Posted by jdixon77 | Jan 04, 2022 @ 07:34 PM | 55,182 Views
Not sure why all the sudden I wanted a night flyer, I am guessing it had to do with the summer days after work and wanting more time to fly. Having time to fly after work at my home field suddenly became possible when our office relocated changing my commute from an hour + in traffic, to 15-20 mins traffic or no. This gave me the extra time needed to charge batteries in the morning and head to the field after work, YAY!! But never quite enough time to fly as much as I would have liked, so I figured I needed something I could fly when it started getting dark. So I started out with the BlitzRC Wing Master, it was a large enough high wing and had plenty of lights, seemed prefect. With the exception of the weak landing gears, lack of viewing angles for the lights and flew like a kite caught in the wind...
Posted by Old_Pilot | Jan 04, 2022 @ 06:06 PM | 53,520 Views
Wow, got all the pieces separated, de-tabbed, de-furred, and collected into the groups......in the meantime, my supervisors showed up after a long vacation......
Posted by Quagga75 | Jan 04, 2022 @ 11:16 AM | 58,549 Views
Inspired by Mike Trew's design on Outerzone I modelled a modern version with EM Airfoils and slightly broader wing tips. The Washout is scale, however the tips still look "interesting" . I also included the original airfoil if anyone wants to test 19% thickness at 1-5th Scale .
Posted by Jack Crossfire | Jan 04, 2022 @ 02:28 AM | 52,592 Views
Commercial products are normally a bare plastic enclosure surrounded by a silicone sock to provide waterproofing. Lions don't have enough room for silicone fabrication & the remote has some impossible protrusions.

Incrementally greater taping began, in an attempt to simulate a sock. There might be a way to seal in just the wettest part with a TPU clamshell sock. The TPU clamshell could be heat welded. The area around the grip tab is problematic. It's almost easier to make the LED side & the back side 2 different socks held on by a mild adhesive, tape, or some novel farstener. The sock could be a disposable thing with a weak seam in the middle or defined weld points suitable for cutting.
Posted by cuavlindy | Jan 03, 2022 @ 09:21 PM | 52,904 Views
#drone#RTK#UAV#PPK
CUAV new product---C-RTK 2. Which is in presales time and available to order now .
It supports PPK & RTK, running real-time system, especially suitable for mapping,aerial survey,agricultural plant protection and other application scenarios.
C-RTK 2 presale deadline 31th Jan.2022. presale price$999, price will be changed to original $1080 from 1st Feb.
Please come and contect us for more information if you have interest in it.
Posted by Alan 3D | Jan 03, 2022 @ 08:56 PM | 52,457 Views
Lithium battery fires are very intense and produce extremely toxic and explosive gases that are lethal and corrosive. The damage from the smoke alone can be huge. There is no container that can contain a lipo fire due to the high pressure and gases produced by a burning LiPo battery. If attempting to keep a battery sealed in a container will cause the reaction to be much more violent which could explode.

One way to extinguish a lipo fire is to use silica Sand.
Most White Sandy beaches is silica sand made from quartz. If getting it at the beach is not an option you can purchased it at home improvement and hardware store.

One reason that sand is used to put out a lipo battery that has caught fire is that the lithium metal inside the LiPo battery when charged will actually ignite when in contact with water. That is why the battery is vacuum sealed to keep out moisture and humidity. Some batteries may even puff up and that is the gas that is built up inside the battery but it's sealed inside. A battery that is not sealed will most likely accumulate humidity and moisture which causes a chemical reaction and in worst case scenario a fire.

If water is available that can be used also but it will not put out the battery itself but can extinguish some materials that have caught on fire. The drawback with this is lithium reacts to water creating unwanted gases that are even more explosive than without water. Must be ventilation.


A gallon of dry silica sand weighs...Continue Reading
Posted by ruff1 | Jan 03, 2022 @ 10:53 AM | 59,526 Views
Nearly seven years ago Rickp started the thread User-Built Models for PhoenixRC https://www.rcgroups.com/forums/show...-for-PhoenixRC ] - since that time many people have subscribed to the thread and have pitched in to work on what was essentially a dead product. The outstanding contributions by many users to the thread have resulted in this product continuing on as a viable simulator, with new models arriving every few days. The latest count of models available is around 400. It has been amazing to me the out-of-the-box thinking that has gone into making models do things the original publisher never thought of doing.

I am pitching in to document a list of dongles that work with Phoenix version 5.5.L along with other associated information if available (most PCs running Windows 7, 8, 10 will work). Version 6 is NOT in the context of what is listed here.

Operating systems that work with the Phoenix cable in the original kit, we needed a place to document this:
Windows 7 Pro, original install, no upgrade.
Windows 10, original install, no upgrade.
Windows 10 Pro, upgraded from Windows 7 Pro.

