How far away can a helicopter be heard

Web9 feb. 2024 · You can generally hear thunder for about 10 miles ¹ in open country and about 5 miles in densely populated areas. However, there are some exceptions to this rule. If a particularly strong storm system produces the thunder, you can hear it much further away. In fact, there are records of thunder being heard at distances of up to 30 miles away ¹. Web80. 2 times as loud as 70 dB. Possible damage in 8 h exposure. Passenger car at 65 mph at 25 ft (77 dB); freeway at 50 ft from pavement edge 10 a.m. (76 dB). Living room music …

90 minutes from London in a helicopter. How far can you fly?

WebCan helicopters be quiet as a mouse or is the technology so secret because it’s not real? and riding a helicopter is always going to be loud. Find out how th... WebEC 135 - flying at a speed of 200 km/h and covering a range of 620 km. EC 145 - which has a cruise speed of 210 km/h and covers 680 km. AS 365 Dauphin - with a cruise speed of … cyprus weddings 2022 https://duffinslessordodd.com

jet engine - From what distance can a man hear and see an …

Web18 jan. 2024 · Typically, before helicopters can stop and refuel, it can actually fly for about 2.5 to 5 hours or travel for about 250 miles. But of course, not all helicopters can do … WebThe maximum recommended limit for human exposure is 85 decibels over a period of 8 hours or 70 decibels over a period of 24 hours. Sounds exceeding these time-weighted … Web8 okt. 2012 · You can hear Chinooks flying during the day at about 5-6 miles. During the night you can add a couple 2-3 miles. Blackhawks are about 2 miles shorter during the … cyprus weddings ltd

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How far away can a helicopter be heard

Why is a helicopter flying over my house right now 2024?

Webpastor 9.1K views, 268 likes, 309 loves, 598 comments, 165 shares, Facebook Watch Videos from Shadow Mountain Community Church: He Is Risen!! Join us... WebTransmission power ranges between 1 and 25 watts, giving a maximum range of up to about 60 nautical miles (111 km) between aerials mounted on tall ships and hills, and 5 nautical …

How far away can a helicopter be heard

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Web6 feb. 2024 · Crime prevention – another reason why helicopters are flying over my house is to prevent crime. Police helicopters may patrol high-crime neighborhoods to deter … Web6 jul. 2024 · Even the background noises in your ear can easily drown it (blood flow and any mild tinnitus). Probably 20dB is about your limit and if you live in a city maybe 40-50 dB …

Web16 okt. 2024 · Technically, you can’t get 400 miles per hour in a helicopter, but you will find that many helicopters fly at 200 to 300 mph. What is the distance of the longest ever … Web26 jul. 2009 · How far can a helicopter go up? Wiki User. ∙ 2009-07-26 21:51:27. Study now. See answer (1) Best Answer. Copy. That depends largely on the type of helicopter.

Web15 mrt. 2024 · If you want to know how far away drones can hear conversations, then the answer is: between 100 feet and 100 yards away. This is because the maximum range … Web27 jan. 2024 · Given that information, we can estimate how far away different radio telescopes could detect the current TV carrier wave radio leakage from Earth. The …

Web3 jun. 2024 · Helicopters nowadays fly an average distance of anywhere between 250 to 400 miles on a single tank. There are, however, better-equipped helicopters, such as …

Web3 mrt. 2011 · it can depend. mobzilla from orespawn can probably be heard from 200+ blocks away. I think that in a mod called the john mod, the mega john can be heard from over 500 blocks away. it depends on how loud the mob is, and what your device's volume is on. (note: i don't own either of the before mentioned mods) Share Improve this answer … binary to float calculatorWeb20 jun. 2024 · The speed of a helicopter is one of the most interesting aspects of helicopters. Helicopters can fly at speeds as low as 0 knots and as high as 250 knots. … cyprus weekly newspaper englishWeb12 apr. 2012 · Ground width of the boom exposure area is approximately 1 statute mile (1.6 km) for each 1,000 feet (300 m) of altitude (5 m/m); that is, an aircraft flying supersonic at 30,000 feet (9,100 m) will create a lateral boom spread of about 30 miles (48 km), or at 10,000 meters a spread of 50 kilometers. cyprus weekly news onlineWeb9 feb. 2024 · You can generally hear thunder for about 10 miles ¹ in open country and about 5 miles in densely populated areas. However, there are some exceptions to this rule. If a … cyprus weedWebIf we assume that the whistle needs to be 35 dB to be heard outside in this "optimal" scenario, the pressure needs to drop by 90 dB (or 15 doublings of distance). 2^15*2.5m … cyprus weddings made easyWebWithout a doubt, how far a helicopter can fly varies according to its size and type, as well as a variety of other factors, such as the capacity and number of its fuel tanks. To cite a … binary to gray code converter lab manualWeb31 jul. 2014 · Contrails generally form at about 6 to 8 miles up. (Roughly 31,000 to 42,000 feet, although they can form higher or lower). Six miles is a good rule of thumb. So if you assume the contrails is 6 miles up, and you know the angle, then you can calculate how roughly far away it is. If it's 5 degrees, and 6 miles up, then it's 68 miles away. cyprus weddings paphos