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Old 04-24-2010, 03:31 PM   #26
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Hey, lets get the USFS to buy a few of these and put them up during fire season. First hint of a lightning caused fire in the backcountry, and either the UAV discharges a payload of retardant or fixes the location for a manned water drop before it can get out of hand. Put one or two up with IR sensors and look for that lost Scout or missing hiker.
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Old 09-12-2010, 05:50 AM   #27
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Small Polish UAV with electric engine + pusher prop .




Pathetic performance and I only post it because I am interested
in flying wing designs .

More at ....
http://www.flightglobal.com/articles...lish-show.html
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Old 09-12-2010, 06:01 AM   #28
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Prototype UAV with both vertical and horizontal flight .

Small thrusters at wing tips to counteract torque during vertical manouvers.





More detail at ...
http://www.flightglobal.com/articles...st-flight.html
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Old 09-12-2010, 09:05 AM   #29
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We have lots of UAV dedicated companies here in Gainesville florida. I breifly worked at one which was focused on photographic surveilance.

Their spoken market was population density of animals on privite lands. 1) aircraft mechanical upkeep was cheaper, 2) storage was cheaper per month, 3) fuel was cheaper, 4) permission was not needed to have access to privit land, 5) piot was cheaper, 6) initial cost was lower.

The planes were not as exotic. All the parts were "off the shelf". The initial cost in single unit quantity was no more than $250,000. The prototype cost was very low +/- $50,000.

If you are well connected in any industry, you can build a revolutionary prototype for pennies on the dollar.

I created a project to build a 15,000 watt weapon delivery system (actually 2 different ones)

more later...
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Old 09-12-2010, 04:53 PM   #30
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Quote:
Originally Posted by Ross View Post
The "Protector UAV"


Singapore Navy


Israel Navy


I have frequently thought that it would be relatively easy to convert a simple
speed boat for drug smuggling by adding a GPS , electronic compass ,
Arduino and simple steering interface .
Sadly I am not a drug smuggler.
UAV = Unmanned AQUATIC Vehicle.
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Old 09-30-2010, 06:50 AM   #31
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The police are trying out UAVs here in our area now. There is an article about it in our news paper this morning. It is written in German, but there is also a picture showing what they are thinking of using. More than one is being tested now.

http://www.ln-online.de/artikel/2859...lugdrohnen.htm
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Old 09-30-2010, 02:07 PM   #32
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It will not be long before UAV's take over for helicopter in police chases and surveillance. Cheaper, faster to deploy, (open the trunk of the car, the back of the SUV, and fly) safer, and quieter. Imagine a small UAV being used to deploy mic's and small cameras during a barricade or hostage situation, as an overhead observer during a warrant service or searching large areas for a lost child.

We cannot unring the bell, they are here to stay. Folks need to get out in front of this new technology and ensure that it is being deployed in such a way that our privacy is not jeopardized, but we should embrace a very cost effective and what could be a life saving public safety tool.

I envision a time when large malls and big box stores employ them to surveil parking lots, especially during the holiday season to curb theft, etc. Imagine a small UAV employed to deter auto-theft and robbery, snapping overhead pictures of a suspicious person, being used to direct security or law enforcement personnel to a specific location, using an IR camera to find a would-be rapist in the dark waiting for a victim. Add a speaker to the unit, use it to warn patrons and/or inform the individual that he/she is under observation, etc. The positive uses are nearly endless, but the potential for abuse demands an informed and alert public.
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Old 09-30-2010, 02:32 PM   #33
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can they gather energy at high-voltage ~10m high cables
(Hochspannungsleitungen)
or automatically search and use upwinds
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Old 10-01-2010, 08:17 AM   #34
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Insect cyborgs
Give new meaning to "I wish I was a fly on the wall "

Presumably predation by birds will be more expensive than detection
by the enemy .





