RADCAT Case Directory
  Category 9, RADAR  
Rating: 5  


RADCAT is a revitalized special project now being conducted jointly by NICAP & Project 1947 with the help and cooperation of the original compiler of RADCAT, Martin Shough, to create a comprehensive listing of radar cases with detailed documentation from all previous catalogues, including UFOCAT and original RADCAT.

The Fort Monmouth Radar Incident
Sept. 10, 1951
Fort Monmouth, New Jersey

Updates: Drafted 22 Nov 2000, Update 10 Aug 2006, RADCAT 30 April 2010
Dan Wilson:
September 10, 1951; Fort Monmouth, New Jersey
11:10 a.m. .Several unidentified objects were sighted by radar at Fort Monmouth, N.J. The objects varied in speed from 0 to 700 mph and were sighted at varying altitudes. The objects were observed on an AN/MPG-1 radar set. At 3:15 p.m. an object was observed on the SCR-584 radar set. The same day an unconventional object was sighted by crew of T-33 over Sandy Hook, N.J. The object disappeared out to sea near Asbury Park, New Jersey at an estimated speed of 1000 mph.

Fran Ridge:
Our thanks to everyone who did all the research on this monumental case. Especially to Mike Hall who provided all the original documentation, to both Wendy Connors & Mike Hall for the historical update, and to Robert Swiatek of FUFOR for the Ruppelt notes not used in his book.  Without our research efforts, which resulted from the T-33 pilot reports to the media, all we had was the GRUDGE Report and this final statement by Capt. Ruppelt: "The UFO that the student radar operator had assumed to be traveling at a terrific speed because he couldn't lock on to it turned out to be a 400-mile-an-hour conventional airplane. He had just gotten fouled up on his procedures for putting the radar set on automatic tracking. The sighting by the two officers in the T-33 jet fell apart when Metscher showed how they'd seen a balloon."  Brad Sparks analysis proves that the T-33 was NOT chasing a balloon. (See below).

Detailed reports and documents
The Fort Monmouth/Sandy Hook, N.J., UFO Incidents, Sept. 10, 1951 (Francis Ridge)
The Fort Monmouth Story - Too Many Coincidences (Captain Edward J. Ruppelt)
The Ruppelt Notes (c/o Robert Swiatek, FUFOR)
The Fort Monmouth Case: A New Look (Wendy Connors & Michael Hall)
ATIC Case File Map Showing Location of the Incident (Wendy Connors)
Desk Pad for September 1951 Showing Notes (Mike Hall)
Evaluation of the Fort Monmouth Incident (James E. McDonald)
Analysis Proves  T-33 Was Not Chasing A Balloon (Brad Sparks)
UFO Updates Rebuttal - Further Analysis (Brad Sparks)
Another Case Update (Brad Sparks)
Setting the Stage for Monmouth (Joel Carpenter)
UFO Intelligence Summary - July-Dec 1961 (Francis Ridge)
5 March 1952, Letter to CSI on Fort Monmouth Case

MAXW-PBB8-1269 - Aug-Sept BB Sighting Printout (Fran Ridge)
NARA-PBB89 1184-1185 - Memorandum for Mr. Levy - Release of Information (Dan Wilson)
MAXW-PBB8 1481-1482 - Ft. Monmouth Case / Violation of AFR 205-1 (Dan Wilson)
MAXW-PBB8 1520-1521 - Fort Monmouth Air Intelligence Information Report (Dan Wilson)
MAXW-PBB8 1531-1546 - