Posted by GEMFAN ts | May 19, 2021 @ 03:31 AM | 38,684 Views
Rotor Riot Rampage LED props! Did you get your hands on one?

Remember to send them pics to us so we can share them! Only 300 sets in the world!
Posted by solentlife | May 19, 2021 @ 02:16 AM | 40,300 Views
I have 3 hobbies ..... RC of course, then full size Yachting, and finally fishing.

2020 of course was a disaster for all 3 as CV19 swept across the Globe causing lockdowns and restrictions for all. As time went on - easing Lockdowns and CV19 hit back ... so even tighter lockdowns ...

Here we are in 2021 with Vaccinations in progress - but still CV19 has a grip on us.

Is there a light at end of tunnel ? Yes a small flicker is appearing - but it all hinges on us all getting our vaccinations and doing best to reduce spread of the CV19.
It will be a long while before open full flight line meetings and TBH - I think CV19 is never going to fully go away. It will sit there waiting its chance to strike out ..

Here in Latvia - the pandemic is serious - hospitals full and staff struggling to cope. But movement is still relatively free. We have restrictions on numbers in gatherings ... masks ... controlled access into shops etc.

Maybe I am not alone - but the urge to go out and fly is there - but the actual will to get up and go is ?? after all this time locked down. I'm sure that once I get a model back in the air - the drive will be back again ... its just that initial get up and do it !

Lockdown has created a hangar full of new models to maiden .. but flight fields have been lost. The CAA has issued more Red Zones making the distance to travel to fly greater. Owners / those responsible for land suitable are increasingly reluctant to agree use.

I wonder what the future is ?
Posted by Calypso6858 | May 18, 2021 @ 11:09 PM | 31,093 Views
Doyle O-2 Oriole:

After the Doyle Brothers parted ways with Vulcan, each side started their own new airplane company. Check previous post about the Davis D-1. While Davis was getting the V-3 started, the Doyle brothers started the O-2 Oriole.

The Oriole was aimed at exactly the same market as the Vulcan and Davis. It was a small two seat parasol with a radial engine and a tail dragger configuration. Unlike the Davis however, it shared no particular design parts with the Vulcan, it was an all new design. It had an all new welded steel tube fuselage with sleek curved aluminum for the turtle deck and belly. The wings were of all wood construction and covered with fabric like the rest of the airplane.

The Oriole had a small production run of only 7 airplanes. Most were powered by 65hp LeBlond radials however one was powered by a Chevrolair 120hp inline four. The first two production airplanes, serial numbers 2 and 3, were both destroyed in crashes on the way to Detroit for an airshow. Number 5 was rushed to the airshow conveniently on the road. Number 5 is also the single survivor of the example.

Restored in 1987, serial number 5 belonged to the Schrack family in Pennsylvania for a long time but now resides at the Eagle’s Mere Air Museum....Continue Reading
Posted by Calypso6858 | May 18, 2021 @ 10:47 PM | 29,416 Views
Davis D-1: I said I would get back to this airplane and it’s brother the Oriole, so here goes.

In 1929, after the Doyle brothers left the Vulcan Aircraft Company, Vulcan was bought by Walter C. Davis of the Davis Automobile Company. Davis and Vulcan merged into the Davis Aircraft Corporation. Davis continued modernising the Vulcan American Moth. The Davis V-3 was the earlier version of the Davis and shared the tail feather shape of the American Moth, which apart from engine was the only distinction from the D-1.

The V-3 and D-1 had a lengthened and rounded fuselage along with a new landing gear design. Initially the design was powered by a 60hp LeBlond radial, but later versions were powered by 85hp LeBlonds, 90hp Lamberts, 100hp Kinners and 125hp Warners.

The Davis was a healthy performer with the larger radials and later models were even certified for aerobatics. With the tapered wings, long ailerons and authoritative tail surfaces, the pilots who have had the luck to fly the Davis say it is a fantastic thing to fly. The Davis was frequently fitted with elegant gear leg fairings, wheel pants and speed ring or NACA cowlings. That paired with the elegant wing and proportional design, the Davis is also quite a handsome design. I have a particular liking for parasol designs and the Davis seems to me to boast the best flying characteristics and best looks not to mention there aren’t many two seat parasols.

Davis pushed 61 V-3s and D-1s out of the factory and one...Continue Reading
Posted by Calypso6858 | May 18, 2021 @ 10:33 PM | 28,851 Views
Younkin-Dake Mullicoupe: Today we’re going to take a jaunt into an era I don’t normally dabble in. The Mullicoupe may look old but it’s anything but.

