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In the text of advisory circulars · 8
AC 61-134 Ed UpdateGeneral Aviation Controlled Flight Into Terrain Awareness…Other international factors include different types of
altimeter settings, terrain elevation, runway data in units other than feet, and a…AC 00-6BHistoricalAviation Weather…Weather Balloon and Radiosonde
5.2.6.2 Constant Pressure Surface Analysis (Upper Air Chart). These heights
measured by the…AC 43-18 CHG 1HistoricalFabrication of Aircraft Parts by Maintenance Personnel…29 Balloons
Baskets (31-1)
Envelopes (31-1)
31 Balloon Burner Systems
Burner Units (31-1)
31 Balloon Fuel Systems…AC 00-45G CHG 1HistoricalAviation Weather Services…PERM Permanent
PGTSND Puget Sound
PHYS Physical
PIBAL Pilot balloon observation
PIREP Pilot weather report
PL Ice pellets
PLNS Plains…AC 00-45F CHG 1HistoricalAviation Weather Services…PERM Permanent
PGTSND Puget Sound
PHYS Physical
PIBAL Pilot balloon observation
PIREP Pilot weather report
PL Ice pellets
PLNS Plains…AC 00-45F CHG 2HistoricalAviation Weather Services…PERM Permanent
PGTSND Puget Sound
PHYS Physical
PIBAL Pilot balloon observation
PIREP Pilot weather report
PL Ice pellets
PLNS Plains…AC 91-70AHistoricalOceanic and International Operations…of a tethered balloon, which rises to
15,000 feet.
(3) Georgetown, Paramaribo. The airport (elevation 95 feet) is 25…AC 70/7460-1KHistoricalObstruction Marking and Lighting…NONSTANDARD LIGHTS
Moored balloons, chimneys, church steeples, and
similar obstructions may be floodlighted by fixed
search light projectors installed at…