The Airbus A310-300 is almost similar A310-200, but adds extra range with its increased MTOW. This enables the plane to carry extra fuel without sacrificing passengers, thus improving the range. There is an -300 variant that can change between cargo and passengers by removing the seating. A fuel distribution system controlled by a computer moves fuel to change the plane's center of gravity. A310 on Wikipedia Manufacturer's site
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File:PacificFlier Airbus A310-300 Heisterkamp.jpg - Wikimedia Commons
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A310 Airbus
Airbus A310 - Wikipedia
File:SATA International Airbus A310-300 Verkuringen.jpg - Wikipedia
Airbus A380 - Wikiwand
Can the Airbus A310 fly for long distances? And if so, why don't airliners use that, instead of bigger and more expensive planes, such as the B767 or A330? - Quora
Airbus A310 - Wikipedia
Top 10 Most-Produced Commercial Aircraft Types
Why is this A380 flying like this and then landing back at the same airport? : r/aviation