Initial flight testing of the Frenzy 90 was delayed because of my attending IRCHA, obtaining some support equipment and bad weather here in Florida. However, I was able to get out to the flying field yesterday for some initial flights, and I’m very impressed.
I used RotorRage 30% Master’s Blend fuel in the OS 90 HZ-R engine, and it started with just a few turns of the starter. Initial needle settings recommended in the OS instruction manual proved to be right on, and the engine idled nicely and ran with a rich two-cycle in flight. I’ll run it slightly rich, with a head temp no higher than 175 degrees, for a few flights to break in the ring.
Initial setup parameters on collective pitch and cyclic throws seem to be fine for now, but it will take a little getting used this big helicopter. I’m used to flying the 50 size machines, and this seems like going from a bicycle to a motorcycle, with so much more power in the OS engine and the larger disk area. However, it does have a great presence in flight, as you can see from the photo, and maneuvers very quickly to my slightest command. Give me a few more days of good weather and I’ll be able to report on it’s full aerobatic capabilities.