Posted by Doom 3D | Today @ 09:08 AM | 37 Views
The changes they made

Starting with the new ecu......

- GSU connects via a servo cable, no longer the large dateline cable used on all the dinosaur systems.
- Smaller, lighter, much more processing power.
- Due to more processing power, lower idle RPM, faster accel/decel is capable due to higher RPM accuracy.
- Single cable from ECU to engine (seperate valve and pump cables).
- More adjustable parameters including preset accel/decel curves all custom to every engine built for maximum performance.

Now the engine........

- Starting with a brand new Billet CNC compressor adding more power and efficiency. Thrust=3.8kg! With a weight penalty of <5grams.
- Single cable braided into a special connector used for the new ECU.
- Redesigned combustion chamber, exhaust/thrust nozzle, center cone, stronger welds.
- Micro JST added to starter motor wires from factory to aid in removing and installing fod screen easier.
Posted by Old_Pilot | Today @ 08:15 AM | 100 Views
Already thinking about the next build....built this one back in 2014 with twin 64 mm fans....I'm thinking twin 70's this time
Posted by VicT | Today @ 05:58 AM | 318 Views
I got to maiden Jack W’s new Eflite Extra at Odessa Fl after a WPMPA club meeting. The 300 is popular with at least 3 other club members in our 100 member club. I know that some aluminum motor mounts have caused vibration and have failed leading to replacement. The music wire landing gear can get bent and I have retrofitted the 300 with a Dubro 40-60 nylon gear legs. This gear does not break or bend and can be screwed or bolted further forward to reduce nose over damage while moving on the surface. most likely Horizon will discontinue the 300 and fix the design adding a 637T for telemetry. Cost will increase but it will be worth it in my opinion.

Jack wanted to preserve the nice fragile stock prop from such nose over damage so replaced it with an APC plastic 13/6.5 prop. On run up on a 4S she caused severe vibration. The factory spinner was removed and this helped but the prop was removed and rebalanced. This still caused vibration. Luckily Manny came to Jacks aid with a brand new 13/4 APC still in the package. The bore was reamed out enough to easily clear the shaft adapter and the largest plastic ring was pressed into place. This took away all vibration (no balancing required using the ring) however when the nice looking plastic backplate and spinner was added the vibration returned. So the maiden was completed with out the spinner and backplate. Jack’s Wattmeter measured 45 A , 670 W on a 3600 4S Venom and 31 A 334 W on a Venom 3200 3 S. We got 8 min of...Continue Reading
Posted by jmxp69 | Yesterday @ 06:51 PM | 1,588 Views
I've got the ZOHD Dart 250g flying pretty straight now. Rates and gain info in the video description:
ZOHD Dart 250g FPV Version • Kopilot Lite Dialed-In • HD and OSD Footage! (7 min 59 sec)

Posted by kopterheld | Yesterday @ 06:27 PM | 1,654 Views
Here how to update - install the DFU Bootloader from iRangeX iRX4 lite and install the latest multi protocol module firmware on the irx4 v

Video with EN subtitle
TBS Tango 2 mit Multi Protokoll Modul und Mobula6 binden (7 min 36 sec)

After updating the irx4 you can see the RSSI on the display in the radio by using D8 protocol.
With the v FW you can directly update later the iRx4 with the TBS Tango 2 radio

Coupon: BGIRX4LOT -

Mobula6 - Coupon: BGhONEY10 -
Mobula6 HD -

My Kopterheld Coupons on Blog, Telegram or FB:
FB -

My Equipment:
DJI Digital FPV System -
Fatshark Dominator HDO2 -
ImmersionRC RapidFIRE -
Taranis X9D Plus SE 2019 -
Jumper 4IN1 Multimodule -
FrSky R-XSR -
CADDX Ratel -

Youtube –
FB -
Blog –
RCGroups –
Telegram -
Instagram -
Twitter -
Posted by kopterheld | Yesterday @ 06:14 PM | 1,673 Views
Here my video how you install the module bay on the tango 2 Pro and use the Multi protocol Module iRX4

The Video have en subtitles.
TBS Tango 2 mit Multi Protokoll Modul und Mobula6 binden (7 min 36 sec)

My steps:
- Update the Tango II firmware
- Update the Crossfire firmware
- Upload new data to the SD card
- Install the module bay
- Create a model for the Mobula6 on the Tango
- Pair the whoop with Tango 2 and fly.

