merlin703's blog - RC Groups
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Posted by merlin703 | Feb 07, 2012 @ 05:30 PM | 3,061 Views
Posted by merlin703 | Nov 28, 2011 @ 05:43 PM | 4,145 Views

2012 Basic - Pilot: Tim Larsson, Sweden

Basic 2012 (3 min 0 sec)

2012 Sportsman - Pilot: Tim Larsson, Sweden

Sportsman-2012 (3 min 9 sec)
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Posted by merlin703 | Nov 21, 2011 @ 12:59 PM | 3,767 Views
Good thread to be used as a refresher

Turnigy 9Ch RX system
Excellent how to and explaination of changes on the new TX/RX
HobbyKing Turnigy FlySky 9x Radio with ER9x Firmware Demonstration
HobbyKing Turnigy FlySky 9x Radio with ER9x Firmware Demonstration (6 min 17 sec)

9x Add-on Board with built-in Programmer and EL Backlight $45 bucks
Will not work with the first generation radio unless soldering so check.
Posted by merlin703 | Oct 25, 2011 @ 10:32 AM | 5,757 Views
3DHS 41" Edge 540 - Orange

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51" AJ Slick - Orange

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F-27Q Stryker
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Posted by merlin703 | Oct 10, 2011 @ 01:30 PM | 4,493 Views
Most Common Types of Foam for RC

Tools to work with Foam
You can use hotwire, sewsaw, hot iron, hobby knife, etc.

One of the best materials is Nickel Chromium (Nichrome)
Hot wire to cut foam
DIY Hot-Wire Power Supply (Vid 1 of 2) (9 min 16 sec)
From Radio Shack...

Enclosure (8"x6"x3", #270-1809)
Transformer (25.2v, 2 amp, #273-1512B)
Bind Post (#274-661)
Banana Plugs (#274-721)

From Lowes...

Lutron Dimmer Switch (#D-600PH-DK)
Nuts and bolts, or rivets for mounting components


An old AC power cord (2 or 3 prong) with appropriate plug

Optional Parts I Recommend (also from Radio Shack)

Fuse Holder (#270-364)
Fuse (250 volt, 2 amp, #270-1023)
120 volt Neon Lamp (#272-0704)
Needed Parts
12 foot 16 guage extension cord
2 wooden yard sticks from Home Depot paint department
4# 10-24 x 1.25" machine screws with nuts
10 # 10 washers
About 12 feet of strong, low-stretch string (i.e. 200 lb dacron kite line)
A single-pole dimmer switch. About $10 bucks at Home Depot
A 25 volt, 2 Amp transformer (2Amps for smaller size projects to up to 26 inches in lengh. More than that, you might need 4Amps). $10.49 at Radio Shack
An electric guitar string. About 0.10 - 0.16 size (guitar wire breaks).
A length of two conductor electrical wire with a regular plug on the end.
A piece of wooden dowel or stiff plastic rod about one foot long.

NiChrome Wire is used for foam cutting requirements from 24" to 53"
Inconel Wire is used for foam cutting requirements from 24" to 108".
Hotwire cutter on sale

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Painting Foam Airplanes
Posted by merlin703 | Oct 05, 2011 @ 04:44 PM | 3,891 Views
1) Drill/cut the holes you need on the body
2) Wash the body to remove any dirt
3) Draw on the ouside the lines/shapes you need to make
4) Use liquid masking tape and apply about 3 layers on the inside and let it dry. You can use a hair blowdryer to help with the drying process.
5) With an exacto knife, cut on the inside to remove the areas that need paint.
6) When using decals, make sure they are firmly apply. You can use a credit card to flatten it. Use a hairblow dryer to make sure the decals are firm.

Recommended paint is Lexan paint (?)

