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BluShift Aerospace
BluShift Aerospace (sometimes stylized as bluShift Aerospace) is an employee-owned American aerospace firm based in Brunswick, Maine. Targeting the growing smallsat and cubesat launch markets, bluShift is developing suborbital sounding rockets and small-lift orbital rockets which will be launched from a proposed new spaceport in Maine. The company has received primary funding from NASAs SBIR grant program, the National Science Foundations I-Corps grant program, the Maine Technology Institute, and the Maine Space Grant Consortium. The company has active operations at the former Brunswick Naval Air Station and Loring Air Force Base. History bluShift Aerospace was founded on the vision of rockets powered by a bio-derived fuel, making them safer for handlers and the environment. This new propulsion technology will allow bluShift to offer cost-competitive rideshares for small numbers of cubesats at a time, to client-preferred orbits, with low wait times to launch. All of their vehicle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid-propellant Rocket
A hybrid-propellant rocket is a rocket with a rocket motor that uses rocket propellants in two different phases: one solid and the other either gas or liquid. The hybrid rocket concept can be traced back to the early 1930s. Hybrid rockets avoid some of the disadvantages of solid rockets like the dangers of propellant handling, while also avoiding some disadvantages of liquid rockets like their mechanical complexity. Because it is difficult for the fuel and oxidizer to be mixed intimately (being different states of matter), hybrid rockets tend to fail more benignly than liquids or solids. Like liquid rocket engines, hybrid rocket motors can be shut down easily and the thrust is throttleable. The theoretical specific impulse (I_) performance of hybrids is generally higher than solid motors and lower than liquid engines. I_ as high as 400 s has been measured in a hybrid rocket using metalized fuels. Hybrid systems are more complex than solid ones, but they avoid significant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallops Launch Complex 1
Wallop is a defunct social networking service. Wallop or Wallops may also refer to: Places *Farleigh Wallop, a small village and civil parish in Hampshire, England *Middle Wallop, a village in Hampshire, England *Nether Wallop a village in Hampshire, England *Over Wallop, a village in Hampshire, England *Wallops Island, Virginia, USA ** Wallops Island National Wildlife Refuge **Wallops Flight Facility, a rocket launch site People * Baron Wallop, a subsidiary title of the Earl of Portsmouth Surnamed * Douglass Wallop (1920–1985), American novelist and playwright * Gerard Wallop, 9th Earl of Portsmouth (1898–1984), English aristocrat * Henry Wallop (c. 1540–1599), English statesman * John Wallop (c. 1490–1551), English soldier and diplomat * John Wallop (died 1405), MP for Salisbury * John Wallop, 1st Earl of Portsmouth (1690–1762), English aristocrat * John Wallop, 2nd Earl of Portsmouth (1742–1797), English aristocrat * John Wallop, 3rd Earl of Portsmouth (1767–185 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallops Flight Facility
Wallops Flight Facility (WFF) is a rocket launch site on Wallops Island on the Eastern Shore of Virginia, United States, just east of the Delmarva Peninsula and approximately north-northeast of Norfolk. The facility is operated by the Goddard Space Flight Center in Greenbelt, Maryland, and primarily serves to support science and exploration missions for NASA and other Federal agencies. WFF includes an extensively instrumented range to support launches of more than a dozen types of sounding rockets; small expendable suborbital and orbital rockets; high-altitude balloon flights carrying scientific instruments for atmospheric and astronomical research; and, using its Research Airport, flight tests of aeronautical research aircraft, including unmanned aerial vehicles. There have been over 16,000 launches from the rocket testing range at Wallops since its founding in 1945 in the quest for information on the flight characteristics of airplanes, launch vehicles, and spacecraft, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Orbit
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. It has an inclination of about 60 - 90 degrees to the body's equator. Launching satellites into polar orbit requires a larger launch vehicle to launch a given payload to a given altitude than for a near-equatorial orbit at the same altitude, because it cannot take advantage of the Earth's rotational velocity. Depending on the location of the launch site and the inclination of the polar orbit, the launch vehicle may lose up to 460 m/s of Delta-v, approximately 5% of the Delta-v required to attain Low Earth orbit. Usage Polar orbits are used for Earth-mapping, reconnaissance satellites, as well as for some weather satellites.Science Focus 2nd Edition 2, pg. 297 The Iridium satellite constellation uses a polar orbit to provide telecommunications services. Near-polar orb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun-synchronous Orbit
A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time. More technically, it is an orbit arranged so that it precesses through one complete revolution each year, so it always maintains the same relationship with the Sun. Applications A Sun-synchronous orbit is useful for imaging, reconnaissance, and weather satellites, because every time that the satellite is overhead, the surface illumination angle on the planet underneath it is nearly the same. This consistent lighting is a useful characteristic for satellites that image the Earth's surface in visible or infrared wavelengths, such as weather and spy satellites, and for other remote-sensing satellites, such as those carrying ocean and atmospheric remote-sensing instruments that require sunlight. For example, a satellite in Sun-synchronous orbit might ascend acros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbit
