Friedrichshafen, Germany, Oct. 25 - (AP) - Construction secrets of the world's largest and first gas-burning dirigible, the L. Z. 127, have been partially disclosed by Dr. Hugo Eckener, commander.

The gas fuel is marsh gas or carburetted hydrogen with the chemical formula CH4. Much lighter and more efficient than gasoline or benzol, Dr. Eckener said, the gas draws its greatest advantage from the fact that when it explodes in the engine cylinders one of the products is water vapor. The vapor, passing out through the exhausts of the five 420-horsepower Maybach motors, will be condensed in tanks; part of it used to replenish water in the cooling systems of the motors and the rest stored as ballast.

As ballast, the exhaust water will more than make up for the loss in weight the dirigible will suffer when fuel is consumed enroute so that instead of letting out expensive hydrogen from the gas bag either before landing or when forced into high altitudes, water can be discharged from the tanks. The use of carburetted hydrogen will cut down by 35 per cent the initial useful load carried by the dirigible.

Friedrichshafen, Germany, Oct. 25 - (AP) - Construction secrets of the world's largest and first gas-burning dirigible, the L. Z. 127, have been partially disclosed by Dr. Hugo Eckener, commander.

The gas fuel is marsh gas or carburetted hydrogen with the chemical formula CH4. Much lighter and more efficient than gasoline or benzol, Dr. Eckener said, the gas draws its greatest advantage from the fact that when it explodes in the engine cylinders one of the products is water vapor. The vapor, passing out through the exhausts of the five 420-horsepower Maybach motors, will be condensed in tanks; part of it used to replenish water in the cooling systems of the motors and the rest stored as ballast.

As ballast, the exhaust water will more than make up for the loss in weight the dirigible will suffer when fuel is consumed enroute so that instead of letting out expensive hydrogen from the gas bag either before landing or when forced into high altitudes, water can be discharged from the tanks. The use of carburetted hydrogen will cut down by 35 per cent the initial useful load carried by the dirigible.

Friedrichshafen, Germany, Oct. 25 - (AP) - Construction secrets of the world's largest and first gas-burning dirigible, the L. Z. 127, have been partially disclosed by Dr. Hugo Eckener, commander.

The gas fuel is marsh gas or carburetted hydrogen with the chemical formula CH4. Much lighter and more efficient than gasoline or benzol, Dr. Eckener said, the gas draws its greatest advantage from the fact that when it explodes in the engine cylinders one of the products is water vapor. The vapor, passing out through the exhausts of the five 420-horsepower Maybach motors, will be condensed in tanks; part of it used to replenish water in the cooling systems of the motors and the rest stored as ballast.

As ballast, the exhaust water will more than make up for the loss in weight the dirigible will suffer when fuel is consumed enroute so that instead of letting out expensive hydrogen from the gas bag either before landing or when forced into high altitudes, water can be discharged from the tanks. The use of carburetted hydrogen will cut down by 35 per cent the initial useful load carried by the dirigible.

Friedrichshafen, Germany, Oct. 25 - (AP) - Construction secrets of the world's largest and first gas-burning dirigible, the L. Z. 127, have been partially disclosed by Dr. Hugo Eckener, commander.

The gas fuel is marsh gas or carburetted hydrogen with the chemical formula CH4. Much lighter and more efficient than gasoline or benzol, Dr. Eckener said, the gas draws its greatest advantage from the fact that when it explodes in the engine cylinders one of the products is water vapor. The vapor, passing out through the exhausts of the five 420-horsepower Maybach motors, will be condensed in tanks; part of it used to replenish water in the cooling systems of the motors and the rest stored as ballast.

As ballast, the exhaust water will more than make up for the loss in weight the dirigible will suffer when fuel is consumed enroute so that instead of letting out expensive hydrogen from the gas bag either before landing or when forced into high altitudes, water can be discharged from the tanks. The use of carburetted hydrogen will cut down by 35 per cent the initial useful load carried by the dirigible.

Friedrichshafen, Germany, Oct. 25 - (AP) - Construction secrets of the world's largest and first gas-burning dirigible, the L. Z. 127, have been partially disclosed by Dr. Hugo Eckener, commander.

The gas fuel is marsh gas or carburetted hydrogen with the chemical formula CH4. Much lighter and more efficient than gasoline or benzol, Dr. Eckener said, the gas draws its greatest advantage from the fact that when it explodes in the engine cylinders one of the products is water vapor. The vapor, passing out through the exhausts of the five 420-horsepower Maybach motors, will be condensed in tanks; part of it used to replenish water in the cooling systems of the motors and the rest stored as ballast.

As ballast, the exhaust water will more than make up for the loss in weight the dirigible will suffer when fuel is consumed enroute so that instead of letting out expensive hydrogen from the gas bag either before landing or when forced into high altitudes, water can be discharged from the tanks. The use of carburetted hydrogen will cut down by 35 per cent the initial useful load carried by the dirigible.