27,500 RPM! Tiny Combustion Engine. I tightened the Piston to the Rod ball & run a Cox Tee Dee .010.

Dieselised Cox 049 (Part I) Using Davis Conversion Head

Cox 049 clean up!

OS FS61 Disassembly and Discussion

First Start of a Cox .049 Black Widow

Cox Engine powered Micro R/C model airplane Quickie 100 Project

2022 07 27 Cox Helicopter with Jim R

Free Flight Nationals 2013 Sport Flying and Scale.

Cox Golden Bee A Look Inside

Setup and test run of vintage OS Engines 15 RC glow engine.

Cox Teedee 0.049 Restoration, Run and Debrief

Twin Cox .049 cylinders equals one .098 Nitro Engine.

L.M. Cox Manufacturing Promotional Film from 1961, Wally Wins his Wings from the archives of MECOA

The best throttle options for cox engines

Micro CAM Racer with Cox TD .010 Test Flights

Supercharged Micro Radial Engine: Making of (New Project coming soon!)

Dieselised Cox 049 (part III) Bee with Muffler

63-летний Кокс, PT-19 UKIE, Бэби Би.049. Мы, летчики-ветераны, начинали так же. А вы?

Световой двигатель Cox 049 Black Widow — запуск и обзор — Модели самолётов

Typhoon in a Thimble - How a Cox reed valve engine works

Vintage Cox PT-19 UKIE Trainer converted to Brushless Motor experiment.