The Mullicoupe is the brainchild of Jim Younkin and Bud Dake. Dake and Younkin were each experienced in high performance, high winged, radial taildraggers. Dake owned a Monocoupe 110 Clip-Wing and Younkin owned a replica Howard DGA-6 Mr. Mulligan and restored another Monocoupe 110 Clip-Wing. Apparently in conversation, Dake and Younkin came up with the idea of combining the Monocoupes and the Mr. Mulligan into a middle sized airplane.

Younkin, who was an exceptional craftsman, got to work like nobody’s business. The first rendition of the resulting airplane, the Younkin-Dake Mullicoupe, was taking shape by 1989. Younkin and Dake each built themselves a Mullicoupe and a third was completed for Red Lerille. All three were in the air by 1997. A fourth was started but has yet to be completed, and with Younkin and Dake both being deceased, the progress seems to have slowed or even stopped at this point.

Red Lerille’s airplane remains in his hands. Dake’s airplane now belongs to Mark Holliday and remains airworthy. The first one, Younkin’s airplane, which was rebuilt by Younkin after a fuel starvation accident, now belongs to another private owner in Northern California and flies on an almost daily basis.

The Mullicoupes boast incredibly good performance. They are powered by a 450hp Pratt & Whitney R-985 for a two seat ship with only 29’ of wingspan. With a cruise speed of 210mph they clip right along. Younkin was also an exceptionally sharp builder and laid the airplane out ingeniously to make an exceptional pilot’s airplane.

https://youtu.be/BCgL5rEExiA
Posted by filago | May 18, 2021 @ 07:10 PM | 31,278 Views
Here's a way to estimate the in-flight battery use when you don't have on-board sensors to measure it for you. This works great for me in OpenTx; I'm not familiar enough with other Tx systems to know how well it applies.

The idea is to create a channel that has output proportional to full-throttle amps, and use that channel as input for a Throttle % timer. That timer will run proportional to mAh consumed.

Steps:
  • Set up to safely measure the current draw (amps) with the plane on the ground.
  • Determine amps from typical servo motion; by subtracting amps with servos not moving, from amps with servos moving.
  • Measure amps vs throttle position across the full range. BE SAFE DOING THIS.
  • Add the typical servo motion amps to measured values.
  • Re-scale the amps data to a range of -100 to 100, and use it to make a curve.
  • Create a new channel that applies this curve to the Throttle channel output.
  • Use the new channel as input for the Thr% timer. It will count time proportional to amps, and the elapsed time will be proportional to mAh used.
The initial time to set for this timer can be estimated by calculating how many seconds at the full-throttle current it would take to drain the number of mAh you are shooting for. Then start with something less (maybe 3/4 of it) to be conservative, and use test flights to dial it in.


I find this extremely useful for flying 3D foamies, where I have a dozen batteries that I parallel charge, which is best done when the batteries start at the same voltage . In my planes a battery can typically last from 3-1/2 to 7 minutes depending on how hard I fly, and using the Thr% timer with the amps curve assures that they all discharge to the same level with any flight style.

Cheers,
- John


Note: This method is probably used by others, but I haven't come across it spelled out completely. Some ideas for it were sparked years ago from the threads for Twisted Hobbys planes.
Posted by davymac | May 18, 2021 @ 03:08 PM | 30,599 Views
So I got a chance to do a quick test on my PineCil soldering Iron today

I decided to run it off of a 12V QC USB charger to see how well it would work. One thing I did notice was that it took a minute or so to negotiate the proper power from the charger before it would provide the full 12 (11.5 really) volts. Once it had done that though it was ready to go. I tinned the tip using some Loctite tip tinner before soldering and I set the iron to 350C as a starting temperature as I was using leaded solder. It's a bit on the high side but I wasn't sure of the temperature profile on the Iron so I decided to play safe at the top end of the temperature range.

I soldered up the pins on a LoRa 32 board as a test and it worked very well, especially considering the pads were tiny. I did have to break out the magnifying headset though, my eyes are getting old .

