Posted by Vortrog | Today @ 08:07 PM | 67 Views
INTRODUCTION

In December 2019, I started a journey (LINK) with my first Scale model build which, although ultimately successful (38 flights and counting), I dont feel was really completed as I intended.

On my maiden flight, the model was in pristine condition, and for all intents and purposes was a high C Grade or Low B grade presentation. It didnt stay that way for long, due to a number of experience factors that I lacked when building it the first time.

1. Model was too tail heavy in the build (needed 400g of nose ballast)
2. Engine Exhausted over the wing (Nitro ate the paintwork)
3. Decals painted with Aerosol cans (smudged off)
4. Internal Tailwheel (not effective)
5. Gear troubles (forward rake, poorly notched oleo fixings (would rotate))
6. Small wheels (contribute to nose overs on damp fields)
7. Poorly tuned engine (transition not tuned while hot, Prop too large 14x6)
8. Tip stall tendency (no washout on wing)
9. Reliance on prop to drop speed for landing (no flaps)
10. Elevator Link was external
11. Overly strong build (can drop some weight)

I managed to remedy all the above to get a fun flyer, but at the expense of appearance and somewhat perforamance.

So, I am going back to do it "better" from all I learnt, to build both a good flyer but also a better built and looking model than the first.

GOALS:
- Better Scale appearance (add all blisters)
- Go for an Eastern European Colour Scheme
- Lighter build (target 3.8kg AUW) by
  • dropping Fuse balsa from 3mm to 2mm
  • dropping wing balsa from 2.5mm to 1.5mm

OTHER CHANGES FROM FIRST BUILD:
- Change to Electric Gear (Pneumatics are good but more fiddly)
- Addition of Split Flaps

Well, here we go!
Posted by Redwing RC | Today @ 12:09 PM | 1,922 Views
Check out the new stuff at RedwingRC! Just got more Blue Bird servos and the new SpotOn RC Flywheelz in Black and Silver!
We also received a shipment with Gliders, Boats, Trainers, Balsa Kits, SpotON RC and Miracle items re-stocked. We are still adding some of the new products to the website but feel free to take an early look.
https://www.redwingrc.com/gliders-sailplanes/
https://www.redwingrc.com/Spot-On-Accessories/
https://www.redwingrc.com/Blue-Bird-Servos/
Posted by Bill M - RC | Today @ 09:01 AM | 2,795 Views
Hi fellow rc pilots & rc enthusiasts

SJRC F11 4K Pro review. In this SJRC F11 4K Pro review, I test the IOS & Android App, Waypoint Navigation (route rules), Circle POI mode, Headless mode, Speed modes, Gesture photography, Image follow & GPS follow modes.

SJRC F11 4K Pro review - IOS, Android & Advanced Features & Functions (Part 2) (24 min 53 sec)

Posted by Helen_AGFrc | Today @ 01:56 AM | 4,840 Views
Hello August! I hope you are all doing well in July.

After we released the A80 series helicopter servo, there are also request for the mid size helicopter servo. Here it comes, the Mid Size A35BHL-H & A35BHM-H Helicopter Servo For 450-600 Scale.
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At first, it is fully CNC housing and half-exposed motor design, very good for heat dissipation and well protection.
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Besides the solid construction, the A35BHL-H and A35BHM-H has the long lifespan brushless motor and smooth dual ball bearing, quality-built and reliable performance.

At last, they are also the digital programmable servo. Yeah, you can adjust the parameter that you need.

In general, The A35BHL-H and A35BHM-H are fast response, smooth reaction and reliable performance mid size helicopter servo, and you can not miss it.
...Continue Reading
Posted by GBLynden | Yesterday @ 08:22 PM | 6,581 Views
This E-flite P-51 Mustang 1.5M was flown at Warbirds Over Whatcom and brought to you by RECKEM ROYS RC & GBLynden's RC.

Roys E-flite P-51 Mustang 1.5M BNF Basic RC Warbird With AS3X (11 min 4 sec)

Posted by mechmove | Yesterday @ 05:57 PM | 7,501 Views
Last night after removing the ESC and UBEC that came preinstalled with the Alpha 2M RTF, I installed a tiny feather weight 15 amp ESC from Castle. The size difference! The old ESC and UBEC with wires and connectors weighs in at 36 grams. The Castle Talon weighs in at 3.4 grams without wires. The wires and motor connectors do add weight, but its also a huge improvement in terms of a more spacious canopy. This has allowed me to drop the lead tail weight. I lined the canopy and batteries with Velcro, and can control key CG just by battery movement.

