SCIENCE AND MATHEM ATICS IN THE JUNIOR HIGH SCHOOL 573 STUDYING THE LIFE CYCLE OF BIRDS, INSECTS, AND FISH 1. Discussing the migration of familiar birds and the distance traveled, height at which they fly 2. Comparing incubation periods of frog, bird and fish eggs LEARNING HOW TIME IS MEASURED 1. Studying the movement of the earth and the speed at which it travels 2. Drawing diagrams to show the position of the earth as it revolves around the sun 3. Studying the various ways of measuring time and our time belts STUDYING THE EARTH AND THE FORCES WHICH ARE CHANGING IT 1. Discovering how much of the earth^s surface is covered by water 2. Discussing and comparing heights above sea level 3. Discussing ocean depths 4. Discussing size and movements of glaciers STUDYING THE UNIVERSE 1. Make a scale drawing of the orbits of the planets 2. Card table with light bulb for showing cause of day and night and also seasons 3. Discussion of light years 4. Comparing the size of the various planets INCIDENTALS 1. Construction of cage for pets 2. Changing linear measure to metric measure 3. Reading electric meters 4. What will 50 cents worth of electricity give you? 5. How much does it cost to heat a home ? 6. What fuel is likely to be most economical? 7. Discussion of water and air pressure. THE NAVY IMPROVES FLIGHT EQUIPMENT ALLEN LONG Science Service Aviation Writer A thin parachute pack hugging the backs of Navy pilots will be knocking about $3,000 off the cost of military airplanes in the future. Comdr. R. A. Bosee, parachute test director at the El Centro, Calif., Naval Air Station, said the parachute requires about half the space of its predecessor. Its reduced bulk, about one and a half inches thick in comparison to the ordinary three-inch pack, saves enough space to account for $3,000 in metal, engineering and construction costs. A "new look^ flight suit for Navy pilots is a snug-fitting nylon garment with a revolutionary harness designed to reduce wear and tear on the pilot in high- speed bailouts. The suit distributes the opening shock of the parachute over the pilots feet, calves, thighs, trunk and shoulders. Conventional harnesses are strapped around the legs and under the arms. The entire impact of the opening canopy is absorbed in these small areas. Another suit, now in the testing stage, has a built-in parachute harness to which the pilot plugs his parachute, cockpit shoulder straps and seat belt. This slashes by 75% the time required for him to perform these operations. The built- in harness eliminates the complex cross-straps that get in his way.

THE NAVY IMPROVES FLIGHT EQUIPMENT

Download PDF Report

Upload
allen-long
View
214
Download
1

Embed Size (px)

Citation preview

Page 1: THE NAVY IMPROVES FLIGHT EQUIPMENT

SCIENCE AND MATHEMATICS IN THE JUNIOR HIGH SCHOOL 573

STUDYING THE LIFE CYCLE OF BIRDS, INSECTS, AND FISH1. Discussing the migration of familiar birds and the distance traveled, height

at which they fly2. Comparing incubation periods of frog, bird and fish eggs

LEARNING HOW TIME IS MEASURED1. Studying the movement of the earth and the speed at which it travels2. Drawing diagrams to show the position of the earth as it revolves around

the sun3. Studying the various ways of measuring time and our time belts

STUDYING THE EARTH AND THE FORCES WHICH ARE CHANGINGIT

1. Discovering how much of the earth^s surface is covered by water2. Discussing and comparing heights above sea level3. Discussing ocean depths4. Discussing size and movements of glaciers

STUDYING THE UNIVERSE1. Make a scale drawing of the orbits of the planets2. Card table with light bulb for showing cause of day and night and also

seasons3. Discussion of light years4. Comparing the size of the various planets

INCIDENTALS1. Construction of cage for pets2. Changing linear measure to metric measure3. Reading electric meters4. What will 50 cents worth of electricity give you?5. How much does it cost to heat a home ?6. What fuel is likely to be most economical?7. Discussion of water and air pressure.

THE NAVY IMPROVES FLIGHT EQUIPMENTALLEN LONG

Science Service Aviation Writer

A thin parachute pack hugging the backs of Navy pilots will be knockingabout $3,000 off the cost of military airplanes in the future. Comdr. R. A. Bosee,parachute test director at the El Centro, Calif., Naval Air Station, said theparachute requires about half the space of its predecessor. Its reduced bulk,about one and a half inches thick in comparison to the ordinary three-inch pack,saves enough space to account for $3,000 in metal, engineering and constructioncosts.A "new look^ flight suit for Navy pilots is a snug-fitting nylon garment with

a revolutionary harness designed to reduce wear and tear on the pilot in high-speed bailouts. The suit distributes the opening shock of the parachute over thepilots feet, calves, thighs, trunk and shoulders. Conventional harnesses arestrapped around the legs and under the arms. The entire impact of the openingcanopy is absorbed in these small areas.Another suit, now in the testing stage, has a built-in parachute harness to

which the pilot plugs his parachute, cockpit shoulder straps and seat belt. Thisslashes by 75% the time required for him to perform these operations. The built-in harness eliminates the complex cross-straps that get in his way.