about time a descent 4 stroke option was available.HKS/Verner/BMW/Mid-west are crap and don't offer any benefit.I liked this little unit HERE () but alas it went the same route as many others. It replaced the 2706 in the Hirth line in May 2002. Contents Development The 3203 was developed as a replacement for the and as a competitor to the 64 hp (48 kW). however a void in the market will develop for this type of engine as Rotax will be stopping all the 2 stroke series soon, they have already discontinued the 447 and 503 series. Read this operator's manual thoroughly before putting the engine into operation for the first time and comply. The Hirth 27 are a family of in-line twin cylinder, two stroke, carburetted aircraft engines, with optional fuel injection, designed for use on ultralight.

Time will tell, it will be hard to beat the Rotax offerings, they are tried and tested. It is fuel injected, produces a lot of power for it's weight, it is a good bit lighter than the 582 and fuel economy is about 12 LPH. All Hirth engines come complete with carb(s), exhaust manifold(s), electric starter, alternator, rectifier, starter relay, air filter(s), fuel pump, ignition system, manuals, and one year warranty. It has been fitted and now seems OK, about 40 hours on it. Read this operators manual thoroughly before putting the engine into operation for the first time and comply. The Hirth F30 will certainly be the clear choice for light aircraft builders in need of efficient, quiet yet powerful engines. The owner had a warranty with it via Germany and sent it back and they supplied a new version. Flew an X-Air here in Ireland with a 2706 and it was the most problematic thing ever.

Hirth 2706 manual