Hirth F23, 50 HP engine?
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yhbobg
Hirth F23, 50 HP engine?
I saw a video (https://www.youtube.com/watch?v=K40AhgZcCRQ) on a Quicksilver MX, legal 103 ultralight using the Hirth F23, 50 HP engine, anyone using it? The thing climbs like a bat out of hell, as they say :) 25-35 ft take off roll :):):)
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johndfletcherca
Re: Hirth F23, 50 HP engine?
A friend of mine in Michigan built an Earthstar Odyssey from a kit from DCC
Corporation. He put a Hirth engine on it. It never performed as it should
and it would only cruise around 75mph if I remember correctly.
I cannot understand why anyone would put a 2 stroke engine in this power
range on an aircraft when the HKS engine is available. A 2 stroke engine
consumes DOUBLE the fuel that a 4 stroke engine consumes. The exhaust stinks
and they polute way more than a 4 stroke engine. They also require more
frequent maintenance and I understand the operating costs are higher. The
only advantage I can think of is they don't require preheat in the winter,
and it can be easier to get cabin heat on some of them.
The only 2 stroke engine I would use is Mark Beierle's Rad-Cam engine but
unfortunately, it never went to production. It is more efficient than a
conventional 4 stroke engine.
Corporation. He put a Hirth engine on it. It never performed as it should
and it would only cruise around 75mph if I remember correctly.
I cannot understand why anyone would put a 2 stroke engine in this power
range on an aircraft when the HKS engine is available. A 2 stroke engine
consumes DOUBLE the fuel that a 4 stroke engine consumes. The exhaust stinks
and they polute way more than a 4 stroke engine. They also require more
frequent maintenance and I understand the operating costs are higher. The
only advantage I can think of is they don't require preheat in the winter,
and it can be easier to get cabin heat on some of them.
The only 2 stroke engine I would use is Mark Beierle's Rad-Cam engine but
unfortunately, it never went to production. It is more efficient than a
conventional 4 stroke engine.