Third-party dongles:
If you have successfully configured and are using a dongle not listed, or you wish to provide an update to the operating system for a particular device send me a private message with the details. Here is a recent posting about Phoenix RC and getting dongles to work:
https://www.rcgroups.com/forums/show...ixRC-Simulator
There is some discussion in...Continue Reading
Posted by RC Roundtable | Jan 03, 2022 @ 09:43 AM | 59,844 Views
Episode 143: "2021 Wrap Up" is now live!
http://www.rcroundtable.com/podcasts...pisode_143.mp3

In this episode, the gang talks about their highlights from 2021 and plans for the future.
-Our Christmas Loot (2:15)
-Our favorite models of 2021 (18:30)
-Plywood Overcast incident (35:30)
-Posts of the year (39:50)
-RDQ vs FAA (57:00)
-Fitz's Gull Wing Toy (1:03:30)

You can visit our website at RCRoundtable.com to listen over the web or download an MP3 of the show. Or, you can subscribe to RC Roundtable on iTunes.

We would love to read your comments and ideas. Please drop us an email: [email protected].
Posted by BAF23 | Jan 03, 2022 @ 08:45 AM | 58,213 Views
Year 2021

Early Januari 2021 I took the huge box containing a Windrider Boeing 737 down from the attic where it had been laying dormant for half a decade. After stripping all usable parts from my crashed Jetair B737 (go back to fall 2020 for details) I started to combine old and new parts to build a 90s era SABENA airline B737-500 that could be used in powered or glider mode. I never expected it still would take 9 weeks to complete that simple foam model but I really liked the result.

Pic 5480c


To read the complete build log of my second Boeing you can click on following link:
https://www.rcgroups.com/forums/show...-Sabena-livery

End februari and early March we had a couple of exceptionally warm days and I took the Funcub XL to the field for a series of much needed proficiency flight after the winter. After the rusty fingers loosened up I also got the Viperjet in the air but the clay on the still wet field stuck to the wheels and was close to jamming the gear upon retraction so after a few uneventful flights I returned home. Post-flight inspection of the Funcub revealed some minor problems and as I for correcting those I had the model open, I decided the time was ripe to undertake the modification to definitely abandon the standard Multiplex look and travesti it into a 70s era PA18 I used to instruct student pilots. After using a mix of yellow vinyl and blue paint I had in stock, and installing normal sized Cub wheels, nobody recognizes the original...Continue Reading
Posted by Rowhider | Jan 03, 2022 @ 07:59 AM | 57,204 Views
Hello,

Today a quick comparison between my two 4 wheels drived Rally cars:
TB01 Mitsubishi Lancer Evo V and my TT02 Subaru Impreza WRC 99

Tamiya TB01 vs TT02: Top 8 facts. Who is the best Rally chassis? (4 min 58 sec)

Posted by Old_Pilot | Jan 03, 2022 @ 07:05 AM | 54,587 Views
Got all the parts cut yesterday plus some extras...I even cut all the 1/8" sq secondary spars and 1/8x1/2 outboard spar caps.....I'll separate and sand today. Total cut time was a little less than 6 hours....I was cutting slow (40 in/min) and shallow (0.032" per pass) with a 1/16" single flute up-cut bit

I know I've said this before, but there is no way I could cut this by hand with the accuracy and precision of the router.....especially since I can nest parts and reduce the waste.
Posted by charlton29 | Jan 03, 2022 @ 01:49 AM | 54,336 Views
The final flights of 2021 had a 20-knot wind, a couple of inquisitive gulls and lots of sunshine. It was a bit of a wild ride, but tag along and enjoy!
Off with the Birds (6 min 3 sec)

Posted by scruffy1 | Jan 03, 2022 @ 12:05 AM | 53,405 Views
at least that's what i started with as a plan, but it always looked a little too stubby for my eye, and armed with my new laser (see the previous thread in the blog) and reckoning on the length of carbon rod(s) i have available, i cut (burnt?) a set of ribs that started at 16cm long and then got smaller as per the taper

initially i had wanted to use 2.5mm carbon tube for the leading edge, but my naive belief that it would bend like the 1/8" dowel specified was soon shattered (like the rod itself as i tried to see how much bend it could sustain, having had it detach from the carefully bespoke key in the wing tip after insufficient curing with the wrong choice of adhesive)

lesson learned - the hard way; i inserted some spruce 1/8" square where the carbon had been, after shaping it to ease the curve for the leading edge to attach to at the tip, and increase the hardwood bond for the ply key which will mount the throwing peg (pictures clarify this below)

so i thereafter glued the carbon tube spar with 20 minute finish cure epoxy, and the rest with the prep multi-adhesive that is perfect for most everything... but carbon

the wing tips were my first complex components made using the laser, and after a more elaborate initial iteration, i settled on a "simpler" design that worked out well - we'll see how well once it had to survive my launching forces
there is a shallow groove in both tip pieces to hold the carbon spar- in the original it looks...Continue Reading
Posted by ChillPhatCat | Jan 02, 2022 @ 08:47 PM | 52,080 Views
Its been a while but I am getting psyched for my latest build and I am still obsessed with biplanes, and my Pitts is still going strong without mishaps its just a fantastic plane.

