Aviation Weekly Newsletter - Monday, June 29, 2015

Aviation newsletter

Top new questions this week: Why do helicopters have such limited range? Why do the rotor-crafts (like helicopters) have such limited range, rarely exceeding 1000 km on a full tank. For example, the range of Apache is close to 425 km, and MI-26's is 800 km. helicopter rotorcraft   asked by anshabhi 33 votes answered by Eric Greenwood 39 votes How did SR-71 spy, flying at 80,000 ft and 3500 km/h? The SR-71 Blackbird is a famous supersonic reconnaissance/spy aircraft, undoubtedly one of the most amazing flying machines ever. Now, with the capabilities it had: Maximum speed: Mach 3.3 ... aviation-history sr-71 reconnaissance-aircraft   asked by anshabhi 27 votes answered by RRR 47 votes Do jet contrails impact weather? Do the jet contrails impact weather at the ground? weather contrails   asked by anshabhi 20 votes answered by mins 18 votes Why does a missile have small wings but better agility than a plane? An anti air missile has often very small wings but out performs a fighter aircraft, e.g. much higher g-load, since g-load comes from lift which is the area of wing. Why not designing an aircraft like ... aerodynamics   asked by user2174870 18 votes answered by Peter Kämpf 39 votes How do large airliners de-ice in flight? How do large airliners de-ice their surfaces in midair? In smaller planes like the ATR or the caravan there are deicing boots as per picture: How is this achieved on bigger aircraft, as there seems ... ice anti-ice   asked by Fabrizio Mazzoni 18 votes answered by Sports Racer 19 votes How does the weather radar work? I was reading this question about turbulence and how pilots foresee it, and in one of the answers, @Rhino Driver states: Weather Radar Just like using your eyes, except the radar can see further ... airliner flight-instruments   asked by Gabriel Brito 17 votes answered by casey 22 votes How are cruise missiles different from ballistic missiles? Cruise missiles and ballistic missiles are used by many nations as offensive and defensive technology. How do cruise missiles and ballistic missiles maneuver, and what are the differences between the ... missiles control-surfaces   asked by Victor Juliet 16 votes answered by Damalani Singh 17 votes Greatest hits from previous weeks: Why do aircraft have an unusable amount of fuel? I learned from this question that a Cessna 152 holds 5.6 litres of fuel that it can't use. Why would it be designed to hold fuel that it cannot burn, especially since water contamination of fuel is ... aircraft-design fuel-tanks   asked by FreeMan 39 votes answered by Ezekiel Kruglick 59 votes If a typical passenger plane had total failure of all engines mid-flight, is it possible for passengers to survive? I have pretty bad flying phobia and often wonder what would happen if all the engines on the craft went out at the same time. I initially had the anxiety-ridden thought that the hundreds of thousands ... safety aerodynamics airliner emergency   asked by Joseph Malicke 22 votes answered by shanet 37 votes Can you answer these? Do you have AC power in small airplanes? I know that DC power is essential for avionics and that in medium and big airplanes AC (28 V, 400 Hz) is used with DC (28 V). Small airplanes have a starter-generator that provides DC, but do they ... electrical-system electrics   asked by Gianni Alessandro 6 votes Consideration of pets in a cargo fire indication In this event, the crew of a 777 responded to a spurious cargo fire indication by activating the fire suppression system, which suffocates the cargo area. Presumably any pets held there would have ... cargo fire   asked by Hugh 3 votes Drones photography and ground control regulation I have been having a conversation at the office about whether to use ground control when using drones/UAVs to capture aerial images. The ground control that I am referring too is any permanent survey ... unmanned-aerial-vehicle   asked by TsvGis 1 vote

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