Sorry I didn't get back sooner. Ive been on my hols. B73, if you're still reading this, sorry for getting back at all.
In response to B73s reasoning for Robinson adopting FI for the Raven 2, I attach a section of Lycomings article on the choice of carb or FI. Make your own mind up.
Since the fuel injector is more complex and expensive than a carburetor, why should it be considered? Because the fuel injector has its own set of advantages which in some cases are worth the additional cost.
First, the fuel injector causes air and fuel to be mixed at the cylinder intake port. Therefore, the refrigeration type icing that occurs in a carburetor venturi when fuel vaporizes in moist air cannot happen when a fuel injector is used for fuel metering. Many pilots consider this to be a significant advantage.
The primary characteristic of the fuel injector is improved fuel distribution to each cylinder. This feature reduces the possibility of one cylinder operating at a very lean air/fuel mixture while another may be operating near the rich end of the mixture scale. The improved distribution allows leaning that results in slightly lower overall fuel consumption. This is of particular value in the higher horsepower engines where saving a small percentage of the fuel being burned may result in a significant dollar savings.
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Full article at
http://www.lycoming.textron.com/main...lInjector.html
I believe this supports what I wrote in my earlier posts.
Headturner, I have to agree with headsethair about the R22, in that it is well suited to its purpose and is a remarkable piece of engineering. It does have the flaw which led to this thread in the first place but the villain is not Robinson. It is the crappy regulation and certification requirements in this industry which stifles progress. If this wasnt the case then I'm sure you could buy an injected R22 if you choose to live in wet Lancashire.
Danger, opinion coming up.
I think that the regulatory system actually causes some of the accidents it is meant to prevent.
Finally, as the size of my LZ has been questioned this is another view of my landing site, as taken from where my Enstrom is parked. Rather bigger than a football pitch.
edited for spelling/typing only