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The old bottle drop mechanism was fairly dodgy so I have re-vamped it.

This is tricker than it looks as the water bottle weighs greater than 500g which is a significant part of the aircrafts weight and mounting such a mass directly over the center of gravity difficult.

I wanted the simplest mechanism possible to hopefully avoid breakdowns so I went for a single lock-pin design see pictures below.

Tagged in: servo , Lock-Pin , Bottle Drop

The plane was successfully flown in manual (RC) mode however the motor blew up approximately 2 minutes into the flight. The following footage (20 seconds) is of the plane gliding in for a smooth landing after motor failure (please excuse the camera shake my little bother was filming).

Tagged in: video , UAV , subsystem , servo , RC , modular , manual , design practices , Borjet , airframe

Hi All,

As this is the first build log post I will describe some of the build and design practices that I will be using. Firstly I will almost always try and use existing commercial available off the shelf (COTS) hardware wherever possible as there are no prizes for "re-inventing the wheel". The lowest replaceable unit (LRU) will be at the subsystem level so that any problems with UAV subsystems can be repaired rapidly through subsystem replacement.

Okay lets get started!

Tagged in: UAV , subsystem , servo , replacement , PPM , Paparazzi , Molex Picoblade , modular , Futaba , encoder , design practices , COTS , competition

Overall outline of this guide:

1.      Hardware configuration overview.

2.      Outline of required components and where to buy them.

Tagged in: TWOG , TINY , servo , RC , Paparazzi , Molex , howto , hardware , guide , flow , Farnell , data