Miniature Aircraft's

FURY EXTREME

JULY 14, 2002

After getting the side frames mated together in the previous step, the bellcranks are installed and the carbon side plates for the 8.18/1 gearset. Next on the my list was to install the clutch.starter shaft assembly. I am so glad Minature ships the clutch assembly ready to drop in. Even the liner was glued in place!

The photo below shows the clutch assembly in place between the frames. I slid the whole unit in place with a little wiggling, it just fits. You can see the cutout in the frame where the bearing block is above the pinion gear. There is a small rectangle G 10 sheet that fits over the bearing block and fills in the gap, I guess MA designed it this way for easy removal of the clutch assembly without having to split the frames.

The photo above also shows the delrin uni-ball clutch coupler BELOW a bearing block and the actual clutch and clutch bell above the bearing block. It is a huge bearing in a metal block and should withstand all the power of the big block motors like the YS80 and the OS91. The gearmesh is basically pre-set between the clutch pinion and the main gear.

The carbon support plate is an ingenious design. It allows MA to design a basic frame and use different plates to auto-adjust the gear mesh. The more I get into this kit the more quality I see!

Here are the parts needed to install the motor. You see the motor mounts and motor shims on the left side. The motor mount comes in three pieces. I was a little concerned about it at first but after reviewing the assembly instructions and looking at it a bit closer, I'm sure this is just some more of MA's quality shining through. All the motor mount pieces are well machined and have large holes drilled in places to keep things light yet strong.

The center bag has the bolts to mount the engine and motor mounts and includes the shim tool to set the engine/clutch position properly. I really like this idea as it totally removes the guesswork.

The bag on the right has all the collets and washers needed for an OS-91 and the rubber dampners for the uniball.

 

Here's the big bad OS91 SX-H. I hope my starter is powerful enough to turn this thing over! I have a new Hatori SB-15 muffler to go along with it, I'll get some pics on it next time around. 

The assembly sequence is out of order once again. I should have installed the metal fan on the motor by now but I don't have my governor yet and I decided today to go ahead and paint the bottom of the fan flat black except for a 3/8" stripe of bare metal. I will use an optical sensor instead of the magnetic hall sensor that ships with the GV-1. I already have the unit built and tested on my Raptor 46. I sold it and got a Raptor 70 to replace it. It came with a Quick UK metal fan that already had the magnet holes milled into the fan so I went magnetic just because in that case it was the simplist way to do it.

 
More to come soon!

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