I left for Long Beach in the morning to avoid the turbulent afternoon winds after yesterday's exciting and highly eventful flying session. (Not good). When I arrived, it was calm, somewhat cool, and someone was already flying a full house 3.X meter electric. I talked to this pilot a couple weeks earlier, real nice setup, with telemetry readouts of altitude, battery voltage and Variometer. Technology is reducing pilot workload not having to worry about the obvious things.

Then I assembled my Alpha and went out and launched. This time, I launched with the knowledge that I would learn how to trim my elevator in flight by moving my left thumb over my right, then immediately knowing where the trim control was located. Being in calm air, it was easy to quickly trim for level flight with motor off. But there was a problem that will be discussed later. Anyway, in the days when I was flying a C152/172, it was common to change the trim for...Continue Reading
Posted by Streetburner139 | Yesterday @ 12:52 PM | 8,933 Views
Cermark Edge EP 49" (oldie)
Hi , does anyone know what measurement to start with from the leading edge down the fuselage for the CG.
Don't have a manual.
Help appreciated.
Posted by jkroells | Yesterday @ 12:35 PM | 9,062 Views
Ok, you won't believe this, but maybe you will. I bought this plane back in 2008 and just opened the box. There was no instructions on how to build this plane. I could probably figure it out, but I'd like to have some instructions or plans. Nitro Plane no longer carriers them, of course after 13 years. Does anyone out there have a set of instructions or plans on how to build this plane?

John
Posted by PittSpecial | Yesterday @ 11:24 AM | 9,457 Views
Okay guys!

Got my Hangar9 F-22 Raptor converted to Electric RC airplane model back in the air for two wonderful flights after one year and two months hanging!

Just an amazing Sunday Central Florida morning! Performed the touch test after each flight on the motor and I was able to keep finger on motor rotating can so, it was two good flights without motor getting too hot on 5-cells.

Loose magnet was repaired one year ago and Gorilla Clear Glue operational temp goes up to 180 degrees F. Therefore, after two flights of 7 minutes each with spirited flights, I am declaring a success with repairs on Motor!

Repairs on motor can be seen at:
https://www.rcgroups.com/forums/show...otor-magnet%21

Video post improvements on my H9 F-22 Raptor:
https://www.rcgroups.com/forums/show...or-Improved%21

Amazing model!
Posted by unboxingexp | Yesterday @ 11:14 AM | 9,458 Views
Broke my Gopro, so I needed a new camera for FPV and underwater footage. I think the Go 2 was a good choice!
Insta360 Go2 unboxing + test (2 min 37 sec)

Posted by ptern | Yesterday @ 03:14 AM | 12,163 Views
I am getting my OMP M2 explore FC to have a brain surgery.
The stock FC uses the STM32F303C8 processor which has 64k of FLASH memory, 16k of RAM memory and contains no DSP instructions.
It is now being modified to have the STM32F303CC processor which has 256k of FLASH memory, 48k of RAM memory and contains DSP instructions.

This post was initial posted in the OMP M2 thread but I have decided to keep that thread clean and dedicated to the M2 topic only.
Hence this thread is being created. I'll post the progress as I am moving along together with the result or outcome.

The M2 with new STMF3 processor will be running with the HF3D firmware.

