Rotax

[Eric Page]

I'm not aware of any Kitfoxes flying with the EP915ECi. Most Kitfox builders who use an Edge engine buy the EP912STi.

The Edge Performance website doesn't appear to offer engine manual downloads, but you can ask them about the EP915ECi via their contact form.

[VictorV]

The stock 915is has 2 generators. One for the engine and the other for the "rest of the plane". If one fails, the engine automatically switches over to the still-good generator
and disconnects from the "rest of the plane". If that generator fails you then can run from your main battery. The 915/912 engines need 8 amps to run everything including
fuel pumps. So you'd use 4ah for 30 minutes of flight. The ETX-900 battery is 16ah so you could still run for a few hours on the main battery alone depending on how much load
you can shed. The chances of 2 generators and a battery all failing at once is incredibly unlikely to happen. You probably have a higher chance of being taken out by a meteor.

My question is do you really need that much redundancy? If you want to fly even longer you can use an ETX-1200 battery
with a 24ah capacity which only weighs another couple of pounds. Cheaper and lighter than a backup alternator. With that
you could stay in the air for maybe 4 hours.

If you need more than 30 minutes to find a place to land you're probably flying somewhere you shouldn't be

Victor