8.50 



PopiiJar Srirnrr Monthh/ 



This apprentice machine is named after the penguin because, like that bird, it can skim 

 along the surface of the water, but is unable to fly. It is safe for the inexperienced aviator 



The Penguin Seaplane— It Swims 

 But Doesn't Fly 



DO you know what a penguin is? You 

 may have read of it but probably 

 have never seen one. The penguin is an 

 aquatic bird found in the polar regions. 

 It is remarkable for its peculiar structure. 

 It has only small stumps in -place of 

 wings and, for that reason, is unable to 

 fly. But it is a good walker and an expert 

 swimmer and diver. 



The name of "penguin" has also been 

 given to the training apparatus employed 

 to teach prospective aviators the control 

 of the airplane or seaplane. The name 

 is well chosen. The penguin used for 

 training is as unable to fly as its arctic 

 namesake. It consists of an airplane with 

 wings so small that the power of the 

 motor is unable to lift the airplane off 

 the ground or water. It is supplied with 

 ailerons, elevator, rudder and wheels ex- 

 ceptionally strong for running on 

 the ground. The apprentice is en- 

 encouraged to run this "pen- 

 guin" to his heart's content; 

 there is no danger that it will 

 take to the air. In a short 

 time he graduates to a real air- 

 plane that can and does fly, and 

 then he can give all his attention 

 to the flying part without having to 

 worry over the handling of the various 

 controls. The sense of safety he en- 

 joys while learning is a great nerve- 

 sedative to the inexperienced aviator. 



This Baby Caterpillar Tank Looks 

 Dangerous But Isn't 



THE miniature caterpillar tank shown 

 in the accompanying illustration is 

 not an instrument of war, nor is it in- 

 tended to become one. It was made at 

 the request of the Red Cross organization 

 of Stockton, California, by a local 

 manufacturer of caterpillar tractors, to be 

 used as an attraction in a society circus, 

 which netted nearly $10,000. 



The exterior of the tank was patterned 

 after the English tanks used on the battle- 

 field. A motorcycle engine was put in 

 to supply the power for the motion of the 

 track chains. It was so arranged that 



either side could 

 be disconnect- 

 ed or worked 

 independently, 

 thus permit- 



ting 

 turn 



sharp 



A one man tank built like one of the big English 

 tanks, but intended for a less bellicose purpose 



