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UDI U13A CAMERA HELICOPTER
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UDI U13A R/C Camera Helicopter, retail $41.75 (www.amazon.com...)
Manufactured by UDI
Last updated 11-27-14

This isn't a flashlight, household lamp, Christmas light set, or other thing that glows, but it *DOES* have a bunch of flashing LEDs on the sides of its fuselage and along the length of its tail boom, so what the hey.

This is only the ninteenth {?} R/C helicopter to have graced these pages (out of at least a thousand other products) over the last fourteen-plus years this website has been online, so please play nice and don't bite my head off to tell me that I forgot some important detail.

I love things that fly; that's why I took the bate and also why I added a seperate section titled "PRODUCTS DESIGNED TO FLY" on my website a number of years ago. I was also attracted to two things that this heli has that many others don't...

1: It has all kinds of colorful blinking lights on its fuselage (this word is definitely *NOT* pronounced "fyoo SELL' uh jee" as Drake Parker from the TV program "Drake and Josh" would pronounce it; the word is pronounced "" ) and tail boom.
2: It has a gyro -- that means it's easy to fly even for a "craptastic" pilot like me.

This is a medium-small, lightweight (as a helicopter in a metal & plastic body goes), easy-to-fly 3-channel remote-controlled outdoor (and indoors with a large enough space) helicoper. Its remote uses RF (radio frequency) radiation.

It has a coaxial design to minimise those "out-of-control" moments, and make flying possible even with a busted tail rotor (though if the tail rotor is completely gone, moving forward & backward will no longer be possible).
"Coaxial" in this case means that it has two sets of main rotor blades; one set of blades spins in the opposite direction as the other. Doing things this way virtually eliminates that wild, out-of-control spinning that plagues many other non-coaxial R/C helicopters and makes this one exceptionally easy to fly even for beginner pilots!!! It also has a gyroscope (very commonly abbreviated to just "gyro") in it that makes this heli exceptionally stable and lets slow-speed maneuvers and hovering be accomplished much more easily than it would be in R/C helis without a gyro.

Size of product w/hand to show scale

SIZE

This toy is remarkably easy to use for a helicopter...here's how to get it off the ground:

As with any rechargeable product, charge it first (see directly below), and then you can pretend to fly a dragonfly (well, that's what the kitty cat would think it was if it were designed to be flown in a small living room).

1: Place the heli on the ground so that the tail faces you. On the port side (left side) of the UDI U13A R/C Camera Helicopter's body (on the metal part just below and behind the cockpit), there's a red on/off switch.
Slide this switch to the "on" position.
A series of red, yellow, pure green, and blue lights along the sides of the tail boom should come on after a brief delay (after the gyro "settles") and immediately start sequencing (in a "chaser" pattern) and the white LED "headlight" should also come on.

Move several feet away from the helicopter (at least six feet away).

2: On the remote control, turn the "on/off" switch to the "on" position. A fairly loud, single "beep" should issue from it.

3: The yellow-green light on the remote will now come on and start blinking. Push the left-hand stick on the remote control forward and then let it go back. This "arms" the helicopter. If you did this correctly, that yellow-green light will go from blinking to steady-on and the R/C should emit a series of three tones in rapid succession.

4: Gently push the left-hand stick on the remote control forward a second time -- but do so more gingerly this time so that the helicopter doesn't just blast away -- it has a good deal of thrust, so the possibility of it getting away in this manner does exist.

5: The UDI U13A R/C Camera Helicopter should now lift off the ground. Congratulations, you're now a pilot!!!

Reading this web page (about another R/C helicopter) will give you a good idea of the process of flying it.
For additional instructions & tips on how to fly, please read the instructional material that comes with the product.

For additional instructions & tips on how to fly, please read the instructional material that comes with the product.

To take an aerial photograph, press & release the button on the front of the Tx near the lower left with the 'camera' graphic printed next to it.

To shoot realtime aerial video, press & release the button on the front of the Tx near the lower left with the 'video camera' graphic printed next to it. Press & release it again to neutralise the recording of video.