Coupon: BGIRX4LOT -

Mobula6 - Coupon: BGhONEY10 -
Mobula6 HD -

My Kopterheld Coupons on Blog, Telegram or FB:
FB -

My Equipment:
DJI Digital FPV System -
Fatshark Dominator HDO2 -
ImmersionRC RapidFIRE -
Taranis X9D Plus SE 2019 -
Jumper 4IN1 Multimodule -
FrSky R-XSR -
CADDX Ratel -

Youtube –
FB -
Blog –
RCGroups –
Telegram -
Instagram -
Twitter -
Posted by GroundControlRC | Yesterday @ 07:24 AM | 2,874 Views

XK A160-J3 Skylark 3D/6G System 650mm Wingspan EPP RC Airplane RC Plane RTF - Specs, Info, Tips, & Maiden Flight ;-)

XK A160-J3 Skylark Cub RTF

Banggood GCRC

Here is a link to the Video:

A little Plane with a lot of details and cool features ;-)

Spare Parts (I believe the Parts for the XK A430 Edge will work with this Plane as per discussions on Banggood)

XK A430 2.4G 5CH RC Airplane Spare Part 7090 7x9 Propeller

Tip on Balancing Props when you can't use a standard Prop Balancer:

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 #ScratchBuildPlanes #XKA160 #XKJ3 #XKSkylark #J3Skylark #banggood

See you in the Air!

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

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

See Us On Youtube | Patreon | RCGroups
Posted by Tazkiller85 | Yesterday @ 05:04 AM | 3,072 Views
iFlight CHIMERA4 LR - Review Test Démo - Long Range Freestyler ... (44 min 34 sec)

Yep Les Amis,
Une CHIMERE bien Réelle ! lol . Comme vous allez le constater, ce test du CHIMERA4 LR de chez iFlight a été laborieux ! Mais au final, c'est pas plus mal car on a pu tester une météo différente sur 2 jours et également la config avec le 2ème jeu d'hélices. Donc pas déçu par ce petit 4 pouces, un bon compromis entre le Long Range, le Cruising et le Freestyle. Avec une bonne lipo entre 850 et 1000mAh en 4S, on aura une bonne autonomie d'environ 8 à 12mn en vol tranquille, et avec un 650 ou 750mAh, environs 6 à 7mn de freestyle, sans problèmes. Un châssis résistant et un bon équipement électronique, je ne peux que valider ce Chiméra 4 ! Bon Film et merci à tous pour votre soutien .

NOTATAZ : 18.5/20 Je valide !!!

Les + : Costaud, Autonomie correcte, Tarif intéressant, Accessoires fournis, Bien réglé sortie de boite, Polyvalent LR et Freestyle, Bien équipé.
Les - : Un buzzer autonome et des bras détachables aurait été un plus, TPU caméra à modifier ...

- Chronologie de la vidéo :
Unboxing : 00:15
Présentation: 05:45
Vol à vue : 12:57
Vol à vue : 09:42
Vol en FPV 1 : 12:48
Panne GPS ! lol : : 21:03
Vol en FPV 2, Test RTH : 21:25
Transition jour 1 et 2 : 27:39
FPV Freestyle : 30:12
Débrief et conclusion : 36:08
Mon betaflight : 43:43

- iFlight Chimera4 LR HD 3800KV ( Coupon BG10LRCMR4 ) :
-...Continue Reading
Posted by Tazkiller85 | Yesterday @ 05:03 AM | 3,074 Views
SunnyBag ICONIC & EMAX ECO II - Review Test Démo - ECOlogie & ECOnomie ! lol (18 min 57 sec)

Yep Les Amis,
Vidéo ECO ... Ecologique et Economique ! lol.
Bon Film et merci à tous pour votre soutien .

