{"product_id":"vintage-munro-mkii-counter-three-cup-anemometer-met-reference-number-2765","title":"Vintage Munro MkII Counter Three Cup Anemometer Met Reference Number 2765","description":"\u003ch1\u003eVintage Munro MkII Counter Three Cup Anemometer Met Reference Number 2765\u003c\/h1\u003e\n\u003cp\u003eThis is a very nice 1950s \/ 60s Vintage Munro MkII Counter Three Cup Anemometer Met Reference Number 2765, Serial No. 776\/58\/67, made by R.W Munro Ltd, London. A piece of Meteorological Equipment, which measures wind speed in statute miles (mph), and is connected directly to a mechanical counter.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis high quality wind measuring instrument is of a similar design to the Casella models. The reading would be taken periodically and noted in a logbook.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMade from grey painted bronze, the cups and main body do have some loss of colour, and surface scuffs and scratches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSummary\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured by RW Munro, London, UK (high quality manufacturers of measurement instrumentation)\u003c\/li\u003e\n\u003cli\u003eWind Speed in statute miles (mph)\u003c\/li\u003e\n\u003cli\u003eType: Mk II Met. Office Reference No. 2765\u003c\/li\u003e\n\u003cli\u003eMunro Serial No. 4728\u003c\/li\u003e\n\u003cli\u003eApproximate Cup Diameter = 12.7cm\/ 5″\u003c\/li\u003e\n\u003cli\u003eAxis to Outer Edge of Cup: approx. 21.5cm (8.5″)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Casella and Munro counter anemometers were widely deployed anemometers used for wind speed measurements by the UK Meteorological (Met) Office until superseded in the 1990s. In operation, the anemometer is usually mounted on a mast (not included) 10 metres above the ground and in conjunction with a wind direction weather vane (not included).  \u003c\/p\u003e\n\u003cp\u003eWe fully intended to erect the anemometer in our garden but, alas, this is one of many projects that hasn’t quite materialised, so it is with some reluctance that we have now decided to part with it. They are very difficult to find never mind in such good cosmetic condition! It hasn’t been hooked up in the past twenty years, hence I can’t vouch for measurement accuracy.\u003c\/p\u003e\n\u003cp\u003eIt would make a great garden feature. I like to watch the vane spinning around in the wind! A must have for the meteorologist or anemometer collector in the family!\u003c\/p\u003e\n\u003cp\u003eInternational customers: please contact me for a shipping quote as the prices quoted vary considerably between couriers, and on a daily basis! I always try to refund for shipping overages wherever possible.\u003c\/p\u003e\n\u003cp\u003eClick on the following link for more \u003ca href=\"https:\/\/mullard-antiques-and-collectibles.myshopify.com\/collections\/meterological-weather\" target=\"_blank\"\u003emeteorological and weather\u003c\/a\u003e related items.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNB:\u003c\/strong\u003e \u003cspan style=\"color: rgb(43, 0, 255);\"\u003eAccessories, e.g. mounting pole, are shown are for photographic purposes only and are not included.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSome Trivia For You Taken From The Met. Office Website\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWind speed is normally measured by a cup anemometer consisting of three or four cups, conical or hemispherical in shape, mounted symmetrically about a vertical spindle. The wind blowing into the cups causes the spindle to rotate. In standard instruments the design of the cups is such that the rate of rotation is proportional to the speed of the wind to a sufficiently close approximation. At intervals of no longer than five years, anemometers are calibrated in a wind tunnel to identify any departures in the relationship between spindle rotation and wind speed specified by the manufacturer. Calibration corrections are applied to the measured wind speed.\u003c\/p\u003e","brand":"RW Munro","offers":[{"title":"Default Title","offer_id":56995695591799,"sku":null,"price":159.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0303\/5122\/8972\/files\/Vintage_Munro_MkII_Counter_Three_Cup_Anemometer_Met_Reference_Number_2765.jpg?v=1775829148","url":"https:\/\/mullardantiques.co.uk\/products\/vintage-munro-mkii-counter-three-cup-anemometer-met-reference-number-2765","provider":"Mullard Antiques and Collectibles","version":"1.0","type":"link"}