Posted by MarcusRC | Today @ 04:13 PM | 1,798 Views
Hey their! New member. I am starting a blog about updating vintage rc’s. I had the buddy L rattler as a kid and want to bring it back to life. It’s missing the transmitter so I’m replacing everything.

Part one here;

10x wheel drive The RATTLER RC vintage upgrade (Part One) (13 min 6 sec)


Ide be more than happy to have you fallow along and have input. Thanks!!
Posted by Jack Crossfire | Today @ 03:56 PM | 2,709 Views
After continued motor overheating, the latest theory is the motor wiring is getting snared in the encoder, causing the motor to stall. It's a tangled mess after many rebuilds. The right tire, right wheel, motor cover, motor plate all need to be reprinted. It needs to be rebuilt, with the cable untangled. It's a several day job. The short term solution is keeping the wires under tension so they don't flop into the encoder.

The CAD model doesn't show any obvious way for a cable to get into the encoder. The cables are on the outside of the TPU.
Posted by nagas | Today @ 11:19 AM | 3,234 Views
Pitts Sky Car "Umbrella" Ornithopter (2 min 8 sec)



We have all seen the movies of this early ornithopter pumping and bouncing as seen in the 2nd video below and had a good laugh. However, the idea was not quite as ridiculous as it may seem at first sight.

The "umbrella" was not just a simple membrane which of course would be unable to provide any lift. It was in fact an ingenious and sophisticated device that had been well thought out even if it wasn't successful.

It was composed of sixty radial slats that opened on the upstroke allowing air to pass through and closed on the downstroke trapping and forcing air down. In addition, it also spun on each stroke in an attempt to generate more lift. These movements were driven by a complex mechanism with gears and cranks to generate the spin and reciprocation. 

"Jack" John W. Pitts filed a Patent for his idea in 1924 which was granted in 1926. Pitts, in collaboration with W. P. Kindree constructed two versions, the first of which was tested in 1928. 

Apart from the Patent and newsreel movies that were made, little more is known about Pitts or his aircraft. 

The first version which is modeled here was powered by a 65 hp engine of unknown manufacture. The second version was much more robust but weighed a massive 1,200 Kg (!) and was powered by a Curtis OX-5 90 hp engine.

As It was not possible to determine the manufacture of the engine used in the first version, the Curtis ...Continue Reading
Posted by turbinefancy | Today @ 10:36 AM | 3,420 Views
FPV close formation practice flying figure 8 in two identical RC EDF jets - E-flite Viper 90

Plane: E-flite Viper 90mm EDF Jet
RC TX: Tandem X20S
Stabilizer: Hobby Eagle A3 Super 3 V2
FPV Gear: DJI FPV Goggle V1, Air Unit, Camera
Head-Tracker: Aerocali Wireless HT, PARA enabled
Pan & Tilt Camera Mount: Motionsic BAG - BadAss Gimbal

#FPVjet #FPVformation #headtrackingFPV #MotionsicBAG

E-flite Viper 90 FPV Figure 8 Formation (2 min 38 sec)

Posted by djmoose | Today @ 08:05 AM | 4,248 Views
Here's the first episode of a video series where I'll be putting together the 20cc Phoenix Model A6M2 Zero. We'll also visit a REAL Nakajima-built Mitsubishi A6M2 Zero on display at the National Museum of the United States Air Force™ at Wright-Patterson AFB near Dayton, OH.

Unboxing of the Phoenix Model 20cc 68" Wingspan Mitsubishi AM6 Zero ARF (14 min 53 sec)

Posted by Old_Pilot | Today @ 07:28 AM | 4,391 Views
Finally had to replace my old combat ship

36" WS, KF-2 airfoil
3530-1200 Kv motor
8x6 APC-E
17gr MG digital servos
Admiral 8 channel receiver
60 A ESC with 5V/5A BEC
2600 mah 60C 4S battery
Posted by Calypso6858 | Today @ 03:34 AM | 5,893 Views
Piel CP.30 Emeraude: After flying and building a few Pinocchios, Claude Piel had started Avions Claude Piel to sell aircraft plans. The first set of plans that really attracted customers was the CP.30 Emeraude.

