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Show it BuPEmsMlkinE CAPRI MARK ; What ML III It's a satellite? the" payload of a multistage missile, cohtaining instruments for researching outer space. Where a Dart is thrown 1,000 yards and an ICBM 5,000 miles, a satellite is thrown so hard it keeps right on going. What happens is that it is thrown out of the. earth's dense atmosphere and given another burst of speed in space, enough to balance the pull of gravity. For example, let's follow a flight of the Navy's Vanguard, which launched America's second satellite. Unlike the Juptter-which adapted missiles originally built for Vanmilitary purposes, the three-staguard was built from the ground up as a satellite launcher. II ALL Is C, ge I FROM ' TIP J TO CLIP! I only HI $Q49 i I j y' ed parallel to the earth's surface, a delay fuse ignites its engine, which powers the satellite to a speed of 18,000 m.p.h. At burnout the satellite is sprung loose by a special explosive spring. The path of the assembly when the third stage starts burning, and its speed at burnout are critical for a successful orbit- - If it's still going away from the earth when ignited, the satellite will make a narrow NOT TO SKIP ON ANY SURFACE! GUARANTEED 9 exposing the third stage and the satellite. After burnout the whole assembly coasts to an altitude of 300 miles. There a rocket-powerturntable spins the third stage. Special reverse rockets slow down the second stage, and the third stage coasts clear. When the third stage's path is roughly " T rV wont skip over grease spots. HAND PRINTS. OR FIN6ER PRINTS ' ON " " "' PAPER:. OVER A WON'T EVEN SKIP SMEAR OF BUTTER the secret? Paper Mate's What's .... . new writing formula with ' In your choice of eight new, modern colors. 1 1 I 1 el B The Capri Mark III cleans its own BIRTHDAY- S- ANY GIFT OCCASION the MARK III a 7 GOLDEN CAPRI Jewelry finished in ELECTROPLATED in QS GOLD PIGGY--f j U ".PAPER MATE'S NEW MODEL CAPRI WITH 1958, THE PAPER MATE CO. VM' . . I Ar A SKIP-FREE- I I I Attractive Gift Box 2P0IM15! f) patl through grease spots, handprints and fingerprints on paper . . . ends skipping forever. FOR FATHERS DAY, GRADUATIONS, Paper Mate's new formula with detergent action literally cuts a path through things that cause ordinary pens to skip slick surface film, oily fingerprints, you' name it! Detergent action is your guarantee of skip-fre- e writing everytime on any writing surface! WRITING REFILL" U. S. PAT. OFF. I I I The first stage has a liquid-rock- et engine oxidizer). (kerosene fuel, liquid-oxygThe second stage contains a liquid-rock- et oxidizer) engine (hydrazine fuel, nitric-aci- d and the Vanguard's inertial-typ- e guidance (solid-rock- et enthird The system. stage gine) and the satellite are mounted inside the nose cone of the second stage. The first two stages are steered by moving the engines., The third stage is not steered, but is given directional stability by spinning it like a rifle bullet. When launched, the first stage powers the , Vanguard (straight up at first, then on a curving path) to an altitude of 35miles and a speed of 4,000 m.p.hr At burnout, six ex- plosive bolts separate the first stage, and the second-stag- e engine is automatically ignited, powering the missile to an altitude of 130 miles and a speed of 9,000 m.p.hv During, this time the nose cone drops off, en flying out into space, then turning too sharply and flying right back at the semi-orb- it, earth, burning up when striking the atmosphere. If it's pointed back toward the earth when it begins burning, it will the atmosphere almost immediately with the re-en- ter same result. If its speed is too slow (much less than -- 18,000 m.p.h.), it won't offset gravity arid will start "scraping" the atmosphere,' slowing down even more. If its speed is too fast (more than 25,000 m.pJi.), the assembly will fly right on out into space. Future interplanetary missiles, incidentally, must achieve this "escape" velocity. TV PUT f The moon and Mars. Experts claim that, with more powerfaljiussiles than the first satellite launchers, it can be done and soon. All aboard! Family Weekly, June 29, 1958 29 |