User's Manual Part 1

Flight Mode

GDU Byrd Premium 2.0 supports the following three modes˖

1. P-Mode˄Positioning Mode˅

When the GPS signal is good, the GPS module is used to maintain the aircraft’s position;

When the GPS signal is not so good or is lost, it will turn to the visual and acoustic positioning

(Advanced Version and Premium Version ONLY);

When both GPS positioning and the visual and acoustic positioning do not work, only the attitude

stabilization is provided.

2. F-Mode˄Course Lock Mode˅

In this mode, forward control of the aircraft is related to the direction the pilot is facing and is not

dependent upon the direction of the nose of the aircraft. Forward is forward even if the nose of the

aircraft is pointing backward. This allows new pilots to enjoy flying while learning to control the

orientation of the aircraft. This mode relies on GPS data, so please use it when GPS signal is good.

3. A-Mode˄Attitude Mode˅

GPS positioning and the visual and acoustic positioning are not used and only the attitude

stabilization is provided. This is a manual mode and should only be used by experienced pilots.

Ȥ To change flight modes, please use the FLIGHT MODE switch on the remote control.

RTH Mode

GDU Byrd has the function of returning to home automatically. If the home point is recorded

successfully before the flight, then the aircraft will return to home point and land automatically

when connection between the remote and the aircraft is lost. The following three conditions can

cause this to happen: return to home is activated on remote control, when aircraft reaches low

battery and when the aircraft loses contact with the remote control.

1. Home Point

Home point refers to the point at which the aircraft has been unlocked for the first time

successfully and in Mode P AND the GPS signal is good. Home point will only be logged if

starting off in MODE P. IT WILL NOT WORK IF FLIGHT IS STARTED IN OTHER MODES.

2. RTH Mechanism

When this mechanism is started, the red LED indicator light at the head of the aircraft keep on and

the blue light at the end is on. At this time, the aircraft will rise or descend to the pre-set height (if

the current height is lower than the pre-set height, the aircraft will rise to the pre-set heightǄ If it

is lower, and the aircraft will descend to the pre-set height) and it will fly to the point above the

home point and hover for five seconds before slowly landing.