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O.S.


Arado 76

Arado 76

By Stan Rutz THE SEPTEMBER 1938 ISSUE of Model Airplane News contained plans for a 20-inch-span, rubber-pow- . ered Arado 76: “… a new German fighter/ trainer.” I built it, and when .049 glow engines emerged a decade later, I turned it into a Wasp-powered U-control and flew it indoors. It was a crowd pleaser—especially […]
The Lyka Jet

The Lyka Jet

by Jack Zimmanck The first time I saw the fast, smooth flight characteristics of a ducted-fan model, I was hooked, but I did not want the temperamental operation and expense that often go with these exciting and graceful birds. I tried a couple of the prop/jet look-alike kits. They looked OK, but the performance and […]
OV-10 Bronco

OV-10 Bronco

An easy-to-fly, giant-scale twin for everyone It’s hard to believe that five years have passed since I designed the OV-10 in its original 52-inch-span version (Model Airplane News plan FSP 11951.) I designed it as a “first twin” for sport-scale fliers who might want to grab some “multi-engine” points without committing to a lifelong project […]
Steve Mosher and his Amazing Canadian Coast Guard Bell 212

Steve Mosher and his Amazing Canadian Coast Guard Bell 212

By Carl Layden Atlantic Canada has several prolific modellers and one such person I have had the privilege of meeting is Steve Mosher of Halifax NS,  Canada.  Steve has been a airplane modeler for most of his life and right from the beginning as he learned about what works and what doesn’t he has been […]
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Small-Block RC Gas Engine Guide — A New Generation of compact Power!

Small-Block RC Gas Engine Guide — A New Generation of compact Power!

Lately, there has been a noticeable shift toward smaller displacement single-cylinder, gasoline engines and there are now many of these little gas-burning powerhouses on the market. Years ago, when you talked about gas engines, the smaller end was owned by the 25cc engines and the average size was roughly between 40cc and 60cc with a few […]
Gas O.S. Engine Revisited

Gas O.S. Engine Revisited

Until now, gas engines have not been designed for RC helicopter use, and have therefore they have been almost impossible to mount in a helicopter. And they have not come with the needed muffler system to extract maximum power, and they produced a lot of vibration because they were unbalanced. The folks at O.S. have […]
Gas Power Tips & Tricks

Gas Power Tips & Tricks

  The new O.S. GT15HZ gas engine is specifically designed for our helicopters to replace a 91 size glow engine. Until now gas engines have not been designed for our use, and have therefore been almost impossible to mount to our helicopters, did not come with the needed muffler system to extract maximum power, and […]
O.S. GT15HZ: New Gas Engine

O.S. GT15HZ: New Gas Engine

Many years ago we tried using Zenoah gas engines in our helicopters, but there were several problems we could not overcome. First, they were not designed to be used in helicopters. Rather, they were designed for some type of commercial operation, such as powering a small blower. This meant they were unbalanced, so they had […]
GF40 Gasoline Engine from O.S. Engines

GF40 Gasoline Engine from O.S. Engines

Ideal for aerobatic or scale aircraft, the 4-stroke GF40 offers excellent torque and a realistic sound, plus fuel economy and the fit and finish O.S. is famous for. Other features include a Walbro carburetor and an integrated choke rod guide that simplifies installation. The GF40 includes a muffler, spark plug, ignition module and a 2-year […]
Detailing the Dirty Birdy

Detailing the Dirty Birdy

Great Planes has been my favorite hobby supplier for decades. OS Engines power my planes, and their ARFs, especially the Top Flite warbirds, are excellent quality and top value.  GP products have served hobbyists well over the years.  When they resurrected Joe Bridi’s Dirty Birdy pattern ship it seemed like a great idea for us […]
Super Constellation: Biggest ARF ever?

Super Constellation: Biggest ARF ever?

It’s a new year; don’t you deserve a new plane? How about a giant-scale airliner ARF that’s guaranteed to wow the crowd? This 4-engine, 169-inch-span plane comes covered in Oracover and has a bolt-on, two-piece wing for easier transport and field setup. Don’t think you can fit the 157-inch-long fuselage in your trailer? No worries: it comes in […]
Propwash Video Productions—The Planes of Top Gun

Propwash Video Productions—The Planes of Top Gun

Held at the Paradise Field by Frank Tiano in Lakeland, FL Top Gun is the greatest RC scale show in the country and it draws builders and pilots from all over the world. The true best of the best compete annually for the title of “Mr. Top Gun.” And in the process, the event plays […]
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