Brake parachute for supply drop - with pyramid shape and small hole in apex to prevent flattening in winds,申请号DE19691929706-传众专利搜索

Brake parachute for supply drop - with pyramid shape and small hole in apex to prevent flattening in winds

申请公布号：DE1929706(B2)

申请号：DE19691929706

申请日期：1969.06.11

申请公布日期：1977.03.17

分类号：B64D17/02;E04B1/74;E04B9/22;(IPC1-7):B64D17/02

主分类号：B64D17/02

摘要：<p>The brake parachute for supply drop has a series of trapezoidal panels (2) sewn into a pyramid shape, when inflated. A hole at the apex (5) spills out the air collected under the canopy, which is non porous. When extended, the half diameter (e) of the canopy is less than the height of the pyramid. The cross sectional area of the hole is about 1% of the total area of the canopy. The airflow under the canopy prevents it from flattening even in high winds. The load is dropped in a near vertical trajectory with high accuracy, and with a minimum of swinging. The terminal speed is slow enough to prevent damage to the load.</p>