This one will bounce around some. Thses are some things that come to mind I think should be addressed.

If someone what's to be factual I said the Taurus 52 is the powerful engine in the current 50cc class. I don't consider a 58-60cc or more from anyone to be in the 50cc class. For me that class runs from 45 to 55cc. A 58 lands in the 60cc class. That claim is made not just from rpm numbers, but available torque at various rpm as well. My hobby tests are performed with both the tach and in actual flight. As was noted before, what the numbers say is not the true performance of an engine, but what it will do in flight with various propellers and under various conditions.

As for my comment about page counts, when you're sitting in a hotel in the middle east, take a look for the first time in awhile at a forum, and see two threads pertaing to two different makers that hve run up to between 60 and 40 pages, respectively, you might find it amusing that so many have gone on for so long about the same things. If you start reading through them you find that after about the 7th page of ewither one most of what continues is a rehash of what went before. It was funny!




I do not now, nor have I ever, compared a Brillelli against a DL. Scott (Brillelli) makes a very fine engine, and takes damn good care of his customers. At the moment there are only three manufacturers that go to extremes to make their customers happy. You alrady know who they are. Brilllelli, DA, and BME. The rest get to a returned engine when they can.

DL entered the market with a copy of an "American" made engine and after some initial problems managed to overcome the issues inherent with the original. I have a 3W clone here at the house that looks promising, but who knows. 5 years from now we may finally have an answer about the reliability and durability of Chinese offshoots. Until then those that buy them are nothing more than part of a large experiment.

If the cloned engines fail a year or two down the road, how much money was saved in the original low price? Will that "local" manufacturer still be around for you to buy a new engine from or will he have been run out of business by the offshore manufacturers?

Performance is not just about rpm. Those that have taken the time and incurred the expense to experiment with different props for different engines and airframes will accurately tell you that often lower rpm has much higher performance that more rpm. It's also about reliability, longevity, accuracy in tuning, ease of operation, heat dispersion, and other factors that many don't look at. Brillelli engines meet all those requirements. Many other engine types do as well.