Martin Mars Water Bomber:Flying Tanker Tour

Originally, the Martin Mars flying boats were produced for the US Navy and were used as troop and cargo transports among the islands of the Pacific. Firefighting certainly wasn't what the aircraft's manufacturer, Glenn L. Martin had in mind..... however, all four aircraft, the Marianas, Philippine, Hawaii and Caroline Mars were ferried to British Columbia where three were fitted with 7,200 gallon (27,276 litres) water tanks and converted to waterbombers!

Flying Tankers operate on the philosophy of "gallons per hour". Simply stated, this means a direct assault on the fire by dropping the largest possible amount of water or gel in the shortest possible time. This philosophy, combined with the Mars excellent initial attack and outstanding ability for sustained operations are the keys to our success - they are scoopers and, working in tandem, they are able to deliver 14,000 US gallons (54,500 litres) of suppressant for the initial attack and continue delivering as much as 7,200 US gallons (27,276 litres) every seven minutes thereafter in sustained operations if needed.

Today Coulson Flying Tankers is the newest division of Coulson Aircrane Ltd. Coulson's have for many years been operating a fleet of Sikorski S61 heavy lift helicoptors, and have determined that efficiencies gained over the years have "freed up" flying time and are now able to offer Mars services which were largely restricted to the owners in previous years. In short, the Mars are spreading their 200 foot (61 meter) wingspan to provide protection on a callout service or contract basis to any company or agency requiring the unique initial attack and sustained action qualities of the Mars. NO OTHER AIRCRAFT CAN DELIVER A MASSIVE 60,000 POUND (27,216 KILOGRAM) PAYLOAD AS QUICKLY AS THE MARS AND CONTINUE TO DELIVER IT EVERY FEW MINUTES FOR SEVERAL HOURS OR UNTIL THE PROBLEM IS SOLVED.

The Soviet Ekranoplan and WIG

The Cold War was the catalyst for the development of a diversity of interesting vehicles, platforms and technologies, but few have been of more interesting to me than the Soviet “Lun” ekranoplan pictured above and below. The Soviet Union began developing the wing-in-ground (WIG) ground effect technology in the 1930’s, but the craft reached a pinnacle of sorts in the 1980’s with the Lun , though WIG craft have yet to reach any broad application, whether military or commercial. Ekranoplans benefit from WIG in two important ways, the first being the ability to achieve incredibly high speeds and the second that flying at 10 to 50 feet above the surface makes them largely undetectable by radar.

WIG works as a high pressure region develops beneath the wing’s lower surface and above the water surface, which enhances its lift compared to a conventional wing in free air. The close proximity of the water also disrupts the formation of wing-tip vortices, which are a major cause of induced drag on conventional wings in free air. To benefit from WIG, the airfoil must have a relatively flat lower surface in order to increase lift. WIG craft have an advantage over water-bourne craft in that a huge amount of power is needed to overcome the drag of the water. By flying just above the water that power can be used for speed and carrying capacity.

Ekranoplans were developed in a range of sizes and applications, but they could reach enormous proportions and cargo carrying capacity. The Lun, among the largest to be developed, spanned 240 feet long with a wingspan of 144 feet. Its size would be comparable to a Boeing 747. It had a maximum takeoff weight of 882,000 pounds and a range of over 1,800 miles. This behemoth could cruise at 341 mph, leaving traditional naval vessels quickly in its wake.

The Soviet Ekranoplan and WIG

The Cold War was the catalyst for the development of a diversity of interesting vehicles, platforms and technologies, but few have been of more interesting to me than the Soviet “Lun” ekranoplan pictured above and below. The Soviet Union began developing the wing-in-ground (WIG) ground effect technology in the 1930’s, but the craft reached a pinnacle of sorts in the 1980’s with the Lun , though WIG craft have yet to reach any broad application, whether military or commercial. Ekranoplans benefit from WIG in two important ways, the first being the ability to achieve incredibly high speeds and the second that flying at 10 to 50 feet above the surface makes them largely undetectable by radar.

WIG works as a high pressure region develops beneath the wing’s lower surface and above the water surface, which enhances its lift compared to a conventional wing in free air. The close proximity of the water also disrupts the formation of wing-tip vortices, which are a major cause of induced drag on conventional wings in free air. To benefit from WIG, the airfoil must have a relatively flat lower surface in order to increase lift. WIG craft have an advantage over water-bourne craft in that a huge amount of power is needed to overcome the drag of the water. By flying just above the water that power can be used for speed and carrying capacity.

Ekranoplans were developed in a range of sizes and applications, but they could reach enormous proportions and cargo carrying capacity. The Lun, among the largest to be developed, spanned 240 feet long with a wingspan of 144 feet. Its size would be comparable to a Boeing 747. It had a maximum takeoff weight of 882,000 pounds and a range of over 1,800 miles. This behemoth could cruise at 341 mph, leaving traditional naval vessels quickly in its wake.