When most people with experiance are looking for a simple yet reliable
gas powered engine suitable for most 1.20 sized planes 10-15lbs, they
think of Zenoah. They hav been around for a long time in this hobby and
have pioneered the Gas Engine power plant for some time. My
favorate is the simple magneto type. You get a little more power out of
an ignition type but I really like the simplicity of the Magneto.
The G26 is not the oldest engine but one that has become more
popular for both the economics of gas use but also the simplicity of
getting a nice scale sound without the need for a 4 stroke Nitro. The
G26 installs well. I put it into a Balsa USA 1/4 Scale Nieuport 17 as
part of a 1/4 Scale WWI Biplane project. The vibrations were
minimal and the G26 does not need any sort of complicated long break
in. Since the Nieuport is a scale Biplane, there is not a huge
demand for throttle response from the G26, although I"ve seen it put
into sport planes with as much reliability out of it as any nitro
engine would have. There is alot of information out there on G26
setup and history. Most of the activity is at rcuniverse.com
People are even putting these into Gas Helicopters, and there is a HELI VERSION G26 available as well.