uncleflo
Registered since September 28th, 2017
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HOME | arcaspace
Saved by uncleflo on February 6th, 2022.
EcoRocket is designed around two main features: cost-effectiveness and eco-friendliness and it is designed to launch commercial payloads starting with 2021. The EcoRocket Heavy will follow. The first two stages are reusable and are using water-based propulsion technology that generates water vapours through cold reaction. The expandable third stage uses conventional hot rocket propulsion and it's ignited at high altitude, above the thick atmosphere. Both the first and second stage use the high efficiency aerospike engine technology. The whole rocket uses 86% water-based propellant. ARCA already tested this technology at full-scale. EcoRocket is sea-launched, directly from the sea surface, the first sea trials taking place on the Black Sea, in July 2021. EcoRocket is competing in the European Commission's 10 million Euros competition that aim to stimulate the creation of new, small orbital launchers that are cost effective and friendly to the environment.
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RP2040 Launches Rocket Flight Computer | Tom's Hardware
Saved by uncleflo on January 27th, 2022.
Putting Raspberry Pi boards into space is nothing new, but the method of achieving orbit often differs. While the Astro Pi computers headed for the final frontier onboard a SpaceX Falcon 9 rocket, there are some decidedly lower-tech approaches including, as detailed on the Tindie blog, this $45 RP2040 flight computer from Finnish designer Dan Invents. Combining the RP2040 controller with an altimeter, accelerometer, temperature sensor, and enough juice to power two servo motors (for parachute deployment on the way down), the Rockit (rocket operation computing kit) weighs just 0.18oz (5g) and measures 1.73 x 0.9 x 0.35 inches (44 x 22 x 9 mm). It comes with an open-source firmware pre-installed, and can be tinkered with and updated over micro USB. There's a 16-position rotary switch for adjusting parameters such as start and end positions for the servos, and also a buzzer, so you can more easily find your rocket after a successful landing. Compared to the 2MHz Apollo guidance computer that deposited Neil Armstrong on the Moon, the RP2040 is a powerhouse, and should be more than capable of altitude-based parachute opening and logging flight data from the sensors to a micro SD card. The kit, which costs $44.99, comes with just the board and its pin headers - you need to supply your own battery, servos, cabling, micro SD card and space suit.
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F-15 Streak Eagle Record Flights Part 1 - YouTube
Saved by uncleflo on June 3rd, 2014.
The Streak Eagle attempts to break numerous world air records. Even if you don't like airplanes, just play it for the music. You'll notice that the Streak Eagle isn't painted, that's to reduce overall weight and make it go faster. You'll also notice that before take off, it is chained to the runway and then released. This is to build up as much potential energy as possible before the plane takes off.
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Seven Summits Guided Climb and Expedition - Mount Everest - Mountain Madness
Saved by uncleflo on July 23rd, 2013.
All climbers are required to have past high-altitude mountaineering experience. In addition, members should be able to ascend and descend fixed lines independently and be proficient with cramponing on steep ice/snow slopes. For an increased chance of success, members should also be in good physical condition. Our “Live Your Dreams” training program can help you gain any additional training or experience needed.
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