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A minimum off-route altitude (MORA) provides a quick way for an aircraft pilot to read the minimum altitude required for terrain and obstacle clearance. MORAs give at least 1,000 feet altitude clearance above terrain and obstacles such as radio masts, and 2,000 feet where the terrain and obstacles exceed 5,000 feet. [1]
In the 1980s the RNLI's Arun and Waveney all-weather lifeboats provided coverage 30 miles (48 km) out to sea, operating at up to 18 knots (33 km/h) to cover the distance in two hours in good weather. However the RNLI felt that they needed the capability to extend their coverage to 50 miles (80 km) radius which would require lifeboats with a top ...
High Speed 1 (section 2) in the UK has a minimum vertical curve radius of 10,000 m (32,808 ft) [6] and High Speed 2, with the higher speed of 400 km/h (250 mph), stipulates much larger 56,000 m (183,727 ft) radii. [7] In both these cases the experienced change in weight is less than 7%.
The rule affected only those aircraft operating under IFR when in level flight above 3,000 ft above mean sea level, or above the appropriate transition altitude, whichever is the higher, and when below FL195 (19,500 ft above the 1013.2 hPa datum in the UK, or with the altimeter set according to the system published by the competent authority in ...
Example of a ballistic table for a given 7.62×51mm NATO load. Bullet drop and wind drift are shown both in mrad and MOA.. A ballistic table or ballistic chart, also known as the data of previous engagements (DOPE) chart, is a reference data chart used in long-range shooting to predict the trajectory of a projectile and compensate for physical effects of gravity and wind drift, in order to ...
For example in the histories of towns like Pattison, Brookshire, Tomball, Waller, and Hempstead, all some 75-100 miles inland of Galveston, there is evidance of destruction and damage caused by this storm. Many smaller towns within a 50 mile radius of Galveston were never rebuilt or never regained the growth they were enjoying prior to the storm.
(2+1)" indicates a group of two flashes, followed by one flash. A specific case sometimes used [2] is when the flashes are longer than two seconds. Such a light is sometimes denoted "long flashing" with the abbreviation "L.Fl". If the frequency of flashes is high (more than 30 [3] or 50 [2] per minute) the light is denoted as a "quick light ...
The ship is navigating in the safe sector (white light is commonly marked as yellow in nautical charts). [2] A sector light is a man-made pilotage and position fixing aid that consists of strictly delineated horizontal angle light beams to guide water-borne traffic through a safe channel at night in reasonable visibility. Sector lights are most ...