I have mapped the pin out of the stock FC and ported into HF3D. It was successfully compiled with no errors.
Posted by leccyflyer | Yesterday @ 02:51 AM | 12,223 Views
Aircraft Name: Republic P-47 Thunderbolt
Manufacturer/Designer: Parkzone
First Flight: 21/7/21 at Kerloch
Wing Span: 44"
Wing area:
AUW:
Power type - Electric
Motor: Parkzone 15BL outrunner
ESC: E-flite 30amp
Tank/Battery: 3s1p G-Power 2250mah
Propeller: 9.5"x7.5"
Receiver: AR6210
Flight Pack: n/a
Servos: elevator - 2x aileron, rudder
Throws -
Undercarriage - EFLG100 retracts
Accessories: Scale pilot
Covering: Factory-painted foam
Current status: In Service
Posted by leccyflyer | Yesterday @ 02:42 AM | 12,224 Views
Aircraft Name: Chance Vought F4-U1 Corsair
Manufacturer/Designer: Parkzone
First Flight: 27/06/21 at Kerloch
Wing Span: 44"
Wing area:
AUW:
Power type - Electric
Motor: EFlite 480 outrunner
ESC: E-flite 30amp
Tank/Battery: 3s1p G-Power 2250mah
Propeller: 9.5"x7.5"
Receiver: AR620
Flight Pack: n/a
Servos: elevator - 2x aileron, rudder
Throws -
Undercarriage - Eflg120 90 degree rotating retracts
Accessories: Scale pilot
Covering: Factory-painted foam
Current status: In Service
Posted by Jack Crossfire | Jul 31, 2021 @ 03:10 PM | 15,473 Views
Many cracks & deformations have formed. It definitely isn't as robust as coroplast. The lion kingdom began desiring an Ender 5 Plus. That could print the entire panels in 1 piece. Quantitative easing being what it is, the cost of the printer isn't the issue. The issue is the $5 million in real estate to put it in.
Posted by Braddock, VC | Jul 31, 2021 @ 11:31 AM | 16,366 Views
Just a pic I missed from 2 posts ago, showing how I squeezed those laminations tight.
Posted by Reckless_fpv | Jul 31, 2021 @ 11:14 AM | 16,459 Views
Posted by Braddock, VC | Jul 31, 2021 @ 10:43 AM | 16,592 Views
I have to now decide what power plant for this model.
I have 4 potential engines all ic as I have absolutely no interest in electric.
1st is a trusty OS 91Fx two stroke glow, the main problem is weight or lack of it I'd probably end up with about a pound of lead to make it balance and the muffler would stick out like a sore thumb.
2nd is a really old laser 100, at first I thought this might be marginal but the authority with which it pulled my 1/4 scale Cub through loops is very reassuring.
3rd is a nice new OS 120 Ax two stroke, with the 90 degree exhaust adaptor this keeps it neater than the 91 and it is heavy enough and the power is prodigous.
4th, and favourite , is a turnigy 26S gasser this is a cracking engine so smooth and powerful, bit light and also a bit flimsy but it spins an 18x8 well and I have a muffler that actually works on it.
Any advice readers can give would be gratefully received.
Plane comes out at about 11 lbs.
Posted by Braddock, VC | Jul 31, 2021 @ 10:29 AM | 16,710 Views
First attempt at laminating longerons, not a great problem except the wood is 1/4" whilst the carbon strip is 6mm. Not a great deal and I can spackle it.
Posted by PittSpecial | Jul 31, 2021 @ 10:04 AM | 16,908 Views
Well good people, came with something different and not available anymore (discontinued for a number of years). I got this from a friend (David McCullough) a few weeks ago. It is the ElectriFly GEE BEE of 38.5 inch wing span and tips the digital scale at 2lbs.-1 1/4 oz. with the 3-Cell, 1800mAH, 30C, Lithium Polymer battery pack. The Center-Of-Gravity is at 1 - 1/4 inch from the leading edge and you really need to pay attention to this as this model is very sensitive to incorrect C-of-G setups.

This is my first flight of any GEE BEE and read all the reviews as to what for setups, take-offs and landings and memorized with my brain and thumbs! Early this morning I touched UP the model with my Models Acrylic GUARDS RED to those areas that experienced less than perfect landings. It cleaned up very well with this paint.

Took off slowly as per reviews and increased power slowly as well and it tracked very well with little or no rudder correction. It came up on the mains quickly and allowed a sufficient roll-out and carefully pulled back on the UP elevator and it took off without any issues. Once airborne, it performed like it was on rails! Hammer heads, Cuban-8's, and it maintained some Knife Edge flight as well. Inverted flight was natural for this model.
Need to keep it with the 3-Cell, 1800's packs as the 2200's are just too heavy for this model. The 1800's allow for gentle (kiss the ground) landings so, it is a keeper!