Project Sign Progress Report, 1948

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Authority:
NND927545
•
•I
HEADQUARTERS
AIR KATERI BL COWAND
MClA/JCB/amb
Wright-Patterson Air Force Base
KCIA
2DjytAPH
0i948
SUBJECT,
Projeot "BIOi" •
TOs
Chief of Staft
United Statea ilr Poree
Waahington 26, D. Co
ATTN s Director ot Int-,lligenoe
l. Thie ie an initial report on unidentified flying objecta aa
direoted by Rq, USAY letter dated SO Deoember 1947, signed by General
L. C. Craigie, subjeot1
•r1~Jng Diaea~. Qtarterly reports will be
submitted beginning 1 July 1948.
2. Ae a reeult of thia letter, Pro~ot HT-304 was a.otiTated on
26 January 1948 and Technical Inatruotion 2185, dated 11 Pebruaiy 1948,
wns published. Present ti.lea on Projeot •s10~• represent a oonaolida­
tion ot reports received directly by Hq, AMC and thoee forwa.rded by
the Direotor ot Intelligence, USAF.
~. Schedules of activities of lighted night-flying adTertising
blimps have been secured a.nd crosa-oheoked at thi.a Headquarters to
consider them as a possible souroe ot incident nporta.
4. Inoloaure l represents a tabulation am breakdoWll of all
available reports through l February 1948.
5o
The following ia a series of interesting observation• that
were noted when rev19Wing the many incident 0ase11
a. Rigll rate of olimb, aa well aa the apparent a.bi lity to
remain mot1onleu or hover for a oonBiderable length of tiu o
bo
The objeot was described aa being oval, d1ac or 1auoer-
t
ehaped ~l times.
o. Assooiated sound was preae?It ll tim.H o
d. Reported sizes have varied from that of a 26-oent pitoe
to 260 feet in diameter, and from the aise or a purauit plane to tht
ePulk of six B-29 airpl.&nea.
,
NND 927545