Simple Lost model locator - RC Groups
Shop our Airplanes Products Drone Products Sales
Thread Tools
Sep 17, 2008, 05:29 PM
Engineer for Christ
IBCrazy's Avatar

Simple Lost model locator

Since Tom asked about a model locator I decided to put one up here. This is an optical type of locator. It can run for 40+ hours on 2 AAA batteries. At night super bright LEDs are easy to spot, so you'll have plenty of time to find the plane. The Super bright LEDs can be seen for nearly a mile from up in a tree.

There are two types a diode driver and transistor driver. The transistor type puts out a little bit more light, but has a few more connections. Both are really easy and can be made in under and hour. This circuit will NOT WORK WITH WHITE OR BLUE LEDs unless you add a third cell to your back up battery (White and blue require 3.2 Volts to run).

The LEDS will be illuminated at all times (so long as the switch is closed). That way if the plane goes down and the battery is still connected, the unit will draw power from the airplane battery. If the battery becomes disconnected, the system will be powered from an external power supply such as 2 AAAs or 2 2/3A cells. These batteries should be secured in the plane so they don't eject in a crash.

I would use at least 3 LEDs in the circuit each shining in a different direction and at least one on the bottom of the plane. You could also use this as a night flying circuit as well. A good intensity to shop for is 3000 mcd+ range. 5000 mcd LEDs are usually easy to find.

PM me (or post) with any questions. All of the material can be bought at Radio Shack, but you're probably better off getting the LEDs from Ebay.

Sign up now
to remove ads between posts
May 21, 2011, 04:35 AM
One with the machine
X--ALIEN--X's Avatar
Alex you should sell these in your store.

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Lost-model-locator simplified? Barry2 Beginner Training Area (Aircraft-Electric) 10 May 30, 2007 12:21 AM
Discussion Lost model locator leccyflyer Electric Plane Talk 10 Nov 24, 2006 01:14 PM
"simple" lost model alarm...? PrivateJohnsen Slope 10 Jun 09, 2005 06:50 PM
Lost plane Locator Patrick Plawner Electric Plane Talk 8 May 07, 2002 08:11 PM
Lost plane locator rkrishnan Power Systems 5 Nov 26, 2001 01:52 AM