Articles in Engine tests
Nitro Engine Tests

Yes, today the vast majority of us fly the pattern planes powered electrically. This is not only practical, but many of the old structures unfold electrically modernized their real potential. Nevertheless, the development of contemporary …
OPS 60 Super SPA

2-stroke engine with front carburator and rear exhaust
The perfect powerplant for your Arrow!
OPS 60 Super SPA, the long time perfect powerplant for 60 sizes aerobatic planes. With side exhaust and front carburator.
Specifications:
Displacement: 9,9 ccm
Bore: 23,85 …
ROSSI 60

Test Rossi .60
First Impression of the new Rossi 60 10 c.c. speed unit is of a really powerful and tough engine. Although resemblance to the McCoy 60 is striking, the Rossi has the appearance, and …
Test Super-Tigre ST 60

However, as is often the case with Super-Tigres, a number of design changes followed within a relatively short time and our present Engine Review is actually the third at-tempt to get a full report into …
Webra Speed .61

In all, there are now six different Webra 61 R/C engines. Two of them, the Blackhead 61 and Blackhead 61 Marine water-cooled unit, are products of the original Webra factory in Berlin.