- EMAX ECO II 2207 1700KV / 1900KV / 2400KV :
- EMAX ECO II 2306 1700KV / 1900KV / 2400KV :
- EMAX ECO II 2807 1300KV / 1500KV / 1700KV :
- Site EMAX :
- Sac à dos solaire SUNNYBAG :
- PowerPack SUNNYBAG :

Lots du Concours PERMANENT :
- Eachine TYRO 79S RTF :
- AKASSO Leave No Trace :
- MJX Bugs 7 :
VIDÉO du Concours Permanent (Comment participer) prochain tirage le samedi 31/10 :
SPEEDY BEE 2 - Review Test Démo - Lancement Concours Permanent ! (17 min 28 sec)
...Continue Reading
Posted by Tomcat Dynam | Yesterday @ 01:27 AM | 3,410 Views
Are these features of Detrum Smart DT9 you'd like ?🙂

*Voice broadcasting system
*Charge online
*Wireless Trainer system
*2 timers
*Store up to 250 models
*4096 high section precision sticks
*Vibration alert for alarm conditions and low battery
*Dual antenna diversity
*Flying Date back
*Set programming parameters of ESC online
*Set programming parameters of stabilized or Telemetry receiver
*SD card support ,upgrade and import/export data
*RTH easy with receiver SR86A-G or RXC9 with Z3

#SmartRadio #9ch #airplaneradio #telemetry #detrum

Detrum Blitz DT9 / Sr86A-G GPS receiver (23 min 4 sec)

Posted by VicT | Oct 23, 2020 @ 09:47 PM | 3,799 Views
The free flight models use a de thermalizer system to stop the model from flying away. I wanted to do the same with the Elf and came up with a system that uses the flying stab to stop forward motion and bring the Elf vertically down. I programmed the elevator rate switch C2 to give full up that stalls the model but keeps the model level as it descends. If I release full up elevator the mode resumes flying. The Elf has to slow down gradually before applying full up elevator to get the correct level attitude before the descent starts. My low rate C0 switch postion is programmed for the Launch mode. I have elevator trim set for a high speed throw with about a 80 degree climb angle. At top of climb I can keep her in Launch mode for aerobatics or move the switch to C1 for Cruise Mode with a little more up elevator, or go into Thermal Mode C2 with more up elevator. I have the rates adjusted so that full up stick gives me the correct elevator angle for a vertical fuselage level descent. The Expo is adjusted so that normal elevator travel is available but full stick gives me full up elevator.

In flight adjustment is required to find the correct angle. An incorrect elevator angle will cause a porpoise descent or stall repetition. To prevent a nose down crash release full up elevator to recovery from the stall/crash manuever. Your CG will have an effect on the angle. My CG is slightly forward (2.9 inches) from what Vladimir’s 2.9-3.3 inch range....Continue Reading
Posted by VicT | Oct 23, 2020 @ 09:01 PM | 3,831 Views
After the 6 year old 250 mah 1S battery failure the crash broke the phenolic rudder horn and nylon stab fixture. I used thin CA and accelerator to re secure the nylon to CF boom bond. For the rudder horn I replaced it with aluminum that is bent 90 degrees for a stronger bond to the fiberglass rudder skin. I measured the music wire diameter and used some spare wire to drill a hole in the aluminum for a no slop fit. To fill the void around the rudder slot I used brown Gorilla Glue to expand and fill in the void. I have about 20 throws with no cracking or damage to the repair areas.
Posted by VicT | Oct 23, 2020 @ 08:52 PM | 3,836 Views
I bought my Elf from Kennedy Composites in Jan 2014 and have about 35 hours indicated on my DX9 transmitter. She has an AR400 with out the case and Dymond D47 servos for elevator and rudder. I purchased the Shread-RC 240 mah 1S voltage booster/charger.

Last week on the 5th or 6th throw she lost power to the receiver and Elf impacted the soft ground hard enough to break the CA glue bond for the plastic stab fixture. I checked battery voltage and with 2 beeps this figures out to 3.5 + .2+= 3.7. However after cycling the rudder for about 20 seconds the red power LED extinguished. So with 6 years of use I figured it was time for some preventative maintenance.

