HobbyKing.com New Products Flash Sale
Posted by Luis Moya | Today @ 09:47 AM | 99 Views
Wing tips butted at the root shows a tiny bit of space between them hence a littly washout.
Posted by phil alvirez | Today @ 09:08 AM | 156 Views
Akin 45: a stretched super kinetic-see: http://www.hobbyking.com/hobbyking/s...dProduct=39853
the concept: i had the idea of using a hotliner, that is sort of a sailplane with clipped wings, to enhance its performance for soaring by enlarging its wing, as it has all that it takes to make a sailplane, including folding prop. got the super kinetic because has a good size and there is a spare wing available. the original wingspan is 32 inches (815 mm) and enlarged it to 45-1/2, and added some dihedral at the tips. 2 1.5mm cf rods at the sides near the nose to reinforce it, and also some carbon fiber veil to the nose and a piece of 2mm steel wire to the stab spar at the center. added area to the rudder. made an exhaust opening at the top of the canopy near the back to improve air flow to cool the motor and esc. i named it Akin 45 because it is a plane akin to the kinect, just longer wing. weight gain from extra wing is 34 grams, and wing area jumps from 130 to 194 sq in. weight without pack is 333 gr and with the 3x850 (72 gr) is 405. balances at 34 mm with the pack at the back of the canopy compartment. no ailerons to start, although i left the servos at the tips for a future use if needed, but i don't expect so. (then i will remove them and cover the slots). tested it and is erratic, as if the cg is too far forward, so i moved the pack to the under compartment an now balances at 39 mm. now is more predictable, but still more tests are needed

...Continue Reading
Posted by phil alvirez | Today @ 09:01 AM | 161 Views
swift gull 35": a compact sailplane. the idea is to use parts already available and stretch the wing to make a sailplane-for soaring.
starting with parts for a mini-swift 24" http://hobbyking.com/hobbyking/store...dProduct=11306
plane: http://hobbyking.com/hobbyking/store...ider_PNF_.html
motor: http://hobbyking.com/hobbyking/store...or_1800kv.html
servos: http://www.hobbyking.com/hobbyking/s...cro_Servo.html
parts: http://www.hobbyking.com/hobbyking/s...0mm_Parts.html
esc: http://www.hobbyking.com/hobbyking/s...ontroller.html
pack: http://www.hobbyking.com/hobbyking/s...poly_Pack.html
prop: http://www.freakware.de/p/luftschrau...105-a66152.htm
well, i had the chance to fly it and needed a lot of up elevator trim, so i checked the decalage and it was 0-0. meaning that there is no angular difference between wing and stab. no good. and it balances at 33%. so i decreased the stab incidence and tested it. this time it came with a lot of down elevator trim so this means i went too far so i went back to half of the amount and this time came out with no trim, so this is the right decalage. finally! i have learned that some times foam planes misbehave because the fuselage is bent during manuacturing and their tail incidence is changed. also reduced the rudder area a little bit (that i increased before) as it was overly sensitive. the motor i used is not powerful but it climbs at about 30 degrees. if i can find a motor that is more powerful, weighs the same and is same dimensions, i will try it.
Posted by brokenspar | Today @ 07:46 AM | 211 Views
I built this Goldberg 1/2A Blazer in the summer of 1974 and flew it many times as a glow-powered free flight. After over 40 years of storage, the old girl was getting a bit tattered.

I stripped off the old silkspan tissue with acetone to reveal the badly warped structure. Reinforced things with gussets and a bit of carbon fiber at the center section joint, covered the fuselage with silk and shot on a coat of automotive primer as filler. Recovered the wings with heavy grade tissue and brushed on a coat of nitrate dope. Increased the fin area by 50% on the advice of others here on the forum (thanks Franny) and shot the fuselage and fin with Krylon flat white.

Motor is a Chinese brushless and battery is a 750 ma-hr 2-cell lipo.
Posted by oomodel | Today @ 06:01 AM | 272 Views
New Arrival: Tarot Electric Retractable Landing Gear

We've all know about tarot's quadcopters, and we also know the problem with the landing gears when we want to make better videos with them, or with other multicopters, now this will no longer be a problem at all, the tarot electric retractable landing gear has just come out, for detailed information:
http://www.oomodel.com/tarot-t-serie...0-p-67132.html

This new retractable landing gear has the highest degree of product integration among similar products at present , the overall design is simple, easy for installation, with small space. Exclusive ordered large torque motors, reliable and durable.

