Posted by FeiJi | Today @ 07:03 PM | 2 Views
In making my epp plank wing I had inadvertently made a crushable fuselage - shock absorber when I extended the front of the fuselage by putting a smaller diameter rod inside a larger one. When I crashed nose-on the fuselage collapsed and just wrinkled up the epp foam and the motor just popped off, no real damage. Just hot-glued it all back together again.
Wish I had taken photo of fuselage all crunched up. Hopefully it wont happen again. I had just launched my plank but it was responding to a turn so slowly because the tail was loose and bending back and forth.
Posted by old4570 | Today @ 06:45 PM | 11 Views
Ok , I have been ho-humming over the UMX Whipit DLG for quite some time now .
Well , not exactly jumping on the bandwagon ..
When it first came out , they were not available in The Land of Oz .
So if one wanted one , well you had to pay some horrendous shipping to land one .. ( 80 to 120+ USD )
So while it was a great deal for some , it was not such a great deal for others .
Yes , thats what I have waited for , for a long time . For the Whipit to be a $$ deal I can live with .
$99.99 Ozzi Bananas with free shipping , I can live with that !

Most of the things said about the Whipit were true for me .
The decals have serous air bubbles ...
The screws for holding down the wing , overly tight .
Is the elevator supposed to be glued ? Mine wasn't !
Why does the rudder sort of go left - almost like the plastic rudder grip twists a little to the left (?)

Anyways , fixed the overly tight wing hold down screws ..
Epoxied the elevator ..
Not sure I like the way the rudder is set up ( held by tape )

.. The battery ! ..

I thought I had a battery !
Was from my Eachine 12 , but guess what ?
The plug has the polarity reversed .. ( ?? ) I kid you not ..
I thought I had fried the electronics in the Whipit ..

I pulled the battery apart and re soldered the wires ..
The Whipit lives

Just need some decent weather to go out and Whipit !
I think the rudder will probably come lose on the first landing ( Probably )

My observation from...Continue Reading
Posted by Absaroka | Today @ 05:23 PM | 44 Views
Took the Tundra over at Twilight to see what the lights looked like.
Tundra at twilight (0 min 38 sec)

Posted by biglombo | Today @ 03:49 PM | 70 Views
Devil's bando lands | fpv freestyle italy | drone racing (2 min 10 sec)


The say these are the lands of the daemons and the devil...Horrible stories are told about this place and about what happens here during the night...we just flew few lipos and ran away as fast as we could...


Check awesome products here:
FOXEER: http://www.foxeer.com/
DALPROP: http://dalprop.com/
AIRBOT: https://store.myairbot.com/
iFLIGHT: http://www.iflight-rc.com/
DEMONRC: http://demonrc.eu/

I hope you enjoy and if you like what you see, please subscribe my channel! http://bit.ly/2y4wZgh .....THANK YOU!!!

Find me on facebook:
https://www.facebook.com/biglombo.fpv

Find me on Arivuz:
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Find me on Instagram:
https://www.instagram.com/biglombo_fpv
Posted by Robert | Today @ 01:25 PM | 140 Views
I'm selling most all of my RC gear. Check out the classifieds-search for Robert:

Vario Silence For Sale + radio
Posted by JohnVH | Today @ 12:53 PM | 168 Views
Maiden on a buddies new Freewing Mirage 2000 Tigermeet!

Freewing Mirage 2000C V2 “Tiger Meet” 80mm EDF Jet MAIDEN FLIGHT (4 min 26 sec)

Posted by Gerry__ | Today @ 12:15 PM | 145 Views
Let me know here if you can't get a PM through.
Posted by Pierre_de’ Loop | Today @ 11:10 AM | 190 Views
It's been rather busy few days, but I managed to fly the Kadet and Brigadier at the MARKS R/C field while visiting my father. He's belonged to the club for years, but it was my first visit to their field. I've also managed a few hours in the workshop to continue covering the Poke.
Posted by aaronredbaron | Today @ 07:56 AM | 301 Views
I've adopted a CG Super Chipmunk, and I'm learning about the late, great Art Scholl. From what I can find Art learned about aviation with models, and got into full sized aviation with a determination to learn aerobatics. His classic Super Chipmunk is really a different aircraft than the DHC-1 Chipmunk it was based on. Art clipped the wings and enlarged and changed the shape of the tail. He shortened the fuse and made it a one place instead of two, with a custom bubble canopy. He eventually changed to a different engine layout and added retractable landing gear. There were so many changes to the aircraft it was essentially a ground-up redesign. Few would argue Art's place in aerobatic aircraft design history. How did he get there? Did he just whip out his changes on a full size Chippy and go for it?

We know he licensed his design to numerous model manufacturers, such as mine from Carl Goldberg. I came across a video from 1966 where Art was using a model of his Chipmunk in his aviation class. Whats interesting is its apparent the model is flyable based on details like control horns on the control surfaces, and this version of his design was a very early iteration before he changed to a flat 6 engine. So, I was imagining if I were Art. If I had extensive hobby experience and I wanted to design an aerobatic airplane I was going to fly, it makes perfect sense to build a model and wring it out first.