The Emeraude was an enlarged version of the CP.20 Pinocchio. Scaled up large enough to fit two people seated side-by-side. The original Emeraude was built to be extremely lightweight and had just a 65hp Continental to power it. It still had the beautiful elliptical wing under it (with full elliptical tips) and was constructed entirely of wood. Unfortunately with revisions to the plans those pretty elliptical tips got clipped almost immediately.

The Emeraude was clearly garnering interest, so Piel decided to license it for production. At least 11 producers manufactured Emeraudes or airplanes based off of it. They were produced in France, England and South Africa. Most production versions housed a larger engine of some sort. Emeraudes have been flown with almost every major production 4 cylinder Continental and Lycoming. (A-65, C-85, C-90, O-200, O-235, O-320, O-360)

While manufacturers continued to evolve the design, so did Piel. The Emeraude evolved through at least 22 variations. The variations included mostly different engines and small structural changes. The first major update of the airplane was the Super Emeraude which looked very similar but was strengthened and certified for aerobatics.

The Super Emeraude was adapted by Mudry into the CAP 10. The...Continue Reading
Posted by Calypso6858 | Today @ 12:31 AM | 7,215 Views
Piel Pinocchio: The history of the Pinocchio, not unlike many other vintage airplanes, is incredibly hard to follow. The CP.10, CP.20, CP.90, CP.210, CP.211, CP.212 and CP. 215 were all named the Pinnochio and some were vastly different airplanes.

Technically the story of the Pinocchio starts with the CP.10. In 1948 Claude Piel, in his ambition to begin designing airplanes, built the CP.10. The airplane was significantly based (okay you could say copied off of) the Mignet Pou du Ciel “Flying Flea” and was powered with a Ppinsard 25 hp two cylinder opposed engine. While the first Pinocchio was successfully flown, it was a short lived success. 5 hours and 30 minutes to be exact. The Pinocchio didn’t quite make it to six hours of flying time before it crashed with Piel at the controls.

Abandoning the strange design of the Pou du Ciel, Piel started a new design from scratch. The CP.20 bore the same name but the similarities stopped there. The new design was now influenced by the Spitfire. But scaled down to tiny proportions. It had an intricate wooden elliptical cantilever wing which would turn out to be Piel’s signature design. Up front was a whopping 25 Volkswagen produced horsepower. The tiny cockpit seated only one with a handsome bubble canopy overhead.

The new CP.20 turned out to be quite a successful design and Piel immediately published plans for it. The CP. 210/211/212/215 were all variations of the original design with different engines. Salmson AD9s and...Continue Reading
Posted by RCWorks | Yesterday @ 01:29 PM | 12,144 Views
Joe can't quit with the weird stuff put to music.

Joe.I.Am's (aka Joe Biden) Town Hall REMIX (My Butt's Been Wiped) - The Remix Bros (2 min 17 sec)

Posted by Scott Eastman | Yesterday @ 12:50 PM | 12,245 Views
I recently bought an estate sale lot of rc planes and equipment. Attached is a plane that i cannot identify. It needs a new firewall and I have an engine for it. Its probably pre 1980 since the servos are futaba and have a square piece for the control arm to attach. Its an F14 USS America designed for an engine with propeller up front. It has air retracts. I would like to get drawings so i can make a new firewall. Any help identifying it would be appreciated
Posted by PittSpecial | Yesterday @ 11:30 AM | 12,886 Views
Well,

A few months ago my GWS pico Tiger Moth sustained an ugly Right Wing Crash because I erroneously took out almost all of the wing dihedral and was stupid enough to hand launch it and it slipped into an inverted flying position. Fortunately, I was able to recover it in time and had the model flying right-side UP again but, the landing was not good and Right Wing ripped.

My efforts of gluing it back was amateur like by leaving the wing in a position while glue was curing that caused some sort of wing distortion (Wash-In) instead of Wash-Out, definitely the two wings not matching for sure. I made sure that the wing dihedral was placed back by gluing an Aluminum short Tube at the bottom of bottom wing, however, during in-flight observations, the Tiger Moth was observed to stray (slide) to lean towards the Right (a gentle stall) while mid-flight. Correcting this was no issue by applying a slight down Elevator and of course a tiny amount of Left Rudder.

