Weight and Balance: Calculating the CG | UK PPL Ground School

Using a Cessna 172R, the lesson explains the datum, arm and moment, then adds up an example load of 2250 lb and 91,175 lb-in to give a centre of gravity 40.5 inches aft of the datum, inside the 38 and 47.3 inch limits at that weight. It then checks the landing case after burning 30 gallons (2070 lb at 39.9 inches) and outlines what happens when the centre of gravity is too far aft or too far forward. Full course, question bank and radio practice: https://ukgroundschool.co.uk/?utm_sou... Sources: CAA SafetySense 09 Weight, Balance and Performance (Aug 2024), CAA Skyway Code (CAP 1535, Nov 2023), Cessna 172R POH (example figures) For training support only; always follow your aircraft's flight manual and current official publications.