Forgot about the RF-5, that could fit the bill. I guess I used reliability wrong, the point is to stay in the air to get to where you need to go. The odds of having two engine failures are pretty unlikely.Well...then you need a Fournier RF-5. What two-stroke engines did you have in mind? Much more expensive than the Vittorazi and a single four-stroke engine becomes cheaper than two two-strokes.
A twin does not increase reliability, it doubles the likelihood of an engine failure. The safety benefit of a twin comes from the ability to keep flying and ideally still climb on one engine. Without folding or feathering props, that can be a real challenge.
Yep, that's where I come from having had and still own 2 strokes. Just don't have problems. So for me it kind of makes sense but it's not for everyone.One or two two strokes really doesn’t matter. It’s all about care, and two strokes are a little more finicky, so you have to adapt yourself to what you got.
I deal with an Aircam with two 912s and it finicky with the four strokes. I have only seen two stroke AirCams never dealt with them, but if one fell in my lap I would be fine; give me a choice and I’m picking the four stroke.
LOL This is a little bit where I was headed with one of the 2 designs in my head. BD5 meets Rohr 2-175 but probably without the ducted fans. My thought was to make the stabilizer do double duty as engine pylons. Think A-4 with engines at the outboard ends of the stabilizer. The fuselage could narrow down quite a bit and the vertical stab just becomes an extension of the fuse so it can be made plenty strong.I had toyed with the idea of two 582's running direct drive to ducted fans at the back of a modified BD-5 body with a delta wing
THAT's the one I was trying to think of...Powers-Bashforth Minimaster push pull twin had similiar appearence.
Oddly, the ideal behind my twin ducted fan is that, here in Australia, we have a multi tiered ultralight system, and all but our 103 equivalent are bordeline FAR23 and LSA design limited.LOL This is a little bit where I was headed with one of the 2 designs in my head. BD5 meets Rohr 2-175 but probably without the ducted fans.
=====================I am curious what the responses would be if a new cheaper design came out utilizing small twin 2 strokes....yea or nay?