Along with the nineteen pilot astronauts of NASA Astronaut Group 5, the group commenced astronaut training. Training was conducted on Monday to Wednesday, with Thursday and Friday for field trips. They were given classroom instruction in astronomy (154 hours), aerodynamics (8 hours), rocket propulsion (8 hours), communications (10 hours), space medicine (17 hours), meteorology (4 hours), upper atmospheric physics (12 hours), navigation (34 hours), orbital mechanics (23 hours), computers (8 hours) and geology (112 hours). The training in geology included field trips to the Grand Canyon and the Meteor Crater in Arizona, Philmont Scout Ranch in New Mexico, Horse Lava Tube System in Bend, Oregon, and the ash flow in the Marathon Uplift in Texas, and other locations, including Alaska and Hawaii. There was also jungle survival training for the scientists in Panama, and desert survival training around Reno, Nevada. Water survival training was conducted at Naval Air Station Pensacola using the Dilbert Dunker. Some 30 hours of briefings were conducted on the Apollo spacecraft, and twelve on the lunar module.