Quote:
The HI-MEMS program is aimed at developing tightly coupled machine-insect interfaces by placing micro-mechanical systems inside the insects during the early stages of metamorphosis. These early stages include the caterpillar and the pupae stages. Since a majority of the tissue development in insects occurs in the later stages of metamorphosis, the renewed tissue growth around the MEMS will tend to heal, and form a reliable and stable tissue-machine interface. The goal of the MEMS, inside the insects, will be to control the locomotion by obtaining motion trajectories either from GPS coordinates, or using RF, optical, ultrasonic signals based remote control. The control of locomotion will be investigated using several approaches. These include direct electrical muscle excitation, electrical stimulation of neurons, projection of ultrasonic pulses simulating bats, projection of pheromones, electromechanical stimulation of insect sensory cells, and presentation of optical cues with micro-optical visual presentation. The intimate control of insects with embedded microsystems will enable insect cyborgs, which could carry one or more sensors, such as a microphone or a gas sensor, to relay back information gathered from the target destination.

HI-MEMS derived technologies will enable many robotic capabilities at low cost, impacting the development of future autonomous defense systems. The realization of cyborgs with most of the machine component inside the insect body will provide stealthy robots that use muscle actuators which have been developed over millions of years of evolution. The basic technology developed in this program could also be used as a biological tool to understand and control insect development opening vistas in our understanding of tissue development, and provide new technological pathways to harness the natural sensors and power generation from insects.
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Old 11-20-2010, 03:51 AM   #35
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Quote:
Israeli design is the IAI Panther family of tilt-rotor UAVs. Two versions of the Panther are already flying, the larger 65kg vehicle is proposed for the Israel defense Forces ‘brigade UAV’ program currently underway. Yet IAI has high hopes for the patented three-prop design, scaling up the current version to a helicopter size vehicle capable of carrying two passengers or an equivalent weight in cargo. The current vehicle is powered by electrical motors but the heavier versions could employ more efficient internal combustion engines. An interesting feature of the Panther is its flexible takeoff and landing configurations – for example, it can takeoff on a short runway with semi-tilted props and, after consuming part of the fuel, land vertically at its destination.
http://defense-update.com/wp/20101013_cargo-uavs.html
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Old 04-07-2011, 07:50 AM   #36
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The craft used to take hi-resolution images of Fukushima .

Probably more radio controlled than a true UAV .

Some sample images shown below .



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Old 04-07-2011, 08:14 AM   #37
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Full story at ...
http://www.defensereview.com/ripsaw-...actical-robot/


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Last edited by Ross; 04-07-2011 at 09:02 AM.
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Old 04-10-2011, 04:02 AM   #38
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HAROP, a loitering weapon based on the radar-killer Harpy platform developed by IAI was selected by a number of foreign counties for its persistent, precision attack capabilities.

http://defense-update.com/wp/2010101...-2010-uas.html
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Old 04-10-2011, 01:12 PM   #39
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Arrow Another aquatic vehicle....



http://www.prweb.com/releases/zyvex/...web4658434.htm
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Old 04-10-2011, 01:36 PM   #40
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Nice. Graceful over the water, just had to post this one 2

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Old 06-11-2011, 12:40 AM   #41
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Arrow Japanese ball airborne drone

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Old 06-12-2011, 04:25 PM   #42
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Interesting. No airfoils, nor rotary wings. Looks like a straight fan, directed thrust, the brute force approach to flying. Also, it looked electric. One has to wonder about flight duration. At least this one's small enough that a 12 gauge should handle it just fine.
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Old 08-05-2011, 07:11 AM   #43
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When ? is my only question .

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Last edited by Ross; 08-05-2011 at 07:20 AM.
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Old 08-07-2011, 04:39 PM   #44
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Arrow

http://www.israeldefense.com/?Catego...&ArticleID=543

The “Air Mule” Takes off


Quote:
Dr. Rafi Yoeli, company CEO and the guiding light behind the initiative, believes that this type of UAV will be able to fly to designated locations; navigate by means of a pre-fed computerized flight program and GPS systems; and land independently. Supplies will be unloaded at the landing site for troops waiting for the UAV. Wounded can be harnessed to special compartments on the sides of the vehicle and then “launched” to an evacuation point.

