[:-]Hi guys, I have a few questions that I've come up with and I hope you can help answer them:

1) What does an in flight needle valve mixture control do and should I use one on my DF?

2) What is the best method to make scale panel lines on a fiberglass fuse?

3) What tuned pipe have you guys had the best success with using a O.S.91, and Dynamax fan?

Thanx. I appreciate the input.[8D]

The answer to the first is exactly what the name implies. It is a needle valve that you can adjust in flight to control the high speed mixture. This is helpful for a lot of people who want to lean the engine just a little on take off for a little extra power, then richen back up once they climb out. Or, if you take off and find the engine is a little rich, or lean, you can correct it from the transmitter. Yes, it's quite a benefit if you have the room for the extra servo and an unused proportional channel on your TX.

John

One method for the scale panel lines is to first paint (or prime) the entire fuse with a gray or black paint (or primer). Then, using 1/16 inch wide tape, apply this tape wherever you want the panel lines to be. Then, paint over the entire fuse with your final color. When you later remove the 1/16 inch tape, the initial gray/black paint/primer will be visible as a panel line. Time consuming ...... but looks great.

Bob

Are there any other better methods for making the line? Without an airbrush? The primer idea would work, but it seems lik it would leave ridges and my take chips of the paint along with it.[X(]

Flyboy

inflight needle is not mandatory. if you use one the BVM is probably the easiest to use.

pencil lines make good panel lines, be careful until you can clear coat over them. use a mechanical pencil at a fine point and softer lead. you can use fine line nib pens, but I find the black lines not subtle enough for panel lines.

get either the bvm or jmp system 2 tuned pipe. you can probably find them used for < $80.