Posted by Ssayer | Jan 16, 2019 @ 11:11 AM | 34,999 Views
Through trial and error using rubber bands, I found that I can use the larger (450mAh and 550mAh batteries) in this quad without issue so long as I wasn't doing a lot of flips and rolls. I get double the flight time and can still fly aggressively through my gates and chicanes, which is my preferred flying style. So, it was time to look for a battery bay that would do what I wanted. I searched Thingiverse and found a number of designs that met some of my criteria, but none that did everything I want (the joy of 3D Printing is that you really CAN have it YOUR way!). So, here is what I came up with that works for me...

The 3D Printed Battery Bay
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How it looks attached to the quad
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The batteries that I designed it for
...Continue Reading
Posted by GroundControlRC | Jan 16, 2019 @ 09:33 AM | 3,006 Views
Review Part 2 - RacerStar BR2208 1400kv Motor Thrust Test with 9x5 Prop



Here is a link to the Video:
https://www.youtube.com/watch?v=OGnyTx8I3fM

This is a very inexpensive motor and I purchased it for $4.99 US
The Manufacturer's Stated Thrust Data is higher than what my Motor was able to provide with an 8x4 Prop which is what they used in their Thrust Test with a 3S LIPO.
I had a comment on my initial Review & Thrust Test of this Motor and was told that the Motor performed better with a 9x5 Prop.
I purchased a couple of 9x5 Props to conduct this Thrust Test again.
Let's see how it performs with this Prop and then I will state my conclusions.

Here is a link to this Motor:

Racerstar BR2208 1400KV 2-4S Brushless Motor
https://www.banggood.com/Racerstar-B...47791920140372

Here is a link to these Props:

JXF Poly Composite Propeller 9x5 (2pcs)
https://hobbyking.com/en_us/jxf-poly..._asc=857965178


Manufacturers Test Data:

LIPO Prop Amps Thrust Power Efficiency
--------------------------------------------------------------------
3S 8040 11.5 630 128 4.9 g/W


Here is My Original Thrust Data using an 8x4 Prop:

Motor: RacerStar BR2208 1400kv
ESC : HTIRC 20A 2S-4S w/5V2A BEC
LIPO : DualSky ECO S 3S 800mah 25C

Prop : Gemfan ABS 8040 (8x4) Prop
Thrust: 590.3 grams
Amps : 9.1
g/W : 5.1

Here is My New Thrust Data using a 9x5 Prop:

Motor: RacerStar BR2208 1400kv
ESC :...Continue Reading
Posted by Pierre_de Loop | Jan 16, 2019 @ 09:19 AM | 2,639 Views
The Balsa USA website says the Taube should weigh in at 5 Lbs. and I confess being skeptical, but so far I'm at 3.3 Lbs. That weight includes the engine, landing gear, wheels, radio and airborne battery plus all the built up parts. The only stuff missing is push rods, control horns, sheeting on the bottom of the fuselage and the "cowling" plus the covering. The plans call for 1/8" sheeting but I'll use 1/16" along the bottom and 3/32" up by the engine.
Posted by BEAMRC | Jan 16, 2019 @ 01:26 AM | 2,447 Views
New BEAM Helicopter which will be going to release very soon.....
This is the picture of the 550 Class BEAM Helicopter,
The AQUILA Helicopter. (Tail Part only)
Posted by Slyser | Jan 16, 2019 @ 01:21 AM | 2,106 Views
So I put a brand new span f4 Tower in my latest build everything was working fine and the night after BF flashing and configuration I plugged in a battery to test my switches and next time around the Lipo wouldnt power it. I Plugged usb in and suddenly it turned on but only with usb. I looked for a solution for probably a week and a half I even ordered a new Tower. Finally after emailing GEPRC they sent me detailed instructions on what to do. So if this happens to you heres the fix. Basically shorting out where the faulty component was by soldering the two pads.
Posted by rclad | Jan 16, 2019 @ 01:16 AM | 2,130 Views
To determine the minimum thrust I need (or would be happy with) for my 104" Extra 300 V2, I needed an accurate measurement of the thrust I have been getting out of my 95" Extra. The electric set up in that plane has been very good for most conditions in which I practiced and competed in 2018, flying scale aerobatics. While the thrust could have been improved with a different prop or bigger motor, that setup struck a good balance between weight, thrust and flying time. After more than 150 cycles on the batteries, I can still get a ten minute flight performing two Intermediate IMAC sequences (#IamIMAC), with time left over for extra maneuvers.

