flags at top of fuselage?

From:         Arthur.Leung@Eng.Sun.COM (Arthur Leung)
Date:         12 May 94 13:19:34 
Organization: Sun Microsystems Computer Corporation
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while i was watching japanese television, i noticed that
the japanese 747 that is used as the official transport for
the prime minister had a pair of small flags coming out of
the top of the fuselage.  they were gone when the aircraft
departed.  did someone go up and pull them or are they
mechanically retracted?

pardon the intrusion - i'm just a bit curious.

-- arthur