I am very happy with the Iron though, it worked very well and even though it wasn't a very heavy test of the unit, it still performed very well. I'll have to get a few more tips for it though. Not a huge fan of the conical type tips for soldering.
Posted by Amir3 | May 18, 2021 @ 11:29 AM | 30,281 Views
Finally the covering and some details to get a nice look. The decals are printed and applied as watertransfers.
The rigging and the build of the control wiring was also kind of tricky, but I hope it works the way I built it. Any way, I am ready for the maiden flight.
Wish me luck!...Continue Reading
Posted by Amir3 | May 18, 2021 @ 11:10 AM | 30,509 Views
After glueing all the ribs and wingroot I started the build with the wings. Upper and lower wing have some slight differences in construction, but basically the same. The lower wing is a bit shorter as it will be fixed to the fuselage. The upper wing will be fixed to a roof construction, wood and brasstubes.
Next step was the stabilizer. Very delicate and lightweight construction. I used some carbon rods instead of the bamboo skeewers provided with the kit.
The fuselage is also very lightweight, but astonishingly stable with this "crosswire" construction made of bamboo skeewers.
As the plane was intended to be motorized with a fuel engine, I had to reshape the front part for the electric drive. The engine is fake, made on my 3d printer.
Also the pilots were printed and then painted....Continue Reading
Posted by scousethief | May 18, 2021 @ 10:04 AM | 34,150 Views
https://www.banggood.com/custlink/mGDyolMnjq



Introduction:

In an effort to push boundaries Flywoo has designed one of the smallest 'off-the-shelf' hexacopters available - the Firefly Hex nano , a 90mm FPV drone designed to carry the Insta 360go . The Hex nano arrives pre-built and installed with a Caddx Ant 1200tvl and Nano 5v 450mW VTX , an extra connector has been soldered to the main board to supple power to your choice of HD camera. The Hex is powered by a GOKU HEX 13A STACK and 6x ROBO 1202.5 5500KV motors, the supplied props are 40mm HQprops , no battery was supplied


Brand: Flywoo

Item Name: Firefly hex nano ( without GPS Version)
Item Name: 90mm GOKU F4 13A ESC 4S 1.6 Inch Hexacopter
Wheelbase: 90mm
Camera Degree: 15°-90°
Weight: 57.9g (without battery)



...Continue Reading
Posted by Craycle Hobby | May 18, 2021 @ 09:08 AM | 28,117 Views
FPV ORCA test parts available on Cults3d for free. You can download now: https://bit.ly/model_library

You can take a test print before buying for see the print details.

Follow us for more information and to be informed new models on instagram: http://bit.ly/craycleinstagram
Posted by ShonanBeachRC | May 18, 2021 @ 08:16 AM | 24,418 Views
ZD-Racing Thunder ZMT-10 (10427-S, 9106S) New Version First Drive Impression! 3S Lipo (1 min 31 sec)


Short video about my drive impression of the ZD-Racing Thunder ZMT-10 (10427-S, 9106S) New Version! Its definitely faster than the old version of the ZD-Racing Thunder ZMT-10. even with the wheelie bar it easily flips over.

If you like to buy the OLD ZD-Racing Thunder ZMT-10 (10427 - S / 9106) :
https://www.banggood.com/custlink/vvDycOQQfN

Or buy the NEW version here:
https://www.banggood.com/custlink/vGGdaOELfz

Motor and ESC set.
https://s.click.aliexpress.com/e/_AkGOqU
ZD Racing 7201 Upgraded Metal Reduction Gear.
https://www.banggood.com/custlink/mv3hPfcdnZ
ZD Racing Metal Wheel Carrier Rear 7189.
https://www.banggood.com/custlink/v3Dyt1cENj
ZD Racing 10421-S 10427-S Rear Axle No.7190.
https://www.banggood.com/custlink/mKDhVwCtcz
ZD Racing 1:10 10427-S Transparent Car Shell 7382.
https://www.banggood.com/ZD-Racing-1...p-1192192.html

Please visit my website! https://www.shonanbeachrc.com/
Twitter: https://twitter.com/beach_rc
Minds: https://www.minds.com/shonanbeachrc/
Parler: https://parler.com/profile/ShonanBeachRC/posts

#rccars #banggood
Posted by zclgroup | May 18, 2021 @ 04:34 AM | 21,510 Views
Most people know that electric motors use electricity to produce motion, but few know how many different ways there are to accomplish this task. There seems to be no need to create new ways to accomplish the same task, but engineers have good reason to do so. Some motors are driven by DC current, some by AC, and some by a combination of the two, with specific energy transfer methods that are unique to each motor. As a result, there are many types of DC and AC Motors, each with its own advantages in certain applications.



synchronous motor

synchronous motor



What is a synchronous motor?
synchronous motors are considered to be a type of AC motor specifically designed to address the limitations of induction motors, another prolific class of AC motor. Induction motors, as their name implies, use electromagnetic induction to generate mechanical energy; however, their main drawback is the "slip" phenomenon that occurs. This "slip" is the difference between the AC frequency of oscillation and the frequency of rotation, and is a direct result of using induction effects to produce rotation. Although not particularly important for most applications, because of this slip, ordinary induction motors cannot be used for precisely timed applications and are therefore called "asynchronous" motors.