In celestial mechanics, an orbit is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point. Normally, orbit refers to a regularly repeating trajectory, although it may also refer to a non-repeating trajectory. To a close approximation, planets and satellites follow elliptic orbits, with the center of mass being orbited at a focal point of the ellipse, as described by Kepler's laws of planetary motion. For most situations, orbital motion is adequately approximated by Newtonian mechanics, which explains gravity as a force obeying an inverse-square law. However, Albert Einstein's general theory of relativity, which accounts for gravity as due to curvature of spacetime, with orbits following geodesics, provides a more accurate calculation and understanding of the exact mechanics of orbi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beals, Maine
Beals is a town in Washington County, Maine, United States, located on an island opposite Jonesport. The town was named after Manwarren Beal, an early settler. The population was 443 at the 2020 census. Geography According to the United States Census Bureau, the town has a total area of , of which, of it is land and is water. The main settlement of Beals is located on Beals Island, which is connected by a bridge across Moosabec Reach to West Jonesport on the mainland. Beals Island is connected to the southeast by a short bridge to Great Wass Island, also within the town of Beals and comprising the Great Wass Island Preserve. Demographics 2010 census As of the census of 2010, there were 508 people, 228 households, and 147 families living in the town. The population density was . There were 361 housing units at an average density of . The racial makeup of the town was 97.8% White, 0.8% African American, 0.8% Native American, and 0.6% from two or more races. There were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonesport, Maine
Jonesport is a town in Washington County, Maine, United States. The population was 1,245 at the 2020 census. Jonesport is a fishing and lobstering town. It contains the villages or hamlets of Jonesport, Mason Bay, Monsapec, and West Jonesport. History Settled before the American Revolution, Jonesport was part of a grant of made by the Massachusetts General Court in 1789 to John C. Jones and others. It was incorporated on March 4, 1809, as Jonesborough. On February 3, 1832, a portion of Jonesborough was set off and incorporated as Jones' Port. Then a portion of Jonesport was set off and incorporated on April 7, 1925, as the island town of Beals, accessible by bridge, built in 1958, across the Moosabec Reach. Located on a peninsula out in the Gulf of Maine, the town's principal industries are fishing, boat building, harvesting blueberries, and tourist services. Jonesport includes many uninhabited islands which provide nesting areas for eider, cormorants, seagulls, razor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bar Harbor
Bar Harbor is a resort town on Mount Desert Island in Hancock County, Maine, United States. As of the 2020 census, its population is 5,089. During the summer and fall seasons, it is a popular tourist destination and, until a catastrophic fire in 1947, the town was a noted summer colony for the wealthy. The town is home to the College of the Atlantic, Jackson Laboratory and MDI Biological Laboratory. Bar Harbor is also home to the largest parts of Acadia National Park, including Cadillac Mountain, the highest point within of the coastline of the eastern United States. From the mainland, Bar Harbor is accessible by road via Maine State Route 3, by air at Hancock County–Bar Harbor Airport, and by ferry from Winter Harbor, Maine, and Yarmouth, Nova Scotia. History The town of Bar Harbor was founded on the northeast shore of Mount Desert Island, which the Wabanaki Indians knew as ''Pemetic'', meaning "range of mountains" or "mountains seen at a distance." The Wabanaki seas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Washington County, Maine
Washington County is a county located in the U.S. state of Maine. As of the 2010 census, its population was 31,095, making it the third-least populous county in Maine. Its county seat is Machias. The county was established on June 25, 1789. It borders the Canadian province of New Brunswick. It is sometimes referred to as "Sunrise County" because it includes the easternmost point in the 48 contiguous United States. Claims have been made that Washington County is where the sun first rises on the 48 contiguous states. Many small seaside communities have small-scale fishing-based economies. Tourism is also important along the county's shoreline, but it is not as important as elsewhere in the state. The blueberry crop plays a major role in the county's economy. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (21%) is water. Adjacent counties * Hancock County – southwest * Aroostook County – northwest * Penobscot Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hancock County, Maine
Hancock County is a county located in the U.S. state of Maine. As of the 2020 census, the population was 55,478. Its county seat is Ellsworth. The county was incorporated on June 25, 1789, and named for John Hancock, the first governor of the Commonwealth of Massachusetts. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (32%) is water. The county high point is Cadillac Mountain, 1527 feet, the highest summit on the U.S. Atlantic seaboard. Adjacent counties * Penobscot County — north * Washington County — northeast *Waldo County — west * Knox County — southwest Demographics 2000 census As of the census of 2000, there were 51,791 people, 21,864 households, and 14,233 families living in the county. The population density was 33 people per square mile (13/km2). There were 33,945 housing units at an average density of 21 per square mile (8/km2). The racial makeup of the county was 97.61% White, 0.25% Bla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
