Seduction FS Ono Special (oz16762)

About this Plan

Seduction FS Ono Special. Radio control sport aerobatic model.

Note this is not a plan for a complete airframe. This is a plan showing the detail differences between the Seduction FS (oz15093) and the Seduction FS Ono Special.

The Ono Special used larger control surfaces and had lighter construction.

See Seduction FS (oz15093) for the original plan.

Quote: "Hi, I have the supplement for the Ono Special version of the OK Pilot Seduction Freestyle (oz15093). You could add this to the plans. The first file is just a scan of the supplement and includes the drawings. The second file is a translation I’ve done of the supplement. I hope that’s ok.
Best regards
David Walton"

Quote (translated): "Thank you for purchasing the Seduction ONO-SP. This Seduction ONO-SP is an improved version of the Seduction FS for expert flyers. Therefore, the parts layout is different, and the sheet number and part number do not match. Before disassembling the parts, please number them according to this parts list and part drawing.

Improvements:

The width of the aileron is expanded from 40mm to 60mm (the main wing area is the same), and the material is changed from Balsa block to 1.5mm Balsa plank. Y-1 is the main trailing edge and Y-2 is the aileron leading edge. After planking with 1.5mm Balsa, separate between Y-1 and Y-2, and attach triangular material to finish it. The angle of operation of the aileron is about 45 degrees.

All plywood except for the firewall, tank compartment bottom and center rib is changed to 2.5mm thick Ultra Light Balsa Ply. This results in a weight reduction of approximately 100g, but at the expense of strength.

The wing fastening has been changed from two screws to three screws. This is to increase the rigidity of the assembled fuselage. After gluing H-10 to the notch in the main center rib, drill a 3mm vertical hole. Insert the dowel pin into the frame and secure it to the tank compartment bottom plate with a 3x20mm screw and a 3mm lug nut.

The mounting positions of the main wing and horizontal stabilizer have been moved up 10mm each to improve the roll axis alignment and enhance stability during forward Cobra maneuvers. This has resulted in changes to the size of the belly pan and the mounting positions of the elevator and rudder servos.

The colour of the canopy, wing caps, and main gear has been changed to blue.

Setting (Yoichiro Ono):

It is basically the same as FS.
It is important that the wings move smoothly at 45 degrees. Linkage is also direct
Therefore, I think you can secure large corners without any stiffness. Please set the centre of gravity as specified, 190mm from the rear edge of Aileron. I set the Transmitter as follows.

Set in Futaba1024ZA flight condition.
1. Normal (from stunt to normal aerobatic flight)
2. Kick-up (torque roll, hovering, free fall & cobra, etc.)
3. Elevator flap MIX (flat spin & water fall, etc.)
Then use PMIX to correct knife edge.

1. The normal settings is about 25 degrees for the elevator and aileron (depending on preference) and 45 degrees for the rudder, but due to side thrust, the lift differs depending on the left and right knifing-edging. I set the rudder angles on each side so the same amount of stick movement on both sides results in the same lift. This makes slow rolls and four-point rolls easier, and it’s a setting I came up with after much thought.

2. For kick-up, the elevator, aileron and rudder are set at extreme 45 degrees in all directions. With these settings, small rudder inputs may be too sensitive during torque rolls, potentially causing the aircraft to lose control. Ideally, I'd like to set the elevator at around 30 degrees for torque rolls, but a Cobra requires a 45-degree rudder angle, and it's difficult to switch controls during combination maneuvers like a Panic-Cobra torque roll, so I reluctantly keep the elevator ultra-sensitive at 45 degrees, even for torque rolls. I decide which switch to prioritize within the overall flow of the performance, so I think it depends on what you want to emphasize (or show).

3. It is rarely used, but is necessary for performing extremely tight waterfalls, with the elevator set to 45 degrees down and both ailerons set to 30 degrees up.

Now that the radio settings are complete, a 45-degree rudder angle will likely feel too sensitive and difficult to control until you get used to it. However, in maneuvers like freefalls, insufficient rudder angle will prevent a full stall. For acrobatics, you need to get used to larger rudder angles and practice making small movements. It's also a good idea to use a generous amount of expo at first..."

Direct submission to Outerzone.

Supplementary file notes

Instructions.
Instructions (en).

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