2023-04-10 - Replacement of VN-300 with NEO M8N

Change Description

Description of Change

The Vn-300 will no longer be placed on the aircraft. GPS2 port will be populated with the (current) NEOM8 GPS which will be placed in the (left) antenna location for the VN-300.

Implementation

Although it is possible to only run with (1) NEO M9N GPS, having (2) redundant GPS systems in two locations allows us to more accurately determine our position and also have a failsafe in the event of a loose wire, electrical failure, or interference inside the electronics compartment.

No mechanical or electrical changes will need to be made. The current harnessing solution is adequate for the neom-8 to be placed elsewhere on the drone, and there already exists cutouts for GPS receivers inside the wings.
This is a wire that will need to be attached and routed when the wings are mounted, but this is the same as the vn-300 coax antenna cables.

Reason for Change

VN-300 harnessing is very expensive and difficult, as well as time consuming. It poses a benefit, but only between the altitudes of around 20m-120m, where centimeter-accurate position is not particularly necessary if landing by pilot command.

Priority

Medium

Impact of Not Responding to Change

Much cost, manpower, etc.

What Groups, People, Sub-teams Need to be Notified?

• Mechanical, Electrical, Controls

Change Impact

Additional Parts/Resources Required and Costs

0 if accepted, ~ 100$ + 6 hours if not.

Impact on deadlines

This will allow deadlines to move forward.

Alternatives and Recommendations

No secondary GPS, buying a harness for VN-300.

Comments

Change Request Sign Off <System Integration>

Status

Accepted / On Hold / Rejected / More info Requested

Comments

Signatures/Name