Aeronautical experts regarded as significant three recent performances.
Diesel. Near Utica, Mich., last week, Packard Motor Co. successfully tested the first Diesel type engine to be used in an aircraft, declared that the oil burning motor increased efficiency 25%, banished danger of fire from gasoline, eliminated electric ignition systems, carburetors, spark plugs, other nuisances.
Fool Proof. Conspicuous among the hundreds of planes at the National Aeronautical Exposition at Mines Field, Los Angeles, was a stubby little contraption which the curious observed had no horizontal stabilizer, but...