How to paint an RC shell (8 min 28 sec)

Good Techniques to follow
How to paint- stripes and lines (the easy way) (12 min 1 sec)
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Posted by merlin703 | Aug 19, 2011 @ 11:33 AM | 4,338 Views
Some information to troubleshoot the board during set up
Posted by merlin703 | Jul 15, 2011 @ 01:06 PM | 4,343 Views
3M Epoxy Application and Similar
I believe this is a MUST have for people assembing kits and have the need to apply epoxy.
Epoxy gun and everything else.. I bit expensive
Application for $35 bucks the adhesives are a bit more expensive

RC user trapviper also sells it
Originally Posted by Trapviper View Post
I don't know if you guys are interested or not but I offered this once before a while back.

I sell the 3m epoxy setup. And I'll sell it to the RCGroups guys for cost. I'm the general manager for a fastenal location and I keep most of this stuff in stock. Just trying to help some fellow addicts if I can.

Scotch Weld DP100 Clear Epoxy 1.7oz - $10.54 per tube

Gun type applicator made by Loctite - $34.96 each
Almost identical to the scotch weld one and totally interchangable

Scotch Weld 9742 EPX Mixing Nozzle - $0.88 each

Plus 5 or 6 bucks for shipping.

So, 10 nozzles, 2 tubes epoxy, 1 gun, and shipping would run you approx. $70 plus tax. This is just for reference, quantities and products ordered are totally up to you.

Also, I can tell you that I have built 2 planes with this system so far and I've only used 6 nozzles and half of 1 tube of epoxy so far. As long as you remove the nozzle and put the cap back on the epoxy when you aren't using it, it lasts a long time.

Anyone interested can call me at my store.
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Posted by merlin703 | Jun 29, 2011 @ 11:35 AM | 4,660 Views

Video 1 of 11
LED Night Flying How-To Part 1/11 - Types of LEDS and Power Sources (10 min 55 sec)

ESC GWS ICS-50E ESC to be used as a relay

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Retracts Setup
Mechanical Setup
Basic Mechanical Retract Setup (7 min 28 sec)
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Posted by merlin703 | Jun 29, 2011 @ 11:24 AM | 4,585 Views
RC Potcasts
Choosing the right motor:
Originally Posted by SalamSyed View Post
It is the weight of the plane, type of airframe and style of flying which decides what motor will work best. Manufacturers usually suggest a range of motors (weight and watts) good for a particular airframe to balance it easily.

kV of the motor is rpm/volt at no load. Higher the rpm, smaller the prop and less voltage will be required and is meant for ligher and smaller planes. Lower the kV numbers, bigger the prop, with increased number of cells and is meant for bigger and heavy models. Every motor is rated for the amount of amps, watts and number of cells. You can play around with these numbers by choosing a prop to get the maximum out of the motor in a given voltage (battery). Diameter of the prop increases thrust and pitch increases speed.

Some guidelines for watts/lb for the type of plans and style of flying:

50-70 watts per pound; Minimum level of power for decent performance, good for lightly loaded slow flyer and park flyer models
70-90 watts per pound; Trainer and slow flying scale models
90-110 watts per pound; Sport aerobatic and fast flying scale models
110-130 watts per pound; Advanced aerobatic and high-speed models
130-150 watts per pound; Lightly loaded 3D models and ducted fans
150-200+ watts per pound; Unlimited performance 3D models
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NiCd and NiMh batteries
Dual Rate and Expo Theory

Transmitter Dual Rate and Expo Theory, Part 1 of 2 (8 min 28 sec)

Video 1 of 2

Transmitter Dual Rate and Expo Theory, Part 2 of 2 (10 min 46 sec)

Video 2 of 2

Prop Balancing Tutorial
prop balancing video tutorial (5 min 5 sec)

Voltage and Voltage regulator
Voltage regulator tutorial & USB gadget charger circuit (6 min 28 sec)

Posted by merlin703 | Jun 16, 2011 @ 03:40 PM | 4,647 Views
Custom Motor Mounts
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Servo Regulator and Speed Adjustment gizmo from Turnigy
HobbyKing - Turnigy Servo Speed Regulator (5 min 40 sec)