ORIGINAL: chemie
A few questions after inspecting the included hardware with the Sig 4*-40 ARF:
1. Throttle control is with a 3.2mm nylon rod. Is this OK or should it be replaced with rod or wire? Note I will use [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD929]Dubro[/link] E/Z connector on the servo end.
2. I am replacing the clevis supplied with [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXWH36]Dubro[/link] Safety Lock Kwik links at the control horn end. My question is should I use the supplied clevis on the servo end or something else? See photo for what is supplied.
The rudder and elevator have 3.2mm nylon control rods...I will give these a try before replacing.
Finally, does anyone have a photo or measurements for the aileron servo tray? It is supposed to have a doubler on one end but this one did not come with one. I have some 1/8" ply I can cut but I am not sure how much should be doubled.
Thanks.
The cost of some sullivan or dubro metal clevises will give you a lot of piece of mind. I don't like the plastic ones. The down side to the metal ones though are that the rods usually supplied are not #2 or #4, but metric sizes. You may need to replace them also.
On the throttle, I am a big fan of the cable linkage. The flexable nylon is second choice. Steel rod or wire only works well if you have a straight shot from the servo to the throttle. Otherwise you get binding and/or a lot of bends that have to be made after the rod is installed. With the cable, you can easilly route it around the fuel tank and to the engine without any binding.
Don
PS, Does the 4*40 use a single servo with torque rods or dual in the wing servos. I've only built the 4*60's.