SKU: 50499110343

Douglas Skystreak + Skyrocket Flight Operating Manual

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Description

Douglas Skystreak + Skyrocket Flight Operating ManualThe D 558 aircraft were part of a transonic research program originated by NACA and the U. S. Navy. The D 558 1 Skystreak turbojet was designed in 1945 and first flew in 1947 at Muroc. It quickly set a new world speed record of over 650 miles per hour. Although it approached Mach 1. 0 in level flight, the Skystreak could only break the speed of sound in a dive. The successor aircraft, the D 558 2 Skyrocket, was equipped with a turbojet and the same

The D-558 aircraft were part of a transonic research program originated by NACA and the U.S. Navy. The D-558-1 Skystreak turbojet was designed in 1945 and first flew in 1947 at Muroc. It quickly set a new world speed record of over 650
miles per hour. Although it approached Mach 1.0 in level flight, the Skystreak could only break the speed of sound in a dive. The successor aircraft, the D-558-2 Skyrocket, was equipped with a turbojet and the same rocket system as BellÕs X-1. The jet was used for takeoff and landing,
and the rockets allowed the aircraft to travel into the transonic zone. The Skyrocket test program began in 1948. In 1953, Scott Cross-
field bested that mark and flew into aviation history when he became the first person to reach Mach 2.0 in the plane. Originally printed by the U.S. Navy, NACA and Douglas, this book contains
manuals for both of these amazing aircraft. Originally classified ÒRestrictedÓ, they have been declassified and are here reprinted in
book form.

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SKU: 50499110343

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sheila speers
Omaha, US
★★★★★ 5
Great buy
Color: Orange
My did loves this ball
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Reviewed in the United States on May 27, 2026
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Mitch
Phoenix, US
★★★★★ 5
Our German Sheppard loves these
Size: Medium
These cost a bit more than tennis balls, but they are so much nicer and longer lasting. For starters, they stay cleaner than tennis balls because they’re smooth rubber. Dirt won’t build up on them and if anything does stick, like grass or soil, it falls off once the dog slobber dries. They’re also thick, so they don’t fall apart or blow out like a normal tennis ball does in our dog’s jaws after 30 seconds. Our GS chomps on these like crazy and the only damage they’ve suffered is a crack that developed from the edge of the hole, but the crack is growing very slowly and none of these balls have totally failed yet. The balls do whistle when thrown ant high speed and that may help a dog track and locate it, but I’m not sure. Our neighbors hear the whistling too so it’s far from silent. Lastly the orange ball is easy to locate out in our yard, but the dark blue practically disappears.
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Reviewed in the United States on April 6, 2025
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Casey B
Houston, US
★★★★★ 5
Great for smaller dogs
Size: Small
These two balls are perfect for the smaller mouthed dog that loves to play fetch. These balls are not only super durable (lots of teeth biting), but float in the baby pool we use for our miniature dachshunds. The value here is much better than you’d find anywhere else. The noise, if bitten hard enough, was “low” at best. Easy to spot/find if overthrown. Will definitely buy again once these are in bad repair; so far, so good-love these for my fur babies!
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Reviewed in the United States on October 8, 2024
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E. Schall
Whiting, US
★★★★★ 5
My dogs favorite balls
Size: Medium
These are great for my dog who always has to have a ball in her mouth. Not too hard so I don't have to worry about her teeth. They last for ever. They do lose their shape a little over time (like I said, she always has a ball in her mouth) they become a little oval in shape. They still bounce, she still chases it and she still chews on it so I don't think she notices or cares. I've gotten her a bag full of these over time and I have only seen one that she chewed a chunk out.
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Reviewed in the United States on September 28, 2023
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Kimmie is happy
Phoenix, US
★★★★★ 5
My Dachshunds Love These
Size: Small
These balls are durable, flexible material, highly chewable without being easily destroyed. I stuff them with Milkbone Maro Snacks, which are just the right size to twist into the holes in the ball. My dogs literally get an hour+ chewing and chasing entertainment from these. They chew them, they sometimes 'pop' out of their mouths, go rolling across the floor, dogs chasing them. This satisfies their urge to hunt prey. Dachshunds can easily tear this kind of stuff-it-toy apart. These have lasted for a long time without tearing or shredding. I would NOT recommend them for a dog much larger than a tweenie weenie. They're a bit on the small side and might be swallowed by a larger dog. It would be cool it they also came in a larger size (and probably ball wall thickness also) for the bigger dogs to enjoy. These stuff-it chew balls are better than the kong balls my dogs had before these. Highly recommend them.
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Reviewed in the United States on April 19, 2024

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