It's suitable for Tarot T810 / T960 / T15 / T18 / 810sport / 960sport and other multi-axis aerial vehicles, so this will definitely be a good news for many fpv lovers.
Posted by Dr.Tom | Today @ 04:54 AM | 324 Views
Snimke iz zraka - Showreel 2014 (5 min 54 sec)

@ 2.7K
Posted by aaronkirk | Today @ 03:56 AM | 363 Views
New digital RGB led lights, APA102 LED,sharing the apa102 led datasheet , which control system can work with them?
Posted by RickC_RCAV8R | Today @ 02:13 AM | 460 Views
Gentlemen :

This afternoon saw me salvaging parts from my old inkjet printer in search of nylon gears for use in my V22 Osprey project . I found quite a few of them ; some may be just what is needed . I also ran across a couple of micro-mini sized electronic limit switches belted motor drive units and a few other useable goodies .

The most curious unit that I ran across was the ink pump unit . This pump design is patterned after the medical kidney dialysis type whereby silicone tubing is used . The operation of this precision pump uses an electric motor to rotate an armature which has nylon pinch rollers mounted to it . These pinch rollers squeeze the liquid thru the tubing to motivate it . Perhaps this type of pump could be used to move nitro based fuels instead of water based ink .

I cleaned up this small 1 1/2" x 1 1/8" pump with warm water and then connected it to a small DC motor for testing . This baby is capable of moving a LOT of liquid ! With precise flow . When the motor is stopped , so is the flow . Immediately with no drips or anything . Perhaps something like this could be used in larger scale nitro planes . 2 separate pumps in this single package . Twins anyone ?

I am seriously thinking of using these guys as a closed circuit liquid ballast controller to be able to change the CG of my V22 Osprey while in flight . The CG transition from hover to full forward flight modes problem . A simple pill bottle tank system and clunks with this kind of pump may be worth considering . I would use the servo motor circuit from the hand crank flashlight guts as a reversible , proportional flow controller . Hmmmm.

Color me crazy , but modeling parts are where you find them .

Regards to All flyers : RickC_RCAV8R
Posted by JureZ | Today @ 12:39 AM | 532 Views
just to get my blog started, here is a link to my flickr RC album:

Jure Z : my flickr album

click on the link above to see pictures and movies of my airplanes and equipment.
Posted by billbabin | Yesterday @ 11:46 PM | 558 Views
Last Wednesday I finally went to Whidbey Island and picked these planes. I am still trying to decided either to keep them, or to sell them.
I guess I should put electronics in them and fly them at least once....Continue Reading
Posted by mjnco | Yesterday @ 10:18 PM | 580 Views
Ran out of fuel at end of video!
Blanik solo (3 min 6 sec)

Posted by TScott1118 | Yesterday @ 10:15 PM | 590 Views
After a few days hiatus I'm back in business.

I decided to use a plywood control horn for the rudder, so I cut a sliver out of the rudder and used thin CA to glue it in. Also added some fiberglass to the back of the rudder horn to firm things up a bit.

I picked up some 400 grit wet dry sandpaper at True Value and gave the whole airframe one more thorough sanding. Then cleaned it with my tack cloth.

So now it's time to start covering. I'm using Ultracote Lite transparent white and red on the wing. On the fuse I'm using some leftover white Parklite. So I'm going to limit the finish to 2 colors and keep it simple. One of my easiest to see thermal ships is done in this color scheme.

I'm getting the hard part over with first. The area where the elevator goes. There's a bunch of nooks and crannies, and there's also lumpy fiberglass. Most of it will be hidden by the elevator, but I'm covering all of the bare wood none the less.
Posted by dys08 | Yesterday @ 10:14 PM | 613 Views
DYS has announced the brushless motor BX2212-920KV which has same function with DJI's, can work with DJI phomton.

From the announcement until now, this motors get good feedbackS from the clients for the excellence performance. DYS also provide the corresponding propeller 9443 with carbon fiber or ABS material to meet different clients' requirements.

Motor data as following,
KV--920
Configu ration---NP
Stator Diameter---22mm
Stator Length---12mm
Shaft Diameter---3.0mm
Motor Dimensions(Dia.*Len).---Φ2215mm
Weight (g)---28g
No.of Cells(Lipo)---3-5S
Max Continuous current(A)---30A
Max Continuous Power(W)---318W

Magnet specification is 40 uh, the bearing NSK, and the core material is 0.2 mm thick ultra-low loss material, with rotor balancing process, enameled wire can be 220 .

