Hudson Chalmers has 57 years experience in the Mining, Civil Engineering, Topographical and Photogrammetric fields.

During his career he has been Chief Mine Surveyor, Mine Manager, General Manager Mining and a Consultant Mining Practice in Zimbabwe.

Trained in Photogrammetry with Aircraft Operating Company South Africa, has worked extensively in South Africa, West and East Africa on large Aerial survey and Civil Engineering Projects.

Developed small scale aerial survey systems 15 years ago, utilizing light aircraft and Robby 22 helicopters.