Heliorb.com

T-Rex 450 fully equiped for night flights like a real police copter (the world brightest search and navigation lights)
Video Rating: 4 / 5

I’ve looked at various navigation type systems for my helicopters but they are all very expensive. In fact far too big-ticket for what you get. I’m getting dpersonal to make my personal affordable version. This is a flasing cheerless 5mm LED tied in series with a 300 ohm resistor to a stock 9v PP3 battery. The blinking is not as discriminating as the tangible ones but these diodes are about 13p and the resistor about 2p so for 15p (30 cents) you can have a single flasing blue light.
Video Rating: 4 / 5

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