There is a button on the lower right face of the remote: it is to change modes from "beginner" to "master hand" (this is how the furnished instructional materials refer to them -- the legend printed under the button itself reads "Accelerate").
In "default" mode, the tail rotor speed is limited; pressing & releasing this button causes the tail rotor to increase in speed -- thus allowing the heli to fly forward and backward more quickly. This allows beginner pilots to not crash the model at high speeds, while allowing the more experienced pilot the ability to fly faster if they really "feel the need for speed".

There is another button on the lower right face of the remote: this button has the phrase, "Light control" printed next to it. All this button does is toggle the flashing tail boom lights and the headlight on and off; it might behoove you to neutralise these lights during daylight flights to help the flight battery last a little longer.

Turn the UDI U13A R/C Camera Helicopter and remote control off when finished using them.
Same switches as before, but slide them in the opposite direction this time.

The battery in the UDI U13A R/C Camera Helicopter itself is rechargeable and is not designed to be changed; however the batteries in the remote will need to be changed from time to time.

To do this, unscrew & remove the phillips screw from the battery door on the underside of the unit, using a small phillips screwdriver (the #0 from my set of jeweller's screwdrivers worked well here). Set the screw aside.

Remove the battery door, carry it to the top of the basement stairs, and kick it down those stairs into the basement crawling with thousands of hungry piss ants that have to piddle -- they'll think it's something yummy to eat and start chewing on it, but quickly find it unpalatable so that they drag it to the queen, who also finds it distasteful so she pisses on it and instructs the worker ants to do the same...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

Remove the four used AA cells from the compartment, and dispose of or recycle them as you see fit.

Insert four new AA cells into the compartment, orienting each cell so its flat-end (-) negative faces a spring for it in each chamber.

Finally, place the battery door back on, and screw the screw back in.
Aren't you glad you didn't kick that battery door down the stairs to all those hungry, hungry piss ants with full bladders now?

To charge the battery in the UDI U13A R/C Camera Helicopter, take the thin cord that's attached to the "wall wart" charger, and plug the small end into the small circular receptacle for it on the port (left) side of the heli's body located on the metal portion below and toward the rear of where the 'cockpit' would be on a real heli.

Plug the "wall wart" into any standard (in north America anyway) 110 volts to 130 volts AC 60Hz two- or three-slot household receptacle (or "outlet" or even "wall socket" if you prefer).

When the charge cycle is in progress, the red LED on the charger will turn on and operate steadily (e.g it should not blink). When the charge cycle is complete, this LED should turn yellow-green.

You may then safely unplug the helicopter from the charger, and unplug the "wall wart" from the AC receptacle.

Fully charging the UDI U13A R/C Camera Helicopter's battery should give you 6 to 10 minutes of flying time.

This RC helicopter is meant to be used as a toy in a dry area outdoors (or in a large open room indoors), not as a flashlight meant to be carried around all the time, thrashed, and abused; so I won't throw it against the wall, stomp on it, try to drown it in the {vulgar slang term for a fudge bunny}bowl or the cistern, run over it, swing it against the concrete floor of a patio, bash it open to check it for candiosity, fire it from the cannoñata (I guess I've been watching the TV program "Viva Piñata" too much again

- candiosity is usually checked with a scanner-type device on a platform with a large readout, with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; and the cannoñata is only used to shoot piñatas to piñata parties away from picturesque Piñata Island), send it to the Daystrom Institute for additional analysis, or inflict upon it punishments that I might inflict upon a flashlight.

So this section of the helicopter's web page will be significantly more bare than this section of the web page on a page about a flashlight.

The range of the radio in the Tx (RC hobby talk for "transmitter") is not stated at all, but should be at least ~152.40 meters (~500 feet); frequency is stated as 2.4GHz.

The unit has a 3-channel remote control; this allows for forward / backward / up / down / left / right movement (movement on all three axes -- X, Y, and Z). It also has a fully proportional control system; simply meaning that the motor speeds can be varied depending on how far you move the joysticks -- it isn't simply "full power and no power at all" like some other R/C products.

Photograph of its remote control.

Spectrographic analysis of the LED "headlight" in this heli.

