Miniature Aircraft's
FURY EXTREME
JULY 12, 2002
Here's the beginning of the new Minature AirCraft Fury Extreme project. This heli is going to have an OS-91SXH Helicopter engine in it with 8.18/1 gear ratio. I am going to use a Hatori SB15 two piece 90 size pipe. I plan to use Rotosport 700mm White Carbon Blades and some 105mm tail blades.
I will use S9252 digital servos on the CCPM and a 401/9253 for the tail and probably a 3001 std. servo on the throttle, maybe a 9202 if I still have that spare one. I also plan on putting a GV-1 Governor to keep the headspeed in check. I decided to go with the cheaper 700mm blades at first and see how it flies, I'm sure it will be very responsive and will still auto quite well. I doubt I will be able to bogg down this setup once dialed in. It will take me a while to get this thing build as I am adding (buying) radio gear, engine, gyro, blades, pipe, etc.
Here's the first assembly, the head. Everything you need is in a sealed bag labeled "1-A" My head was partially assembled as shown in the photo above.
Above is Bag 1-B, note the first C-Clip installed on the feathering spindle. You really need a set of snap ring pliers to do this properly. They're cheap and usually come with several type tips. I used my small straight tips and it slipped right on, just be careful not to stretch it too far when installing the clip.
Bag 1-C contains the spindle, O-Rings bearings, etc. for the head. The other bags contain various shims and the main thrust bearings. These suckers are big, the thrust bearing measures 16mm across. Looks to be very good bearings.
Here's the Pro 2K head with one grip side finished, note the right side is bare, I had just pressed the C-Clips down with the aid of the tool laying beside the head. It's a small aluminum tube that you slip over the spindle and stand the head on the grip and tap it down compressing the O-Rings until the C-Clips seats in the groove. You can easily tell when it's in by observing the gap in the O-Ring, it pretty wide at first, when it goes into the groove the space shrinks about 50% smaller and you can clearly see the difference.
Here are the main blade grips, the left one shows the radial bearings in place while the grip on the right doesn't have them installed yet.
You need a 10mm socket or similar socket that is around 15-16mm O.D. You push the bearing in as far as you can then put the spacer shown in the photo on top of the bearing to protect the bearing, you tap it down until it seats in the grip.
More to come soon!