Once I knew what thrust I was currently getting and happy with, I could calculate a thrust to weight ratio, then work backwards from an expected all up weight on the 104" to calculate the minimum thrust I would need from an electric power system. Adding 2 lbs for the additional parasitic drag of the bulkier airframe should get me close to the same vertical performance I had with the 95".

After borrowing some climber's tubular webbing from a co-worker I finally had what I needed to stake the 95" Extra to the ground and run her up to full throttle. Unfortunately, the weather turned cold and more than half a foot of snow landed by Sunday morning, so I moved the test indoors. Here are the results:

95" Extra 330SC-E
Motrolfly DM5335 189Kv
Jeti Mezon 135 Opto ESC
Falcon 24x10 CFE
2x Glacier 6s 8000mAh (...Continue Reading
Posted by old4570 | Jan 15, 2019 @ 10:27 PM | 2,394 Views
I havent put in any RC gear ..
But I thought I might Chuck it some more ...
It does seem to like / favour a forward CG , perhaps it's that Canard ? Lifting the nose ?

Prime Jet pro Back Yard Chuck's (4 min 22 sec)



Next I will start installing the RC goodies , I will start with the 9g servos , then solder up a 4ch FS2A Rx and then install the ESC and EDF .

Hmmmm , I might Park it before I try to apply power ( The little hill = test glide )
Posted by PeterVRC | Jan 15, 2019 @ 07:14 PM | 3,483 Views
Not exactly RC aircraft modeling, but if you LIKE aircraft then you might very well like Flight Simulators also. If you like Flight Simulators then you will LOVE VR !!!! "Incredible" is a good description of it.....

There are not really many VR Headset choices. The main two are the Oculus Rift and the HTC Vive in plain or Pro versions. The Rift and plain Vive are the same specs pretty well, and the Vive pro is higher resolution but COSTS a fortune then!
So for various other reasons in the equations, the Oculus Rift is a clear winner in my totals of all aspects.

It cost AUD$529 for the "Occulus Rift with Touch" set at Amazon.com.au, which is pretty well $100 or more lower than anyone else sells them! And it was with free shipping. You WANT that 'Touch set', not just an Occulus Rift on its own! The extras it gives cost a FORTUNE to buy later, and you actually need EVERY item they have in that set!

Now you might think "That is quite an expensive thing", and in some ways it is, but you are getting stuff made like 'Mercedes" or "Apple" quality! This stuff is made 10/10 in no compromise, cover all needs to the Nth degree and in QUALITY.... and even the packaging and box are premium in every way you could do so! (Which Apple do, and this might exceed typical Apple packaging 'luxury' too!)
Also, consider the cost of a good monitor for a PC and then this whole Oculus Rift cost is very reasonable and I think worth every cent!
More so...Continue Reading
Posted by Ssayer | Jan 15, 2019 @ 06:48 PM | 34,719 Views
The M7 is made to work 1S or 2S, but I can't see me running it 1S, since all I have to do on 2S inside is to limit throttle a little in my xmtr and I still get the power of 2S. With that in mind, I drew up a battery bay that would hold both large (450mAh and 550mAh) batteries along with the 260mAh stock batteries, including 300mAh batteries. Here's what I came up with for my 2S setups:

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This 3D Printed bay is attached by clipping off the bottom of the current battery bay, leaving 1mm worth of a tab on each of the four arms and simply clipping it in (I use a tiny drop of hot melt glue on each tab just because. Also, it's easy to scrape off the hot melt glue if I want to detach the bay. ). The bay allows easy access to the USB plug.