However, all of this has caused me to re-think things as my Tiger Moth is no longer "Hands-Free" type of flying and you have to watch it carefully. I have taken steps to correct the Wash-In and settled using some home made tools (Large Clamp with heavy magnets) to pull down the rearward bottom Right Wing to at least match the Left wing.

No guarantee of the results but, I just hate breaking up the bottom Right wing again to provide the correct amount of Wash-Out and the glue etc...

Everyone that has seen it fly recently with this wing issue says it still flys majestic but, guess who has to correct at the controls!
Posted by Kearn | Yesterday @ 07:43 AM | 14,404 Views
Has anyone seen or have a Alitalia Cap 232 with a 73" wing. All i see is a 80" wing . Looking for the manual for this place. I believe it is a Hangar 9
Posted by Keroburner | Yesterday @ 05:22 AM | 15,270 Views
The wing profile is enough to give you headaches, double curved with drooping leading edge, a bit like the Concorde . There are no two identical ribs from root to tip.
Posted by Calypso6858 | Yesterday @ 02:59 AM | 16,665 Views
Piel Homebuilts: Today Richard VanGrunsven has made homebuilding aircraft a very reachable goal with Vans aircraft. Of course Vans has a single seat version, two seat versions in both side-by-side and tandem variants and a four seat version. While that seems like a neat modern idea, a little french company actually had a very similar lineup a long time before Vans.

Claude Piel’s first particularly successful airplane was the CP.20 Pinocchio. Even being the first airplane in the Piel lineup, it carried the signature design feature. All of the Piel airplanes feature a complex elliptical wing not unlike that of a spitfire. The little single seat Pinocchio had a tiny VW engine up front which made it a nice flier. About 20 CP.20s were built with a handful of engines including one powered by a Salmson AD9 9 cylinder 40hp radial. (I can’t find any pictures but it must have looked awesome)

With the success of his first design egging him one, Piel designed a series of aircraft which may be the most popular french homebuilts. The Pinocchio was the single seat version. Next up was the Emeraude which was an enlarged Pinocchio with two side-by-side seats. Then came the Diamant which was increased in size yet again allowing for four seats. And finally came the Beryl which was the same size as the Emeraude but seated two in tandem. His plans also included nosewheel options in some cases just like RV does today.

It’s impossible to add up how many of Piel’s designs have been built,...Continue Reading
Posted by lawrence4 | Sep 22, 2021 @ 10:35 PM | 18,273 Views
Speedy Bee water foot test run (1 min 16 sec)


It's look like the motor not enough power to take off from water.
Posted by FeiJi | Sep 22, 2021 @ 10:16 PM | 18,365 Views
Saw this wonderful Depron plane with free plans (in English too) here: https://www.flugmodell-magazin.de/do...-flinky-turbo/

You want a cool but simple, all-purpose parkfly racer? Build Flinky Turbo. (7 min 9 sec)

Posted by kopterheld | Sep 22, 2021 @ 09:03 PM | 18,937 Views
Although it only has 0702 motors, the 65mm Whoop flies great and finally without failsafe thanks to ExpressLRS, and the VTX is really good at 25mW
Video -
HappyModel Mobula6 ELRS - ExpressLRS mit super Empfang (3 min 45 sec)

This is Mobula6 ELRS with 0702 26000KV motors that is flown with two blade propellers. A great 65mm whoop who can do freestyle well with super good video reception at 25mW. Thanks to the ExpressLRS receiver on the board, the Whoop has a great range without failsafe. Over 400 meters range and that with a 65mm Whoop!