Perhaps I'm out in left field, but we know Art had a very early version (likely) flyable model around 1966, and he later sold design rights (and plans?) to multiple hobby companies. I'm thinking about taking on my CG Chippy, but I may take a closer look and see if I can build a replica of this early version model.

F-0079 Aerobatic: Ballet in Blue (10 min 19 sec)

Posted by Old_Pilot | Today @ 07:29 AM | 261 Views
Since I'm not going to compete in BBCC 9 (not a conversion contest anymore), I've decided to revise and rebuild my SU-25, taking what I learned from the original build and flight and incorporating that into the new one..here's a pic of the first one
Posted by aben71 | Today @ 05:54 AM | 296 Views
So this started out as a nice smooth flight with my Walkera Rodeo 110 until that last loop when I got it caught in a tree!
Fortunately after a bit of tree climbing I was able to recover my Rodeo 110 and ready to fly again another day

Walkera Rodeo 110 Park Flight Ends In A Tree! (6 min 9 sec)

Posted by FPV.Model | Today @ 02:21 AM | 347 Views
Betaflight Backpacks for only $159.99 Now! Limited 100 pcs!





Betaflight Backpacks for only $159.99 Now! Limited 100 pcs!
Use Code "159BP" at Checkout page. Only in stock at US&EU warehouse now.

p.s. Due to the huge demand, the backpacks in our international warehouse have been out of stock. All the orders made by other countries except US&EU will be placed as pre-orders.
More details: https://goo.gl/dccL2d

Posted by rcheli168 | Today @ 02:18 AM | 349 Views
Features
72-channel u-blox M8 engine GPS L1C/A, SBAS L1C/A, QZSS L1C/A, QZSS L1 SAIF, GLONASS L1OF, Galileo E1B/C
On-board Ultra low noise 3.3V voltage regulator and RF filter for noise blocking
Features an additional front-end LNA for optimized performance and a front-end SAW filter for increased jamming immunity
Build-in embedded GNSS patch antenna, low power consumption
The 15 x 15 mm patch antenna provides the best compromise between the performance of a Right Hand Circular Polarized (RHCP) antenna and a small size to be integrated in any design.
Magnetic sensor QMC5883L integrated

Product Details
Max navigation update rate
Single GNSS up to 18 Hz
2 Concurrent GNSS(GPS & GLONASS) up to 10 Hz
Horizontal position accuracy(GPS & GLONASS) 2.5 m CEP
Velocity accuracy 0.05m/s
Cold start 26 s
Aided cold starts: 2 s
Hot start 1 s
Sensitivity
Tracking & Navigation: –165 dBm
Reacquisition: –158 dBm
Cold start: –146 dBm
Hot start: –155 dBm
Input voltage range: 4~6V
Uart (Tx,Rx) interface for GPS SAM-M8Q
I2C (DA,CL) interface for Compass QMC5883L
Battery for HOT module start
Power LED(Red) & Time pulse LED(Blue)
Dimensions: L20 x W20 x H10 mm
Weight: 7 gram
Supported by INAV/Betaflight/Ardupilot, ect.

Tips
GPS, GLONASS, SBAS, QZSS are enabled by default
Blue PPS LED blinking(1Hz) means 3D fixed
update rate 1Hz & baudrate 9600 default
Baud 9600~115200 supported by INAV/BF/Ardupilot
update rate 5Hz with INAV UBLOX Protocol
update rate 10Hz with INAV UBLOX7 Protocol
Compass Alignment(Arrow forward):
INAV/BF: CW 270° Flip
Ardupilot/Mission Planner: Rotation None
BF doesn’t support GPS position hold and RTH, GPS Rescue mode is supported by BF3.5 or last.
No need compass for Fixed wings with INAV firmware
The scratches on ceramic antenna are the result of tuning the antenna by ublox.

Item Packing
M8Q-5883 module x 1
SH1.0-6P 20cm silicon wire x 1
Transparent PVC Heat-shrink tube x 1

lxrcmodel
Posted by VicT | Yesterday @ 11:34 PM | 392 Views
AR 636 RX in another (larger/heavier) motorglider.
The DX9 spoileron and inboard flap program with flight modes worked very well with the Conscendo Advanced. So I removed a 7 ch RX and installed a 636 RX (Spitfire SAFE) in to my 10 yr old Cularis motorglider and used the program to see the differences. The 2.6 m/102 inch foamy is 4 lbs and 3 times as stiff as the CA. So she is much faster and is not effected by wind as much as the 1.5 m/59 inch 1.4 lb Conscendo.

The Self Level feature worked as well as the Conscendo gyro settings but is a little slower to roll level and to pitch level at all speeds. Full down stab restricts vertical dives to about 40 degrees down and so terminal velocity is much less than vertical. This makes high altitude dives more conservative and less prone to “foamy flutter”. No flutter was experienced.

My buddy has a Radian XL with an Apprentice Self Level receiver in her. I hope to put the Conscendo AR636 in her to see the differences.
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Posted by PeterVRC | Yesterday @ 11:24 PM | 418 Views
I have decided to start dabbling... Learning.... about springs and how to make them.
This is for OLEOS, so that you can alter them and tune them to suit any particular aircraft and its AUW.
Most of my aircraft have INCORRECT spring/suspension strengths and qualities, seeing you only get to use what any given Oleo comes with - and they rarely come with a strength/behaviour that is truly suited. This is because a strength required has to match the aircraft AUW - which varies per any owners own 'version', and of course across the multitude of aircraft types adn constructions etc.

On my Mig-29 I discovered the oleos I used were somewhere from JUST strong enough, to "too soft". They are just strong enough to hold its AUW if it is standing statically with no external influences on it, but as soon as it MOVES they will be driven to bottom out. You would think that this can't be a good situation to have.... but in reality it IS quite good. maybe not perfect, but still a very good end result.
This is because it is actually JUST short of able to hold the AUW, and even though they fully compress they are still operating as springs - any time the aircraft tries to LIFT UPWARDS they resume operation. And that occurs as it 'bumps' its way across grass, bumps etc. So they ARE doing useful things.

This outcome showed me that oleos that 'easily' hold up an aircraft are not going to achieve this aspect of useful operation. They will pass too much 'shock' to the airframe and then...Continue Reading
Posted by GBLynden | Yesterday @ 09:32 PM | 428 Views
This is the Maiden Flight video for the Brand New Durafly Supermarine Seafire MkIIB 1100mm WWII RC Warbird From HobbyKing.

HobbyKing Durafly Supermarine Seafire MkIIB 1100mm WWII RC Warbird Maiden Flight (4 min 54 sec)

That landing was all my fault, the plane is well built and flies great!

To learn more, click here! https://goo.gl/qCSkKu
Posted by Miami Mike | Yesterday @ 08:38 PM | 526 Views
When the OpenTX Wizard creates an elevon mix, it looks like this:
Code:
Inputs

I2:Ail Ail Weight(+100%)
I3:Ele Ele Weight(+100%)

Mixers

CH2 I2:Ail Weight(-50%)
 += I3:Ele Weight(+50%)
CH3 I2:Ail Weight(+50%)
 += I3:Ele Weight(+50%)
The weights are set at 50% so that the combined effect of the mixes for each channel won't exceed ±100% and cause clipping. That's important because when a channel mix reaches ±100% its control surface is at its limit and any further stick movement away from center won't result in any additional control response from that channel. For a more detailed explanation of this, please see this post, which includes a graphical illustration.

However, a 50% weight for the aileron input and a 50% weight for the elevator input isn't necessarily the best combination for a slope wing. The sum of the two weights should never reach beyond ±100%, but that doesn't mean they have to be equal to each other. In the case of my Weasel Trek and generally most other slope wings, the best setup will have a lot more aileron throw than elevator throw. In fact, if the CG is forward of but very close to the neutral point, a wing will require very little elevator throw. On the other hand, slope wings are generally more fun to fly with the quick and snappy rolls you can get with extreme aileron throw.

So here's an alternate OpenTX elevon setup that allows you to adjust elevator throw in flight and get it just right for smooth, stable pitch control, and...Continue Reading
Posted by Blaze0021 | Yesterday @ 07:46 PM | 477 Views
Happy National Aviation Day! This is a windy day footage of my new H-King SkySword 70mm EDF Jet. Enjoy the flight!

H-King SkySword 70mm EDF Jet (PNF) - National Aviation Day Flight (4 min 24 sec)

MODIFICATIONS:

1) Custom Elevated Basswood Tray for the Lemon RX 7-Channel Diversity Stabilizer / Receiver

TRANSMITTER, RECEIVER, & SETUP:

Transmitter: Spektrum DX8 G2
Receiver: Lemon RX DSMX 7-Channel Diversity Stabilizer / Receiver
Rates Used: 100% Aileron / 20% Expo, 100% Elevator / 25% Expo, 100% Rudder / 5% Expo
Flap Settings: Pos 0: 100% Flap / 0% Elev, Pos 1: 55% Flap / -4% Elev, Pos 2: 12% Flap / -12% Elev
Center of Gravity: 145mm back from the leading edge of the main wing
Battery: Admiral 4S 3000mAh 35C Lipo
Throttle Timer: 3:40 Minutes
Total Flight Time: 3 Minute(s), 33 Second(s)
Lipo Final Voltage: 15.17 Volts out of 16.80 Volts (~3.79 Volts / Cell) at 30%

ADDITIONAL INFO:

Camera: iPhone 7 at 1080P / 60 FPS
Cameraman: Mike “Deuces Wild” Frontiero

Thanks for watching!