Document date 29 November 1971AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
FBI 164-81, Vault Part 90 p. 177 (DB Cooper-40174), Teletype, dated 29 Nov 1971, serial PD 164-41-74 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-90/pages/177
The scan is the source; the transcript is machine-generated from it.
FD-36 (Rev. 5-22-64)
FBI
Date: 11/29/71
Transmit the following in _________ PLAINTEXT
(Type in plaintext or code)
Via __TELETYPE__ _________ URGENT
(Priority)
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TO: SEATTLE (164-81)
FROM: PORTLAND (164-41) (P) 2 PAGES
UNSUB; NORTHWEST AIRLINES FLIGHT THREE ZERO FIVE, NOVEMBER
TWENTYFOUR, SEVENTYONE, CAA - HIGHJACKING; EXTORTION, OO:SEATTLE.
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RE SEATTLE TELETYPE TO PORTLAND, NOVEMBER TWENTYNINE, SEVENTY-
ONE; AND PORTLAND TELEPHONE CALL TO SEATTLE, SAME DATE.
[redacted line]
WAS CONTACTED AND ADVISED THAT A VOR RECEIVING DEVICE WOULD BE TOO
BULKY TO BE CARRIED ABOARD THE FLIGHT UNSEEN, AND DUE TO THE
TECHNICAL EFFORT OF THE DEVICE, IT WOULD PROBABLY REQUIRE A GOOD
DEAL OF TRAINING IN ORDER TO OPERATE IT. HE ADVISED TH[illegible] THE
SMALLEST MODEL OF THE VOR RECEIVING DEVICE IS TWO POINT SIX INCHES
BY THREE POINT TWO INCHES BY TEN POINT SEVEN IN LENGTH, WEIGHING
TWO POINT SEVEN POUNDS. SUCH A RECEIVER WOULD REQUIRE A TWELVE
VOLT BATTERY TO OPERATE PROPERLY, AND A HORIZONTAL - POLARIZED
ANTENNA APPROXIMATELY THREE FEET IN LENGTH WHICH WOULD EITHER HAVE
TO BE EXTENDED FROM THE AIRPLANE OR ATTACHED TO THE WINDOW IN A
VERTICAL POSITION.
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(1) Portland
RLB:kry
(Ap)proved: ___________
Special Agent in Charge
Sent 5:26 M Per [signature]
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004
b6
b7C
164-41-74
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U.S. GOVERNMENT PRINTING OFFICE: 1971-413-135
DB Cooper-40174