Posted by XQPOWER | Yesterday @ 10:09 PM | 579 Views
No.1 Brushless servo XQ-S5650D (270CC--300CC)

Weight:177.5g (6.25oz);
Gear type:Metal Gear;
Speed:0.20 sec/60 at (9.6V)
0.18 sec/60 at (12.0V)
Torque: (667 oz-in)48kg.cm.at(9.6V)
(833 oz-in)60 kg.cm.at(12.0V)
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Description:

No.2 Digital servo XQ-S4330D (150CC--170CC)

Weight:56g 0.2(1.46oz);
Gear type:Titanium Gear;
Speed:0.15sec/60 at (9.6V)
0.13sec/60 at (12V)
Torque: (340 oz-in)24.5kg.cm.at(9.6V)
(428 oz-in)30.8kg.cm.at(12V)
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Description:


No.3 Digital servo XQ-S4116F (for F3A competition and 3D Aerobatic)

Weight:56g 0.2(1.46oz);
Gear type:Titanium Gear;
Speed:0.08 sec/60 at (7.4V)
0.10sec/60at (6.6V)
Torque: (208.3 oz-in)15kg.cm.at(7.4V)
(180.5 oz-in)13kg.cm.at(6.6V)
...Continue Reading
Posted by Zhiyun Tech | Yesterday @ 09:42 PM | 642 Views
3-Axis Handheld Stabilizing Gimbal for GoPro

Feature:

1.Built-in high precise gyro, accelerometer and multi- mcus, the product can sense and reduce vibration instantly. The camera can keep horizontal and tilt attitude under moving and spinning condition.

2.Easy and simple to use. The product is compatible with LCD BacPac without changing parameter.

3.Smart power management. It takes 120mA only under motionless condition (without LCD bacpac).

4.It equipped with two batteries and one battery charge,Each battery type is 18350, and capacity is 900mAh. The working time is around 4 hours.

Different Modes Instruction;

1.Heading Following Mode: Pitch and roll are locked. Heading rotates smoothly follow the direction of the handheld.

2.Locking Mode: Heading, pitch and roll are locked.

3.Heading and Pitch Following Mode: Roll is locked. Heading and pitch rotate smoothly follow the direction of the handheld.
Posted by jetpilotrich | Yesterday @ 09:21 PM | 690 Views
The all New AirEpic / HSD Super Viper coming soon to Banana Hobby...

I just completed this Full 4 part video series that takes you from unboxing, to building/setup, and then out to the flying field...

This is a giant size EPO receiver ready model. It is extremely well engineered and easy to fly! Features a 105mm EDF unit, 1100kv brushless outrunner motor, All aluminum retracts, Flaps, & Reverse Thrust!

Complete Video SERIES available on the RCINFORMER YouTube Channel....

Here is the link for the video Series:

https://www.youtube.com/channel/UCdn...I-2wAcC90xODrQ
Posted by jetpilotrich | Yesterday @ 09:13 PM | 669 Views
I made this short video demonstrating how to separate your nose wheel steering servo from your rudder servo and trim them independently!

Video available on the RCINFORMER YouTube Channel....

Here is the link for the video:

https://www.youtube.com/channel/UCdn...I-2wAcC90xODrQ
Posted by jetpilotrich | Yesterday @ 09:08 PM | 673 Views
Hey guys check out the NEW FLYSKY FS-i 10

10 Channel radio.... Sneak Peek video available on the RCINFORMER YouTube Channel....

Here is the link for the video:

https://www.youtube.com/channel/UCdn...I-2wAcC90xODrQ
Posted by PittSpecial | Yesterday @ 07:26 PM | 764 Views
My buddy Gerry (simano) flew his this afternoon ( approximately at 3:03pm Eastern) with 12-MPH + Winds and most of it was cross-wind with referenced to the runway strip.

A few days ago he ordered two brand new Admiral (MotionRC) 3-Cell, 2200mAH, 35C discharge, Lithium Polymers and he flew one of those battery packs today with me as a witness and I video recorded the flight.

To my pleasant surprise this "New" battery pack transformed this model into a true Mustang!! Wow, I just could not keep up with the camera and most importantly, I have never seen Gerry with such an Ear-To-Ear smile while flying any model.

I am now a "true" believer of AS3X technology & stabilization as you will see the landing phase of this video capture and watch the landing with a high degree of Cross-Wind and just watch (Slow Motion) how the Electronics provide that extra level of assistance in a rather horrific windy conditions to make the model look like it is flying in calmer conditions and best of all, it made that landing look like cake walk for I would never try it in any of my models considering the windy conditions and cross-wind.

Here is the VIDEO Footage (Go Full Screen)!

E-Flite Dallas Doll P-51D Mustang 10-24-2014 (6 min 18 sec)