After the 13 mile fiasco, some documentation of tire compression with a typical payload. It clearly is a matter of traction vs stiffness. The flat treads need a lot more material to be as hard as the curved treads, but are necessary for any traction.

A tire with a slightly curved tread didn't get any stiffer. Changing the number & straightness of the spokes didn't make a significant difference. Putting the extra spoke material into more tread thickness might make it stiffer. Printing spoked tires with .4mm layers takes only 2.5 hours.

There is a new honeycomb design with a flat tread & integrated motor mount, but it takes 10 hours & the lion kingdom is low on filament again.

Gemfan Cinelifter 7035-3
Material:Reinforced PC
Drone: Cinelifter & Freestyle
Durable enough, amazing response and smoother!


Gemfan LR 7035-2
Material:PC
Drone: Longrange
Better efficiency for long range

At the end of March 2021 I finally received my long awaited FMS Rafale

Here's my first Rafale vid showing that the plane is perfectly capable to take off from a rather shot grass field that doesn't resemble a golf court.

FMS Rafale: world's first vid on a grass runway (4 min 12 sec)

I'll share my mods and more info in the next posts!

Here are some pictures of my new Parkzone P51.

RC Glider 2M Building "SIMPLE LADY" Part-2 Fuselage, servos, Stabilizer, Balsa, Carbon Fiber, DIY (20 min 20 sec)

Shipped Losi 1/14 Mini Desert truck to Rick in Montgomery IL

wrung it out with no gear this time, getting the elevator trimmed out

PERFORMANCE WRING OUT! UMX A-10 Thunderbolt II 30mm EDF with AS3X and SAFE Select (6 min 30 sec)

I see routing suggestions on RCG and FB that real model pilots don't need autopilots or gyros. While I think a lot of models can be flown without them, I don't see a problem with using them. AS3X provides gyro functions but it is not an autopilot. I think of it as being a simulation of actual pilot actions in an aircraft. If you watch some videos of pilots (check out the YouTube videos of Trent Palmer or Juan Browne's Blancolirio channel) you will see the pilots make continuous inputs to the controls. While it's been a long time since I have acted as PIC, I do remember that as you learn to fly and gain experience, you do just start responding to the effects of he atmosphere on the airplane automatically. That's what AS3X does, it replaces you subconscious actions since your are not in the plane to act.

My Airfield Tempest 800mm (31”) Warbird would just never fly right. It only had one battery and a dedicated Tx that took 8 AA batteries. When it did a destructive nose dive it had enough cracks and bent motor shaft that I was done with it.

The electronics came out easily enough. It was like stripping out the nervous system of some kind of dead robot. The control rods were very long and thin. The ESC was more like a motherboard. However I was impressed with the multiple inputs on the receiver and the string servers.

"Chona" is a Ziroli 100" A1 Skyraider scale model. The Ziroli kit was built by Ramon Medina, one of the best model builders in Puerto Rico. The model was built around 2015. Since Ramon built it, I shared with him that if he ever sold it, I would be the 1st in line. I purchased the model in 2017, some months before Hurricane Maria struck Puerto Rico.

Ramon is not a fan of installing any external payload in his models. Even thou he had made the payload pylons and missiles for the A1 Skyraider to carry, he never installed them. This is one of the things I added to the model. I added the payload pylons and installed E-flite payload releases. I made 2 droppable Napalm bombs for those two pylons. I also finished and installed the missiles and rocket tubes in the remaining wing pylons.

In 2017 I gave the Skyraider my maiden flight, (it had been flown multiple times before by Ramon). The model flew perfectly. I did experience scary moments when prior to the 1st landing, the main landings didn't fully extend themselves. Ramon, who was standing right next to me, told me that this was normal. Ramon explained that the landing gears and big 5.5" wheels created such drag with the airflow that the gear would not fully extend itself unless you slow the model significantly. Taking this measure, the retracts would be able to win over the airflow and fully extend themselves. This really gave a goosy feeling since I was not going fast when I attempted to extend the...Continue Reading

Dancing Wings Hobby PITTS 450mm Aerobatic Brushless Micro Biplane BNF Kit - Review Part 4 Re-Maiden!