The “Air mule” is compact: six meters long and two meters wide. Its Turbomeca Ariel jet engine drives two internally enclosed propellers that vertically lift the vehicle and cargo.
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Old 11-18-2011, 08:50 PM   #45
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Arrow Tandem-wing drone design from the United Arab Emirates

http://english.alarabiya.net/article...18/177839.html


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Old 11-19-2011, 12:39 PM   #46
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Huh. They're two different aircraft.

Doesn't look like much propeller, does it?
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Old 11-19-2011, 05:51 PM   #47
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Arrow

Quote:
Originally Posted by dharma View Post
Huh. They're two different aircraft.
No idea what you mean.
----------
Quote:
Doesn't look like much propeller, does it?
Yeah, it does look tiny. But drones are built for extremely efficient sustained flight, not speed and acceleration.
----------

Here is another article with more detail.

http://www.ainonline.com/?q=aviation...dubai-air-show

The tandem wing design is interesting. It offers a lot more lift while keeping the wingspan shorter and keeping drag low. This means the ability to take off in much shorter distances, increased payload and better fuel economy. These things are usually conflicting goals. STOL aircraft tend to have a lot of wing area and high drag, while efficient fliers have a smaller wing area and far higher takeoff speeds to achieve less drag. This is a neat solution that gets around that usual tradeoff. Burt Rutan has a couple tandem wing designs in his line of aircraft. It is good to see others seeing the advantages they offer.

Last edited by Ought Six; 11-19-2011 at 05:59 PM.
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Old 11-19-2011, 06:24 PM   #48
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Some good images of the tandem winged drone and info on its weapons

UAE's 30kg Namrod is a GPS/inertial/IR terminal guidance missile which is powered by a small jet engine with maximum speed of 1000 kilometres per hours and a range of 60 kilometres .
http://globalmilitaryreview.blogspot...med-drone.html

Good images

Another unusual feature of the United 40 is its hybrid powerplant, which comprises a primary 120-hp Rotax 914UL engine driving a pusher propeller in the tail, augmented for takeoff and climbout by an 80-hp electric motor mounted further forward.
http://www.militaryphotos.net/forums...ng-armed-drone
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Old 11-19-2011, 06:55 PM   #49
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Arrow

Quote:
Originally Posted by Samen View Post
Some good images of the tandem winged drone and info on its weapons

UAE's 30kg Namrod is a GPS/inertial/IR terminal guidance missile which is powered by a small jet engine with maximum speed of 1000 kilometres per hours and a range of 60 kilometres .

Good images
http://globalmilitaryreview.blogspot...med-drone.html
Yeah, good idea to save money by simply using an inexpensive artillery shell as the warhead.
----------
Quote:
Another unusual feature of the United 40 is its hybrid powerplant, which comprises a primary 120-hp Rotax 914UL engine driving a pusher propeller in the tail, augmented for takeoff and climbout by an 80-hp electric motor mounted further forward.

http://www.militaryphotos.net/forums...ng-armed-drone
Also interesting. This implies that the drone must have a battery pack for the electric motor. I wonder if it uses the electric motor as a generator to recharge its batteries in flight?
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Old 11-19-2011, 07:45 PM   #50
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The electrick booster caught my eye, could it be some sort of supercapacitor battery / ultracapacitor the Amps for 80 hp from a battery pack would would come with so much weight not funny, eliminating weight is number one and saving in fuel weight for take of and the weight on a engine for the extra 80 hp could be the key

Im not up to on how much a 80 hp say 50 time use x 10 minutes electric, weight critical motor weighs.... but would imagine less than 2 extra rotaxes in the airframe.


http://en.wikipedia.org/wiki/Electri...ayer_capacitor

Last edited by Samen; 11-19-2011 at 07:51 PM.
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