Hi SF,
It's me again... You can use stretched sprue as antenna wire for your Hurri. I used it for mine..check it out here if you like..
Royal Indian AF Hurri It's pretty easy to make antenna wire. Here are the steps:
1. Cut off a 2-3 inch piece of sprue from the trees.
2. Heat above a candle flame, with a gap of at least 1 cm between the flame and sprue.
3. Constantly turn the piece between your fingertips, so as to ensure uniform heating. Also take care to see that the thing doesn't trun black with overheating.
4. After 10 secs of heating(generally
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!), the piece starts to sag at the middle. Now, pull apart gently at both ends, until you have the antenna wire of desired thickness.
5. Drill a small hole on the antenna holder on the plane carefully, using a 0.25 mm drillbit fastened in a pin vise. Pass one end of wire thru this, and the other gets terminated at the tail tip. Voila! Antenna ready!
Tips:
1. Don't pull apart too fast or too slow. If you are too fast, you'll just break the sprue. Too slow, and you'll have a thicker bit of wire, or worse, bumps at different parts on the sprue.
2. Practice makes perfect. You'll get the hang of it after you've stretched about 5-7 pieces(or more
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!)
3. Be careful not to burn your fingertips by going too close to the flame.
4. Try not to inhale the vapours from heating sprue as much as possible!
HTH,
BP(aka Shekar).