Twin rotor CH-47 Chinook helicopter creates an extraordinary amount of down wash as it descends over the trees on final approach for landing. This aircraft is operated by Columbia helicopters and is used primarily for fighting forest fires. With a large water tank housed inside the fuselage, it hovers over lakes and ponds to take on fresh water and once positioned over areas of fire it opens a set of trap doors to release the water.

Twin rotor CH-47 Chinook helicopter creates an extraordinary amount of down wash as it descends over the trees on final approach for landing. This aircraft is operated by Columbia helicopters and is used primarily for fighting forest fires. With a large water tank housed inside the fuselage, it hovers over lakes and ponds to take on fresh water and once positioned over areas of fire it opens a set of trap doors to release the water.