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… balloons are regulated In Canada, a permanently-tethered balloon system is an "aircraft" under the definition of the Aeronautics Act . Specifically, a balloon is defined as a "non-power driven lighter-than-air … Regulations would impose on a permanently-tethered balloon system operation include: Aircraft Registration …
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… The holdover time (HOT) guidelines provide estimates of how long aircraft … anti-icing an aircraft on the ground. On this page Current HOT guidelines Current degree-specific holdover time (DSHOT) … with safe holdover times given the following criteria: Air temperature Type of precipitation Rate of precipitation …
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