I emailed [email protected] but with no response I purchased a 300 1S lipo from . The Shread-RC 250 battery weighs 6 gm and the RDQ 300 weighs 8 gm. It is longer than the 250 but fits on the boom between the servo and the boom nose. I cut the red and black wires and soldered them together then taped the battery and booster to the boom to locate the charging prongs and canopy opening. After finding the correct position I used Shoe Goo to secure the battery and booster to the boom. I recently got about 20 throws at the park with 10-12 winds and found no change in handling or CG.
Posted by Old_Pilot | Oct 23, 2020 @ 06:00 PM | 4,202 Views
I had a mischief of a time unfolding the canopy for the Jetstream......I finally modeled the thing using 3D faces and unfolded each face using point-to-point projection.....I test cut the canopy out of heavy card stock, just to make sure
Posted by jmxp69 | Oct 23, 2020 @ 05:50 PM | 4,115 Views
The maiden was a little hairy. I slowed it down a little, reduced the FC gain, and tuned the radio. Very different flight the 2nd time:

ZOHD Dart 250g FPV Version • 3s Battery with 3 Blade Prop • Gain and Rates Info (17 min 29 sec)

Posted by MsWinchdoc | Oct 23, 2020 @ 04:59 PM | 3,925 Views
Our beloved RGB has died and Trump wants to replace her before the election. Trump picks his A-lister choice – the GOP wants to rush it through, the Dem’s fight it but it gets pushed thru the confirmation hearings, in this dream, the choice refuses the post. Time runs out, the horn blows and it’s too late game over. The next President picks the judges. RIP RBG

In another dream
New game show idea called “WHO WANTS TO BE AMERICA’S NEXT PRESIDENT?” Hosted by Alex Trebec with game show podiums, buzzers and insta-fact checking with automated scores revealing points deducted for each false fact or lie.
Final Round is called the ‘dunk tank round’. Contestants sit above a water tank filled from our very own Flint, Michigan and once the point level goes negative, so splashes the liar.

Episode 4 an homage to Dr. Strangelove (all black and white) “Gentlemen you can’t fight in here, this is the war room
Or “Nightmare on Pennsylvania Avenue” where we return to the Dunk tank and the contestants have both been exposed to the waters of Flint. And in keeping with DJT’s previous and unseemly association with the Miss America pageant – Trump and Biden have to do a swim suit competition.

Plus the snarkiest of Republicans and Democrats make up a panel of 3 each to provide commentary on the competition. It will not be pretty, well some of them are pretty, the others are pretty awful.
Mitch McConnell VS Alexandria Ocasio-Cortez
Lindsay Graham VS Nancy Pelosi
Rush Limbaugh VS Rachel Maddow

Before all this happens Trumpy is asleep and dreaming he shows up for the debate and he’s greeted like at a Trump rally. The scene looks like it’s staked and pitched in his favor. He has the best answers Man, Woman, Television….

So he wins the debate 100 to Zero. Then he wakes up and goes to the game show. At that point the nightmare begins
Evil laughter…bwwhahhh-ha-ha-ha
Posted by critterick | Oct 23, 2020 @ 09:09 AM | 4,975 Views
hello I have a arriss 280x long range Explorer with a taranas qx7 problem im having is i had the r9mm-0ta bound and i soldiered the signal wire back on and turned it on and both the red and green light stay on and solid it won't flash or bind its like its stuck i dont kniw can any one help me
Posted by RC Roundtable | Oct 23, 2020 @ 06:45 AM | 5,251 Views
Episode 118: "Chickenhawk" is now live!

In this episode, the gang talks with prolific RC writer, and full-scale helicopter pilot, Greg Gimlick. They chat about:
-Spektrum NX radios (1:45)
-Greg's genesis (22:08)
-REAL choppers (45:22)
-Greg's projects (56:25)
-Fitz's Build-n-Fly event report (1:00:45)
-Shock Cub update (1:17:00)
-Fall SMALL (1:26:20)

You can visit our website at 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 a line here, on twitter, or via email: [email protected].

You can visit our website at 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].