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Here's what it looks like from the bottom with the large batteries

...Continue Reading
Posted by bnrusso | Jan 15, 2019 @ 04:20 PM | 3,398 Views
My goal is to update the firmware, and add a multi protocol module.
BACKGROUND:I recently purchased this working TX from an auction. I already owned 2 older 9X, 1 Turnigy and 1 frsky. I decided to try to do a firmware upgrade and after lots of research and you-tube videos (mostly quite old ones) I decided to document these adventures for 2019.
#1 what firmware to use:
This TX came with it's original Turnigy 9x software.
I very much like OPEN-tx (thanks to you-tube edu-macation by R Scott Page) which I have in 2 current radios. A Jumper T12 using a modified version called Jumper TX and a new for Christmas Taranis QX7s. As I now understand https://www.rcgroups.com/forums/atta...d=11564993only an older version 2.0 Open-TX would work on this older radio. Another choice, an even older OS as OPEN-9X.
Since I've been reading about an alternative ER9X and the work of Mike Blandford I decided this will be my go-to first attempt.
Mike also has a version of ER9x that seems to support the T-12 too.

#2.Here are the details of how I went about getting this working.
I purchased a USBasp board from a local US ebay vendor for around $4.click here for my E-BAY link
I could have got it cheaper but CA to AZ was quick for a little more.
I also purchased a 10-pin to 6pin adapter for $.99 click here for E-bay link
When I attempted to use this USBasp on my windows 10 computer it did not install correctly.
Research pointed me to This Zadig website for the correct drivers.
Following the install...Continue Reading
Posted by scousethief | Jan 15, 2019 @ 11:47 AM | 14,381 Views


Most already know that i do enjoy "tools" that Work ! and by work i mean screwdriver inserts that dont break off or bend when you try to dig out that last stubborn screw or the screwdriver itself doesnt fall apart when you use it on anything other than foam. There are a multitude of different options available from pound/dollar shop sets that are a gamble on quality ( ive had some good sets and bad ) to mid-priced general sets and all the way up to expensive high quality sets that look very nice but are out of my price range ( doesnt stop me looking ).

My go-to set has been the Daniu 25in1 set in the 3rd post below and it suits me perfectly fine ( because its CHEAP, $4.44 atm ) the Daniu set is contained in a simple imitation leather wallet and the supplied bits are enough to take care of the majority of jobs you would use a mini screwdriver for. More importantly the bits are reliable and quite sturdy and havent bent or chipped even with my usual heavy handed abuse. The Daniu bits are held in the wallet in an angled slot which helps prevent the bits from falling out or coming loose in your pocket. I have had the Daniu set for quite a while now and its still in excellent condition with all bits in tact and i honestly have ZERO complaints about this set so i will use it as a benchmark to gauge the quality and reliability of all future sets.

The Christmas period left me a few 's in my wallet and having plenty of toys to play with i decided to buy a couple of...Continue Reading
Posted by basslord1124 | Jan 15, 2019 @ 09:08 AM | 3,144 Views
In my latest video I look back at 2018 and then look forward to 2019 with a different outlook. An outlook that is nothing new, but more of the traditional RC plane hobbyists view on how things go in our crazy world. Hoping for an awesome 2019 experience as well as many more years to come. And hope everyone out there has a great new year as well.

Looking back at 2018 and looking forward to 2019 (7 min 45 sec)

Posted by nickden | Jan 15, 2019 @ 09:03 AM | 2,139 Views
GET THE NEW XIAOMI FIMI X8 SE NOW LOWER PRICE ONLY 449,99$US
COUPON CODE
GBFIMIX8SE

https://www.gearbest.com/rc-quadcopt...&lkid=19312951 coupon code: GBFIMIX8SE
price after coupon:$449.99
Posted by nickden | Jan 15, 2019 @ 08:57 AM | 1,829 Views
NOW LOWER PRICE FOR THE DJI MAVIC 2 ZOOM
COUPON CODE RC-20%OFF

DJI Mavic 2 Zoom RC Drone [HK]
💰 Price: 999.20 USD (871.41 EUR)
💵 Discount code is: RC-20%OFF
https://www.gearbest.com/rc-quadcopt...&lkid=19312951
Posted by jj604 | Jan 15, 2019 @ 06:40 AM | 14,246 Views
I will put links in this entry to some other threads that I have started and which contain some useful data. It's hard to find stuff on RCGroups as it gets older and buried!
This is a work in progress and will get updated from time to time.