Spectrographic analysis of the LED "headlight" in this heli; spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint native emission peak wavelength, which is 453.290nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/46/udiw.txt

Spectrographic analysis of the red LED in the tail boom of this heli.

Spectrographic analysis of the red LED in the tail boom of this heli; spectrometer's response narrowed to a band between 625nm and 635nm to pinpoint emission peak wavelength, which is 626.350nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/46/udir.txt

Spectrographic analysis of the yellow LED in the tail boom of this heli.

Spectrographic analysis of the yellow LED in the tail boom of this heli; spectrometer's response narrowed to a band between 590nm and 600nm to pinpoint emission peak wavelength, which is 592.910nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/46/udiy.txt

Spectrographic analysis of the green LED in the tail boom of this heli.
That small "hump" in the blue is from the blue LED immediately adjacent to this one.

Spectrographic analysis of the green LED in the tail boom of this heli; spectrometer's response narrowed to a band between 520nm and 530nm to pinpoint emission peak wavelength, which is 523.740nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/46/udig.txt

Spectrographic analysis of the blue LED in the tail boom of this heli.

Spectrographic analysis of the blue LED in the tail boom of this heli; spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint emission peak wavelength, which is 452.590nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/46/udib.txt

USB2000 Spectrometer graciously donated by P.L.

Brief video that shows how the Tx (remote control) can be used as a 'homing device' of sorts.

In the first segment, you can hear the remote emit one beep at power-up, and a series of three beeps when the left-hand joystick is pushed up and then pulled back down. This is while the helicopter is turned on.

In the second segment, I neutralised the heli, and the remote emits one beep at power-on, but no additional beeping can be heard.

This video is 226.9347824567 megabytes (26,760,934 bytes) in length; dial-up users please be aware.
It will take no less than seven hundred sixty minutes to load at 48.0Kbps.

ALL OF THE FLIGHT VIDEOS HAVE BEEN MOVED TO THEIR OWN WEB PAGE
SO THAT THIS EVAL. WOULD NOT BECOME TOO CUMBERSOME!!!

TEST NOTES:
Test unit was purchased on Amazon.com on 08-03-14 (or "2014 03 Aug." or even "August 03, Twenty Stick-Crossed-Broken-Sticks" if you prefer), and was received on the afternoon of 08-12-14.

* This word is definitely *NOT* pronounced "fyoo SELL' uh jee" as Drake Parker from the TV program "Drake and Josh" would pronounce it; the word is pronounced "

.

The AC charger is labelled to have an input of 100 volts to 240 volts 50 or 60Hz, an output of DC +4.30 volts, and is able to source 800mA.

UPDATE: 09-19-14
The gay little plastic & metal heli can now no longer spin its tail rotor, so it can no longer be flown. Therefore, the dreadful, " Failed or was destroyed during/after testing

Failed or was destroyed during/after testing

" has been appended to its listings on this website to denote that the product has failed or has become destroyed.

UPDATE: 10-23-14
The wind carried this studly little heli away, so that horrible, awful, dreadful, "

" icon will be appended to its listings on this website, indicating that the product has become lost and is no longer available to me for future analyses or flights.

UPDATE: 11-27-14
I purchased yet another one of these studly little copters because I just love the living tweedle out of it.

UDI

Micro-sized R/C helicopter w/inbuilt camera

LED

10 (1 yellow-green & 1 white in R/C, 1 in charger, at least 7 in helicopter itself)

N/A

Slide switch on/off on both R/C and helicopter

Plastic & metal

N/A

4x AA cells for R/C; 3.70V Li:PO battery in helicopter

Unknown/unable to measure

Very light sprinkle-resistance only

¡¡¡UN FANTASMA ESPANTOSO GRANDE QUE TOMA UNA MIERDA ENORME EN UNA CESTA DE PAPEL USADO PLÁSTICA, NO!!!

Charger, main rotor blades,tgail rotor blade, "dog-bone" main rotor stabiliser, USB card reader dongle, 1GB micro SD card

340mm L x 60mm W x 150mm H

137.90g (4.860 oz.) incl. battery & memory chip

China

Unknown/not stated

UDI U13A R/C Camera Helicopter * www.amazon.com...

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