38_143685_box_Incident_Summaries_173-233

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Page 3
Incident No .
Guide to Investig~tion
Relative to Radar Sightings
... .
Re radars now oper at ing on ground
a .
Observations of direction,
rDr..go, speed, altitude and size
of t arget :
b .
Did tcrg, t execute any turns? If so, what ar.glc (180°), c·tc,
and what radius of turn.
If radius of turn was not observable,
how l ong di d the t arget stay i
the turn a.'ld what was its spt:cd:
c.
~otc particularly any scpru-ction of distant tLrgct into s veral
t t~rgcts upon approach:
d.
~las radar blip on ca thode ray tube .;ell defined and consistent with
size of object ; fai nt: L,ding, pulsating at r egul.;.r rate:
Did radar echo signal disappear uddcnly or gradually?
2.
If airbour.?1c 1 when object wc.s sighted
a.
Were ther e cny r ndar indicati ons or extra noi~c on radio circuits:
b.
Give cstimc.tcs of size, speed, maneuvers, etc.:
1.
Tel etype sequences of loccl wc~ther conditions:
2.
'ilinds aloft r eport: