Posted by Okmalek | Today @ 02:54 AM | 94 Views
I am working on designing a 2m polyhedral wingspan glider. I found out that many people says that the V tail angle should be around 110-120 and I choose my glider V tail angle to be 114. After all of that, I found out Mark Drela formula to convert from traditional tail to V tail, and I got that my V tail angle should be 87.7. I would like to have your recommendation for which angle I should use. I had attached the final calculations used for the traditional tail.
Posted by old4570 | Today @ 01:47 AM | 130 Views
So , I got around to connecting the servos to the control surfaces ..
After shrinking the heat shrink tube I got a little liberal with the cyno ...

Anyhow , looks like I am good to go !
Only one thing remains to do and that is glue in the launch peg ..
Oh , and I should check the weight !

I just checked

Oh dear ! ok , it's not under 90 grams ( no no no )

93 grams wet ( flying weight with launch peg )
I guess - Now I have to go and glide it !
Posted by YaLi | Today @ 01:32 AM | 126 Views
Good News Coming !!!

We have graphene battery in USA now.

HRB 7.4V 5000mah 100C XT90
HRB 11.1V 5000mah 100C TRX
HRB 11.1V 5000mah 100C XT90
HRB 14.8V 5000mah 100C XT90
HRB 14.8V 5000mah 100C TRX
HRB 18.5V 5000mah 100C XT90
HRB 22.2V 5000mah 100C XT90
HRB 22.2V 5000mah 100C EC5

HRB 14.8V 6000mah 100C XT90
HRB 14.8V 6000mah 100C TRX
HRB 22.2V 6000mah 100C XT90
HRB 22.2V 6000mah 100C EC5

Send from our Chicago warehouse.😊
If you need wholesale price, you need order about 50kg total weight.

If you are interested, you can contact HRB team
Alibaba store:
Posted by JureZ | Today @ 01:12 AM | 132 Views
what I do (borrowed from the 'net)
Posted by PittSpecial | Yesterday @ 09:47 PM | 204 Views
Good evening gals & guys!

I do realize that everyone has their favorite RC Transmitter Radio that has pulled them through in this hobby. I have had many Transmitters and the best has been JR XP-7202 and the First GEN DX7 in the JR Case.

I have always wanted to try out the First GEN DX7-SE (Special Edition) which comes with an enhanced RF board that operates at the faster sampling speeds such as 11ms (11 Milli-Second) sample rate.

I had a few disappointments at certain classified boards and finally over at eBay I found someone selling one and I was able to win the bidding session all the way to the last second. There was at least three other people that was head-to-head in trying to get this GEM of a transmitter but, my experience in bidding was no match for these less experienced.

Therefore, I am the proud owner of one First GEN DX7-SE and I just tested it and all systems work as they should. Can't wait to fly my experimental model, Parkzone T-28 Trojan (1.1m wing span).
Posted by aben71 | Yesterday @ 09:15 PM | 219 Views
I think I might do some more of this whenever I get something new to check out

Eachine TX06 Review Preview (4 min 16 sec)

Posted by basslord1124 | Yesterday @ 04:57 PM | 340 Views
Our RC club (Skyhawks-Tri State Model Flyers) holds a mall show each year to show people what we do and attract some new members. Here's footage from this year's mall show on Feb 16-17.

Skyhawks RC Club Mall Show 2019 - Ashland Mall - February 16-17, 2019 (1 min 59 sec)

Tri State Model Flyers website:

Facebook Page:
Posted by starcad | Yesterday @ 04:14 PM | 354 Views
Accelerometer Calibration

Now that we have progressed through the first four pages, its time to look at the last Tab, the Accelerometer Calibration Page (Picture 1). Before starting, assemble a few tools to make it easier to calibrate the receiver. Secure a servo extension; I use a 24 extension making it easier to position the receiver as my computer is under my desk. I do the same with my Surface laptop. Also needed is a small block of wood by about . When calibrating use the block of wood to level the antenna side and the servo side of the receiver.

Pick up the receiver and slowly rotate it to ensure the computer is reading the Accelerometer. The numbers in the X, Y, Z and Mod blocks should change. If not the receiver is not connected properly or the wrong Com Port may be selected.

Before going through the Calibrations of the receiver I would suggest viewing this YouTube Video as a review of what I have presented in my previous blog entries. Pay particular attention to the last part starting at 22:10. FrSky S6R - Receiver with stabilization

After reviewing its time to do a Calibration. Take your time as several steps may take longer than others. When the receiver is in the inverted position the yellow light will not be visible. When selecting the Calibration Button on this step, press Calibration and then slowly count to 10. By that time the yellow light should be out and you can proceed to the next orientation to complete the...Continue Reading
Posted by GabeWind | Yesterday @ 03:37 PM | 386 Views
Ever since last summer I boght my FeiLun FT007 brand new, is was longing for a bigger and faster boat, and becouse iam new in RC hobby, i was eagerly waited for my first brushless setup... so i was dreaming that one day i will buy the FT012.

You might be asking why not FT011? Well two reasons, need to step up somewhere
And also on that scale, i have other plans... but that is another tale, we will see

So back to the topic: one day I was browsing Facebook, when i saw it: a used FT012 fairly cheap, according the seller, only 1-2 times in the water. Perfect.
Of course i couldnt let it go, so contaced and bought it. I was waiting it was reeaaaly long waiting.... well actually only a few days, but when you are waiting for something...
But on January 15, it came home at last, it was here, and it was mine.

Maan it was so much bigger and heavier than FT007.
The first thing came to my mind: This is a BEAST. (Vadllat in my native language).
So i named it: VADLLAT.

Infact just a few day ago i got from my friend a label printer (Thanks for it, love ya man ), so the first mod was printing the name for it!

And then came a long waiting since its winter, the lake was frozen, so other than the bathtub no place to ride

Of couse i needed to do something, so a few mod's came:
(This is the right time to thank everyone in the forums! You are a really big help - Thank You Guys!)

I read about the water leaking problem, so my first thing was on that evening I...Continue Reading
Posted by yqrninja | Yesterday @ 03:18 PM | 389 Views
We are in the middle of winter here on the Canadian prairies, coldest February in 130 years, and no real break in site. The Arthobby Odyssey ECL project has been stalled since the fall when I tackled a couple big house hold projects. I am glad that those projects are done, any very happy to stop making daily visits to Home Depot. I need to have this bird ready for warmer weather.
Next step was to cut the control surfaces. I read the instructions and reviewed the process by watching Sorens video, and it was helpful.
Arthobby wing, aileron/flaps cut (5 min 34 sec)
. In the end its not difficult, however compared to what I am used to building it is very different. While we are on the subject, I was confused by the drawing and instructions compared to what I saw on other peoples Odyssey pictures. Pictures of others Odyssey showed no gap between flap and aileron. I was confused because the drawings are different. So.I posted a question on RCGroups (#4200 ) regarding control surfaces. In the end, I just followed the drawing.

Next is cutting out the servo bays and building the servo boxes, again I was careful not to get carried away with epoxy, reminding myself of the goal of keeping this thing as light as possible. I nearly skipped the step when epoxying a servo bay sized piece of fiberglass in the servo bay. But I did it anyway, using the paper towel method of soaking up excess epoxy, resulting in just a...Continue Reading
Posted by nickden | Yesterday @ 06:54 AM | 588 Views


Posted by Cessnalile | Yesterday @ 06:00 AM | 663 Views
I really want to find a day that I can post some pictures and get my story written. I think the blogs section of these profiles was an awesome idea, and a great place to get to know others in this hobby.
Posted by japim | Yesterday @ 05:07 AM | 658 Views
Here is another iteration (rev 8 actually) of the scale look a like of propeller for P-61 Black Widow.

This time fixed prop.
Bolted hub with 4 x M2 screws.
To maintain the best print orientation for strength the blades are printed on the back edge. But a clever support was needed to account for blade curvature.

This time parts are printed in ABS so I can achieve better surface quality after sanding.
I achieved 305g of thrust @ 94W that makes 3.24g/W.

Basically it is the best result among all tested propellers so far on this motor (Cobra 2208- 2000kV @ 2S) - including commercially available propellers.
I have not compared it to GWS props yet.

You can also see what is the difference between sanded and non sanded version: almost 25% in case of rev. 7
Posted by cuavlindy | Yesterday @ 04:22 AM | 680 Views
how many people know Chinese hongbao , or gongxifacai
Posted by cuavlindy | Yesterday @ 04:10 AM | 680 Views
hi dear friend

Happy Valentine's Day

CUAV start to work from CNY holiday

welcome and feel free to contact us

hope you have a nice day !

Best Wishes !

lindy liang
Guangzhou CUAV Technology Co,.LTD
Address: N203B , 3 North Gate,Technology Park software building , City Ring Road South 2 ,Nansha District , Guangzhou City,Guangdong. China
Tel: 13570272379
Posted by old4570 | Yesterday @ 01:52 AM | 699 Views
Some servos were in the letter box today ..

So it was time to move a little further forward with the elf .
I used double sided tape to work out where I could place the servos .
Then I had to try and squeeze in the 4ch FS2A Rx from banggood .

I soldered the servo pins to the Rx and then bound it to my Q x7 .
Then I had to solder up a battery extension ...

CG looks ok .. with the lay out pictured ...
Rx is bound , servos are working , and everything looks to fit under the hood ! ( Canopy in place )

I have not done the control rods as yet ( servo connections ) , I think I have done enough for today ..
On the morrow I should hopefully have the Elf up and running ..
Sharp eyes may pick up the change from metal wing screws to nylon ( Since I had them )

Moving forward !