Sceadu Building and Assembly Tips Step 2 - Fuel Tank assembly We shortened the inside fuel line from 110mm to 94mm Step 8 - Main gear installation To tighten up the included slipper clutch, add one or two more 12x18x0.2 FW. You can also add a 12x18x0.5T Step 10 - Wash out assembly If maximizing the output of the washout control arms, replace the standard 5mm ball with an EX 5mm recessed ball on the tip of each arm. Part number is 2525002. The tips of the screws can hit the inner portion of the radius link connected to the arm. Step 11 - Blade Holder Assembly Use a 3mm bolt to pre-thread the pitch lever arms for the pivot bolt installation. Step 14 -Stabilizer Control Arm Assembly Be sure to bend the stabilizer control arms as illustrated in the addendum sheet. This is to prevent interference of the tail end of the ball link against the mixing arm at extreme pitch positions. Step 15 - Stabilizer blade assembly Distance A and B are 161mm with the same amount of material protruding from the center of head. For a smooth balance of aerobatics and hovering flight styles, try removing the brass weight from the paddles. Only the lead weight will be left. For a wild ride, take all the weights out. Step 16 - Rotor Head, washout, and swashplate installation FIGURE 1 When setting up the position of the Radius and Slide block components, the arm as shown in the drawing is not flat in real life. The reference point is the bottom of the pins to the bottom of the slide block. This is the important setting to prevent bindage. Step 30 - Servo installation Be sure to install the brass eyelets in the grommets on all servos EXCEPT the collective servo. Use only the rubber pieces (Futaba grommets work the best!) with the aluminum plates attached to the top of the addendum sheet. This will prevent any flutter that may occur during flight and give the sharpest collective response available. Step 42 - Cabin and Canopy installation To hold the rubber cabin grommets to the plastic cabin, use glues such as PFM, ZAP A Dap A Goo, Polyzap etc. Thin ca will work for a while but can break lose quickly. Add a drop of silicone oil to the inside of the grommet for lubrication on the Body mount post. After a few flights the grommet will expand and removal of the Cabin will be easier. For a different mounting system, see the Sceadu Optional Parts list for a list of numbers. In General: When setting up the .50 size Sceaedu, do not let the quiet running of the heli fool you. With the new gear ratio, a normal sounding 1750 head speed usually turns into 2000 rpm and the heli likes it! Any rotor head speed over 2000 rpm is asking for trouble. Lower your throttle curve points accordingly to keep the rpm’s in line. Ask a buddy for help with taching the heli in flight or check back here soon for our initial radio settings for the stock 570mm blades. (unfortunately I did not write them down before trying another set of blades) Sceadu .50 Machine 1 Right now I am using a pitch curve of 11, -7, 0, +7, +11. My throttle curve is 100, 70, 52, 70, 100. Engine used is OS 50 SX-H Muffler: Sceadu Stock Radio: Futaba, 9204 servos, and GY 601 Gyro. I am using 600mm narrow chord V-Blades and will be switching to 600 wide and 620 normal chord VBlades. If your radio is equipped with a cyclic to throttle mix, turn it on and set it for a minimum of 80% depending on how much cyclic travel you are using. I set my machines up for a starting point of 5 degrees cyclic throw ATV's are set initially for 100% with the pivot balls adjusted on each servo to make the travels correct mechanically. Exponential settings are at -40% on aileron and elevator in hover and in low level inverted mode. All out 3D mode is at 20%. Again, soon exact radio percentages will be posted utilizing the stock manual linkage lengths. The stock Blades in each kit work nicely and did not require many changes in the radio. In the .30 size, the wood blades ran on the same curve settings as the 550 Vblades. The 570'ss ran a little lower throttle in the mid and zero pitch points as opposed to the 600mm narrow blades, but aerobatic performance was wild especially in the 2000 rpm range. (That's pushing it ). Needless to say, full top end rpm needed to be tamed down, so I ran the engine a little richer without overdoing it and hurting acceleration. The Sceadu with an OS .50 really benefits from a good set of 600’s! The Vblades really grabbed the OS by the reigns and pulled the Sceadu. If you find rpm control is a little challenging, you can change the clutch bell to a 9tooth setup which shifts gears on the OS .50. I got one good blast with this arrangement and then the engine broke. Something went through the motor, so testing is suspended for a little bit. A replacement has arrived and is being broke in. I have also tried the Enya SS50 with good results. This is in my second test machine. I liked the Enya 50 in my GPH 346 and, in the Sceadu, it seemed to be just as strong but more manageable with the stock blades. Of course pitch curve and throttle curves are a little different. Sceadu test machine 2 Radio: JR 10SX Engine: Enya SS 50 Heli Muffler: Sceadu Stock Servos: 4131's Gyro: GY 401 w/ 9253