{"product_id":"7-fms-221","title":"Winter Instruments 7 FMS 221","description":"\u003cp\u003eWinter 7 FMS 221, item 7221, is a pitot airspeed indicator in a 57 mm case with a 0–250 km\/h range on a 360° scale with linear graduation; the dial reads from 30 to 250 km\/h. The small standard case suits panels with limited space. The instrument needs 57 mm behind the panel and weighs 0.075 kg.\u003c\/p\u003e\u003cp\u003eAn open diaphragm cell measures the difference between total pressure and static pressure, and a linkage and gear train drives the pointer. Indication error at room temperature is ±2 km\/h up to 100 km\/h and ±3 km\/h above. The dial has white markings on matt black, with zero at the 6 o'clock position as standard. The same instrument in mph is item 7222 and in knots item 7223.\u003c\/p\u003e\u003cp\u003eWinter supplies the new instrument with an EASA Form 1 and installation instructions. It mounts in a 57 mm panel hole with M4 screws on a 67 mm bolt circle. A leak test is required before first use and at least every 2 years. Item 7221 is the version without colour marking; colour-marked versions take the part number from the aircraft manufacturer's documents or Winter. Fit depends on the aircraft type and the required colour marking.\u003c\/p\u003e","brand":"Winter","offers":[{"title":"Default Title","offer_id":58183750156619,"sku":"7221","price":11870.5,"currency_code":"CZK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1055\/1063\/3803\/files\/7221.jpg?v=1791614429","url":"https:\/\/shop.airteam.eu\/products\/7-fms-221","provider":"AIR TEAM","version":"1.0","type":"link"}