Synchronous motors, on the other hand, are made so that the output rotational frequency is exactly equal to the input AC frequency. They can be...Continue Reading
Posted by sequre | May 18, 2021 @ 03:29 AM | 22,576 Views
For users of electric soldering irons, performance is one aspect, and complete equipment and portability are the most important aspects. Today, I come to recommend a SQ-001 best welding tool bag with both performances.

This combination is the kit included in the box. You can choose the adapter plug suitable for different countries, which provides a stable 19V power supply for the soldering iron.

You can use the 19V 3.42A power adapter (EU/US) plug at home.

At the same time, if you need outdoor welding friends, you will also be satisfied. Because SQ-001 can be powered directly by lithium batteries. You can keep SQ-001 working normally as long as you carry the power bank. Allows you to flexibly apply various welding scenarios.


In fact, if you have purchased the SQ-001 Best Soldering Toolkit, the solder suction wire and solder paste are regarded as free gifts on the website. This will be the link in the description, and the order will be accompanied by these gifts.

There is a flux paste, which is not included in the regular packaging. It is an add-on product.

In addition, there are solder wires. It’s nice to see long-life solder wires. I can put them on all the bad joints I make, then I can remove them, touch and heat them, and then suck them into the solder. When I took it away, the welding was complete. It works very well and brings you easy work.

Tips:

Please use a grounding clamp, appropriate power supply and other accessories to ensure safe use.
...Continue Reading
Posted by Jack Crossfire | May 18, 2021 @ 01:43 AM | 23,868 Views
Some ideas for mounting a motor on a metal angle were conceived. The problem is the metal angle has to be as wide as the screw holes, the seal has to be a wider diameter than the metal & the tire has to be a wider diameter than the seal. It takes a very wide tire to enclose the encoder & large diameter for most of its width to enclose the seal. The encoder would have to go inside the motor & the metal angle would have to be little wider than the motor shaft. It would have to fan out inside the seal to attach to the motor screws. This doesn't allow any motor cooling.


So the existing motor modules with large diameter tires remaned. The C rings still tend to pop out if it hits the ground real hard, causing the wheels to slide out of their bearings.
Posted by jomamamoto1969 | May 17, 2021 @ 07:43 PM | 23,180 Views
I just recently purchased the new dragon link v3 slim complete kit and a extra v3 micro rx. I got everything up and running telemetry is all working. I am getting a humming from the taranis speaker, only when using the dragon link tx. If I switch to another model that uses the internal rf module the noise goes away. All antennas are tight. I did not get this on the same radio using the old dragon link v2 that does not have telemetry. Is there something I am missing here.
Mini-Review / Posted by QuadifyRC.com / May 17, 2021 @ 03:52 PM / 29,776 Views / 0 Comments / Reply
This entry is temporarily hidden while QuadifyRC.com edits it.
Posted by Cabledawg1 | May 17, 2021 @ 12:39 PM | 26,152 Views
Shipped Integy setup station to Jason in MA
Posted by GEMFAN ts | May 17, 2021 @ 02:43 AM | 34,458 Views
Here are 2 of the 4 NEW Freestyle Propellers release from Gemfanhobby!

𝗙𝗿𝗲𝗲𝘀𝘁𝘆𝗹𝗲 𝟯
Best for lighter Freestyle Quad without Gopro
Pitch:3'' Weight:3.5g SUG Quad Weight 550-650g
REC Motor: 4S 2300-2500kv 6S 1650-1950KV

𝗙𝗿𝗲𝗲𝘀𝘁𝘆𝗹𝗲 𝟰
Good for ALL Freestyle Quad with Gopro
Pitch:3.6" Weight:3.6g SUG Quad Weight 550-750g
REC Motor: 4S 2300-2500kv 6S 1650-1950KV
Colors: Jade Green, Raspberry Red, Peach Pink, Mango Yellow, Midnight Gray
Posted by cuavlindy | May 17, 2021 @ 01:15 AM | 31,714 Views
CUAV new products published on exhibition.
We will have live streaming on the exhibition on PST time 22:30PM 20th May.
Hope to see you online