Original sentence: The Norwegian polar explorer Roald Amundsen used two Dornier seaplanes in his unsuccessful attempt to reach the North Pole in 1925
Edited sentence: Amundsen and his crew worked for over three weeks to clean up an airstrip to take off from ice.In a remarkable feat, Riiser-Larsen took off, and they barely became airborne over the cracking ice.In the end, six crew members were packed into the N-25.One of the aircraft, the N-24 was damaged.The Norwegian polar explorer Roald Amundsen accompanied by Lincoln Ellsworth, pilot Hjalmar Riiser-Larsen, and three other team members used two Dornier seaplanes in his unsuccessful attempt to reach the North Pole in 1925.The planes landed a few miles apart without radio contact, yet the crews managed to reunite.They returned triumphant when everyone thought they had been lost forever.They shoveled 600 tons of ice while consuming only one pound (400 g) of daily food rations