Get One Here: DWH Pitts 450mm Wingspan Aerobatic Biplane
https://www.banggood.com/custlink/3vvd8QP0qv

RadioMaster TX16S Multi-Protocol OpenTX Transmitter

Get One Here: RadioMaster TX16S Transmitter
https://www.banggood.com/custlink/DvvycmfSMK

Here is a link to the Video:
https://www.youtube.com/watch?v=AMMU0oJ26kY

This Plane is Courtesy of Banggood, I want to than Banggood for sending this Plane for Review ;-)

I installed Carbon Spars on the Lower Ailerons, much improved, and added approx. 1.5 degrees of Right Angle in the Motor to counter Torque.
If the Weather holds I'll be Launching it again this Morning 😉
Fingers Crossed!

2 Pairs HQprop Durable T5X3 5 Inch 5030 Propeller
https://www.banggood.com/2-Pairs-HQp...47791920140372

Banggood GCRC
https://www.banggood.com/custlink/GmDmQ1nVkO

You can help support us by using our affiliate links to the products above. A small commission (At No Cost To You) helps us buy more items to review.

#GroundControlRC #GlueAndFly #GCRC #GFS #ScratchBuildPlanes #DancingWingsHobby #Pitts450 #PittsBiplane #RadioMaster #TX16S #OpenTX #4in1Module Best Cheapest


See you in the Air!

Build, Fly, Crash, Repair, Rinse & Repeat!

Ground Control RC™ Glue & Fly™ Series Scratch-Build Planes

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New product this week :
AG18 18L Folding Hybrid Electric 6Axis 18LSpray UAV Agricultural
http://brushlessgimbal.ca/RTF-Ready-...V-Agricultural



New product this week :
SIYI AK28 RC transmitter Android Smart RC Remote Controller
http://brushlessgimbal.ca/Transmitte...ote-Controller



New product this week :
Lightware SF40/C 100 Meter Laser Range finder For Pixhawk UAV
http://brushlessgimbal.ca/Auto-Pilot...or-Pixhawk-UAV
...Continue Reading

My steam model tug boat project

My koala model tug boat project

Got out this weekend for my first 2021 flights. Nice day.

Hi
In this a small build up log. I’ll go ONLY through the issues in the building manual that I have encountered and can give some advice on (The remarks could be also good for other TOPMODEL CZ models).
I have ordered the ADRIANA glider directly from TOPMODEL CZ shop. It was packed nicely and has arrived in perfect condition.
Building parts quality looks just great.



...Continue Reading

Gemfan X CLASS 1308
2 Materials:
𝗥𝗲𝗶𝗻𝗳𝗼𝗿𝗰𝗲𝗱 𝗖𝗮𝗿𝗯𝗼𝗻 𝗡𝘆𝗹𝗼𝗻
Weight 42g
Stiffer
Higher efficiency
𝗖𝗼𝗺𝗽𝗼𝘀𝗶𝘁𝗲 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹
Lighter weight 39g
High efficiency as well
Amazing response and smoother
Perfect for freestyle and cinelifter


Any one want to try?

Yeah , the 3D printed one .
I completely messed up the all moving elevator because I put the control horn in the wrong place .
Bad ju ju with a all moving elevator .

it's taken me this long to get around to designing and printing a replacement .

Previously : My launches were all over the place because if my fopar . Seemed to glide ok ( seemed to ) .

So hopefully with the control horn in the correct place , I can have consistent launches . ( Well , one can hope )

Just need for Hobbyking to pull out the proverbial finger and get STUFF in stock .

A 13.75 mile drive with a decent payload went slowly & ended in battery death. The increased traction of these tires wasn't worth the reduction in range. It actually hit a wet patch & spun out, but these tires have never spun out as much as the stiff ones. It burned 335mAh/mile, still in line with the lunchbox but real slow.

The motors couldn't go very fast with the full payload on level ground & that was the deal breaker. There could be a new tire with a very slight arch to bring back just enough stiffness without requiring tons of material. Real car tires are flat, but it takes a lot of material to make them stiff.

What's needed is a tire which can be made stiff when it has a payload & flexible without a payload, without air pressure. Having a variable diameter based on desired speed would also be a win.