The LiPo tool for calculating a safe continuous C rating from Internal Resistance of a LiPo
http://jj604.com/LiPoTool/
The background threads for the LiPoTool
A simple way to estimate the true C rating of a LiPo battery
https://www.rcgroups.com/forums/show...a-LiPo-battery
A simple LiPo performance tool
https://www.rcgroups.com/forums/show...rformance-tool

Adapting computer SERVER power supplies as battery charger supplies.
How to convert Server Power Supplies. The main reference thread that links only to solutions.
Any other kind of post is ruthlessly deleted in order to keep this thread useful and concise.
https://www.rcgroups.com/forums/show...Power-Supplies
A simple high quality 12Volt 100Amp Power Supply- Part1. Despite the weird title, this is the main discussion hangout for people interested in getting these powerful server supplies to run.
https://www.rcgroups.com/forums/show...r-Supply-Part1
Using two power supplies for higher voltage/capacity chargers: safety issues
https://www.rcgroups.com/forums/show...-safety-issues

Lemon Instructions and support threads
Nigel (Daedalus66) and I write various instruction documents for the Lemon receiver products and also I start the "Official" Lemon...Continue Reading
Posted by japim | Jan 15, 2019 @ 04:03 AM | 2,172 Views
During the Christmas break my son (17yrs) designed on his own a frame that combines all the best technical solutions from all the frames he has been flying over past 2 years.

Basic data: size: 5 - 5.2"
Frame weight (as pictured, w/o pack): 255g
FC/ESC - Kiss CC
Motors: Wildfire 2205 2666kV by DemonRC.eu
Cam: Caddx Turbo EOS2
VTX: TBS Unify Pro Nano
Antenna: Gem 5.8GHz by Actuna
RX: TBS Crossfire Nano with XF Race antenna
Props: 5x4.5 HQprop
3D prints: hobbyking flexible TPU filament.
Posted by Larron | Jan 14, 2019 @ 10:44 PM | 1,990 Views
Posted by BEAMRC | Jan 14, 2019 @ 07:34 PM | 2,279 Views
Key Features

● CNC full metal precision rotor head w/8mm spindle.
● 11 tooth 6mm shaft size pinion, mod 0.8 (straight cut).
● 100 tooth main gear, mod 0.8 (straight cut).
● 4.0: 1 Tail Gear Ratio
● Designed for power system up to 6S or 12S Li-Po
● Carbon fiber frames for ultra-rigid and compact design
● Easily serviceable engine maintenance
● Triple bearing supported 10mm hardened main shaft
● 120-degree dual race ball bearing metal swashplate
● High-quality DuPont plastic injection mold w/strengthening fibers
● Stainless steel damper mounted bearing torque tube for high efficiency
● Top to bottom supported tail pitch plate for improved accuracy
● Dual race ball bearing with thrust bearing supported tail blade grips
● Front mounted rudder servo with push/pull bell crank
● Carbon tail boom supports
● Sleek Pre-painted fiberglass canopy
● The new lightweight landing gear

Overview
So many admirable qualities “implanted” in this machine:

Unique control system allowing free adjustment of this 3D champion.

Electric powered helicopter for 6S-12S LIPO.

Innovative design allows reducing weight, which leads to ultimate power output.

Take your advantage with your Avantgarde!

www.beamrc.com
Prepared by: Suzanne Moon
BEAM Staff
Posted by FIXXIN2FLY | Jan 14, 2019 @ 07:28 PM | 3,285 Views
Flying at Jerrys Hangar