneered the concept and proven that it is feasible to deploy it.

I wonder if the same charges of copying would be applied to the US, as it was done to China when the same thing happened, but only with the roles reversed, in the past. :p
 

delft

Brigadier
In many aircraft the useful load is carried in the fuselage :) and the fuel is mostly carried in the wings. In that case an important design concern is the wing stress with maximum load in the fuselage and no or little fuel in the wing. For this aircraft the useful load - antennae, electronics - can largely be carried in the wing while there is space for fuel in the two fuselages. This allowed a significant saving in wing weight - and in the fuel system weight.
 

Blitzo

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Via flateric, finally the original concept and specs and mission plan for the design which eventually became Divine Eagle.

Near space, long-endurance unmanned aerial vehicle reconnaissance combat Integration
Li Jun, Huang Haifeng, Mu Xia, Liqing Peng (School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072)
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some of the original specs were:

55m wingspan, 28.5m length, 7m height
27 ton TOW, 10.9 ton empty weight
24 hour standby time at 5000km radius
Cruise speed of mach 0.85, standby speed of mach 0.78
1.2km take off distance and 1km landing distance
also, twin engined...

The concept was also meant to have a strike capability... and possibly modified for unmanned bomber and unmanned tanker roles.

I'll be very interested to see the overall dimensions of the actual Divine Eagle and a view of the engine or engines to see how much they may have compromised from the original concept. Clearly they've ditched some of the original stealth requirements for a slightly more conventional but still very unorthodox aerodynamic arrangement.

The way they describe the use of two or three such UAVs operating in concert as seamless surveillance against opposing CSGs is very much how I imagined such a UAV would work.

eF2Cvl8.png
 

shen

Senior Member
The paper describes a complicated active drag reducing system using bleed air over the wings to cancel trailing edge eddies. I doubt we'll see that in the prototype, but endurance will suffer.
 

williamhou

Junior Member
As a DJI user, I've just received newsletter on their latest civilian UAV today. It's capabilities and flexible mission payload is a major departure from their previous UAVs which all focused on photography & filming, despite I have long expected them to make the move, as they can be so much more capable than taking photos.

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As you can see in the pictures, it's software is fully customisable and the UAV can mount a range of different sensors, including thermal imaging, a new built in automatic inflight obstacle avoidance system that constantly scans its surroundings and adjust flight path (with additional terrain data I would think it could perform very precise Terrain Contour Matching, much more precise than any current cruise missiles fielded, despite being much slower), the options are limitless.

And the best of all, in comparison to current military models, it costs next to nothing and it is available to everyone.

It is small and light and can be carried anywhere by a single person, it is easy to operate with intuitive interface that any adult or children can learn to fly in minutes. There is nowhere to hide from DJI's latest UAV carrying a thermal imaging camera up in the air - one can be programmed to do anything you would like it to the target, autonomously.

For anyone not already familiar with DJI, they are the biggest civilian UAV maker in the world by any measure, with revenues of about $1bn and the company valued at $10bn in latest financing (IMO they are significantly undervalued given their potential). They were founded in 2006 by 3 students.
 

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broadsword

Brigadier
As a DJI user, I've just received newsletter on their latest civilian UAV today. ......

Which model are you using? I understand DJI has not yet released their proprietary follow-me feature. Do Phantom users have to use third party addon if they need one? Is there any information on the range, endurance and payload of the Matrice 100?
 

broadsword

Brigadier
Which model are you using? I understand DJI has not yet released their proprietary follow-me feature. Do Phantom users have to use third party addon if they need one? Is there any information on the range, endurance and payload of the Matrice 100?

DJI's new Matrice 100 drone avoids obstacles and flies for 40 minutes at a time

By
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June 8, 2015

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A project at Shanghai's Fudan University demosntrates Guidance's capabilities by identifying illegally parked cars from above

Getting to grips with piloting a drone can involve a steep and expensive learning curve. How these vehicles can be made to avoid crashing into stuff is a question that has plagued the technology from the outset. But the world's largest drone maker DJI says it has now developed a solution. Simply called Guidance, its obstacle avoidance system integrates with its new developer-focused Matrice 100 quadcopter and promises to make busted rotor-blades a thing of the past.
Building functional and reliable obstacle avoidance systems has been something of a focus for drone-makers looking to get out ahead of the pack. Last year's
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, which raised more then US$1 million on Kickstarter, delayed shipping as it worked to refine its promised obstacle avoidance system. In February this year, a team of Swiss technologists won the US$1 million Drones for Good competition with a quadcopter that flies
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to safely travel through confined spaces. There are even obstacle-detecting sonar systems in the works that can be
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to make them safer to fly.

So perhaps it was just a matter of time before industry heavyweight DJI came to the party with what it claims is the first commercially-available collision avoidance system for drones. Guidance relies on an array of ultrasonic sensors and stereo cameras to detect when the drone flies too close to objects, with this range configurable and can extend to 20 m (65 ft).
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It consists of a programmable hardware attachment that DJI says can be mounted to any robotic system with USB and UART connection ports. As proof of the system's capabilities, the company points to a project at Shanghai's Fudan University, where researchers combined Guidance with Intel processors to identify illegally parked cars from above.

The project is designed to help city workers sniff out dodgy parking jobs, all while the drone avoids lamp posts and trees. The system works by determining the position and orientation of a parked car, and if deemed unsatisfactory, snapping a photo of the license plate and relaying it back to a central database.

DJI rolled out Guidance as part of a wider announcement detailing, among other things, its new Matrice 100 quadcopter for developers. Where its earlier drone models have generally been designed with specific users in mind (largely beginner to professional aerial photographers), the Matrice 100 is billed as something of a blank canvas for researchers to bring their own ideas to life.

Ready to fly out of the box with dual battery slots and a whopping 40 minutes flight time, the Matrice 100 features several communication ports, power supply leads and expansion bays for extras components, so that additional hardware can be fixed to the drone to afford it new functionality.
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"We're excited to see how researchers and developers will use this platform to test how aerial technology can be used for agriculture, inspection, search and rescue and several other fields," says Frank Wang, DJI CEO.

DJI also announced SDKs for both the
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and
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quadcopters, aimed at offering developers with bright ideas a way to bringing innovative applications and functionality to the drones.

DJI will begin shipping both the Matrice 100 and Guidance system at the end of June. The Matrice 100 will be priced at $3,299 and Guidance will cost $999.


Source: DJI
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