HappyModel Mobula6 ELRS
AE - Code: EOSSAFF13 - https://s.click.aliexpress.com/e/_A4ExWW
AE - https://s.click.aliexpress.com/e/_ACwgnU
BG Coupon: DRONES6 - https://www.banggood.com/custlink/Kvvy6toONu

TBS Ethix Mambo
FPV24 Code: FPV5 - https://bit.ly/F24MAMBO

BetaFPV ELRS Nano TX Module
Amazon - https://amzn.to/2XIaeNp
BG Code: PARTS8 - https://www.banggood.com/custlink/D3vR6KAOpJ
BetaFPV - https://bit.ly/BF2ELRS2NANO

BetaFPV Micro Nano Module JR Adapter
BG - https://www.banggood.com/custlink/KDDY6dfsVr
BetaFPV - https://bit.ly/BFM2NAD

SKYZONE SKY04X OLED Goggles
BG Code: BGAC1911 - https://www.banggood.com/custlink/DGKRtCvofJ

Here my Mobula6 ELRS setting with original PID

# Betaflight / STM32F411 (S411) 4.3.0 May 15 2021 / 10:33:08 (norevision) MSP API: 1.44
# config: manufacturer_id: AIRB, board_name: OMNIBUSF4SD
batch start
defaults nosave
#board_name CRAZYBEEF4SX1280
#manufacturer_id HAMO
#mcu_
...Continue Reading
Posted by Jack Crossfire | Sep 22, 2021 @ 08:11 PM | 19,213 Views
Heat sinks went in on

https://www.rcgroups.com/forums/show...sink-attempt-1

May 20 & worked well for a few months. Then came another case of a screw coming loose, the encoder going out of alignment, & the motor stalling. It quickly overheated & melted the PLA, feeding back into the stall. The heat sink was initially only slightly warm. The good news is the heat sink quickly got hot. It definitely took out some heat. The motor cooled down more quickly than it did without it.

The lion kingdom stopped using PETG because it's heavier than PLA & it requires enormous heat to print. The melted PLA has never permanently killed it. What's really needed is a screwdriver which can tighten the screws in the field. Those screwdrivers are gigantic.
Posted by solentlife | Sep 22, 2021 @ 12:03 PM | 22,204 Views
There are some really ignorant individuals who frequent forums. The fact that they get banned from other forums - doesn't seem to change their attitude or ways.

You try to accommodate - you go the long road to accept their way of doing things - pointing out that their way is theirs and others have their ways .....

Its a wasted effort .... they keep plugging on ruining good threads - oblivious that literally no positive replies to their self-indulgent posts and videos ....

I understand that the larger a forum membership gets - the likelihood of such idiots increases ... but it still destroys good threads and makes for moderators headaches.

Anyone reading this - I am sure know exactly which idiot I am talking about ....
Posted by DutchRC | Sep 22, 2021 @ 11:13 AM | 21,962 Views
Howdy people

I have me another FPV drone in.. In fact I have Two similar quads in:
+ BetaFPV X-Knight 35 HD
+ GepRC Smart 35 HD
Almost identical quads really.. Therefor my reviews of the 2 will be a bit different!

First I'll do a "box 2 flight" review of both in which I show you how easy (or hard) it turned out to be to get them to fly (well)..
After that I'll do 1 extra video in which I compare the 2...

Sooooo let's first see how flight ready the BetaFPV one is
Link to it: BetaFPV X-Knight 35 HD

BetaFPV X-Knight 35 - 3.5" Endurance quad? :) - Show & Tell & Test (21 min 2 sec)


Specifications:
type: Endurance Light Weight
wheelbase: 155 mm
base thickness: 3 mm arms
material(s): T700 Carbon Fiber + allu standoffs
dry weight: 151 grams
flight controller: BetaFPV F4 AIO 20A v3
firmware version: BetaFlight 4.2.3 (old!)
ESC's: BetaFPV F4 AIO 20A v3
motors: BetaFPV 1404 3800 kv
propellors: HQ 3520 x3 AND Gemfan 3520 x3
FPV camera: Caddx Polar (DJI Digital)
VTX: Caddx Vista (DJI Digital)
GPS: nope!
Lipo: 750mah 4S (not included)
OSD: yes by DJI
smart Audio: yes by DJI
buzzer: nope
LED's: nope
spare props: yes.. you get Two (different) sets
Build quality: 6 / 10
packaging: 8.5 / 10