CMC Articles and Information

Articles and information from our team at CMC Hobbies.

Some of this info is from ourselves directly, some info is from other experienced modellers, and shared here for the benefit of all.

    IMAC ( Large Scale Aerobatics Calender) for 2020 - click here to download pdf  

Falcon Prop selection chart for gas engines

Piston seizures and reading piston wash - by CMC Hobbies

Tech Aero IBEC Manual - High Voltage units

GP 38cc Engine Dimensions

GP 61cc Engine Manual

GP 61cc Engine Dimensions

GP 61cc Drilling template

GP 88cc Engine Manual

GP 88cc Drilling template

GP 123cc Engine Manual

GP 123cc Engine Dimensions

GP 123cc Drilling Template

GP 176cc Engine Manual

GP 176cc Drilling Template

CMC Hobbies Gas Engine Manual

Throttle servo geometry - how to correctly setup your throttle servo to achieve a linear throttle response on your Walbro carb.

How to replace a spark plug cap on an RCEXL ignition module -  a step by step guide. (2,5Mb with photos)

Gas Engine cooling - a very well documented article by one of the best in the industry on gas engine cooling

Oil - More oil is less, less oil is more, more is more, less is less - by gordon jennings.

The 2 stroke Tuners Handbook - again Gordon Jennings, the 2 stroke Guru!

Correct rudder Servo Geometry - Pull-pull setups

Batteries - Deep Cycle / AGM and Lead acid batteries explained

Deep cycle and Marine battery Guide

other Links to useful information and videos from CMC Hobbies

How to remove a prop hub - kind permission from Fergus Lin of GP engines -

A very simple method to set your timing on a Gas Engine setup - Clive McInnes from CMC Hobbies -

Part 1 - How to remove a crank from a Gas Engine - Clive McInnes CMC Hobbies -

Part 2 - The correct way to Re-insert a crank of a Gas Engine - Clive McInnes CMC Hobbies -

Carburettor kit reference guide - look up the correct carb kit for your Walbro Carb BUT please note the list is a bit old and the K10-WJ carb kit now supercedes the older K13-WJ reference ( used on our 80cc to 123cc engines)  -

Setting up your rudder horn right every time!! -

A tool for fitting elevator servos in deep stabs -

as time permits we will continue to add to this list from our database of info we have collected over the years.