Anywho, I have been trying to move into bigger airframes and have finally taken the leap. I had Balsaworkbench (Rob) cut me a short kit for the Bowman Ultimate which is on outerzone its a 28% 10-300 plan and designed for 30cc class gassers.

Well, no offense to Darren but its a sport scale plan (which is totally fine) and doesnt fit the dimensions perfectly and, well, I simply cant leave well enough alone in the first place the plane has a 64 inch span and is 66 inches long its basically too short, and I also didnt like the turtle deck which is not parabolic rather just has a circular cross-section at the top with straight sides and the sides of the fuse themselves are completely flat whereas the full scale plane has more of an inverted trapezoidal cross section.

Anyway what really set my insanity off was that I realized that 64WS and 66L was dead on for a 33% 10-200. So now Ive taken notes and studied 3-view drawings to the point my wife probably thinks Im nuts and I have scrawled all over my plans like Im building Devils Tower out of mashed potatoes.

This is a rough list of what has to happen Add cheeks to the central fuselage box to expand the from 8 inches to about 12-13 inches at the top tapering down to about 9 inches at the bottom and following suit...Continue Reading
Posted by BEC | Jan 02, 2022 @ 06:52 PM | 52,140 Views
In my previous post and a couple of comments added to it, I waxed enthusiastic about driving an EV and I still love doing so. But the particular EV we have is now suffering from noticeable battery degradation, with projected range on a full charge (in the the chilly Seattle area in January) down to around 50 miles.

Kia, in theory, warrants the battery (and the rest of the electric power train) for 10 years and 100,000 miles to at least 70% state of health. The car is a little over five years old and has less than 52,000 miles on it at the moment, so were within those limits comfortably. In using a third-party tool that talks to a bluetooth OBDI reader, I can see that the average state of health of the 400V (!) LiPoly pack is hovering right around that 70% point right now, with most all the degradation happening in the past year. So.in theory, all I have to do is get this verified by the dealer and they will order the new pack and away we go.

However, last time I was at the dealer (a software update/recall) they warned me that actually getting a replacement battery was taking a very long time (can you say supply chain?) so I have no idea, right now, how long it will take once the state of health falls below 70% and they verify it.

I will say that how Kia (corporate, Kia USA, and the dealer) actually handle this will determine if I will ever buy another Kia of any sort or not. Ive already lost access to the remote functionality through my phone since the car...Continue Reading
Posted by dangerdan | Jan 02, 2022 @ 04:43 PM | 49,725 Views
I spent 7 long days trying to solve this problem.
I wanted modified WAV files for my X10S. All I got was static and that was due to a wrong Bit sample option.

I wanted a permanent record, just incase me or others have this problem.

I went to the the original WAV files in Explorer and under Properties and Details tab, found the Bit rate was 512Kbps.
I then checked my new/modified files in Explorer and found they had a Bit rate of 256Kbps. Definitely a mismatch.

In TTSAutomate.3.1.0.1 under Voice options, I changed the Sample Rate from a high value to a lower one till I got a sample
rate of 512Kbps under Properties and Details tab in Explorer.

Problem solved. No more STATIC

All files now have a Bit Rate of 512Kbps.
TTSAutomate 3.1.0.1 Voice options are for a Sample rate of 32000 HZ and Bits per sample of 16.
Posted by Alan 3D | Jan 02, 2022 @ 01:02 PM | 52,845 Views
I have talked a number of times about how do you detect interference. One of my jobs used to be doing just that. Working in the industrial radio communications industry sometimes on towers as high as 2000 ft. I had $30,000 test equipment that I could do spectrum analyzations and more. So I do have work experience in the matter.

When I was in the industry and the equipment was being interfered with, all I had to do is disconnect the antenna cable from that equipment and connect it to my service monitor and see if it was interference there potentially interfering with this equipment or was it something more simple like a bad antenna, cable or connection.

What is different for Us RC pilots is where the interference is.

As an RC pilot I have seen many aircraft go down but only a few as a result of radio interference. Most of the time other than pilot error the aircraft went down due to a failure was because of the power source to receiver, defective equipment or bad installation, antenna orientation and placement and second would be mechanical failure. A distant last would be radio interference. Rare but does happen with equipment that usually is deffective or of very low quality. A system that is not working to its best is more susceptible to interference. Sometimes it takes two devices to add up to a failure. It could be a combination of both receiver and transmitter. Swap out one item and problem may go away. One example for me was I was using an aircraft...Continue Reading
Posted by Eternalflight | Jan 02, 2022 @ 11:14 AM | 46,469 Views
Pulled off all the 2.4Ghz analog FPV equipment off and installed the DJI FPV HD. Thought I would end up losing the boat as this lake seems to be full of Asian Carp. GoPro 7 mounted to the front.

DUMAS WINDY - FPV ELECTRIC AIRBOAT (3 min 13 sec)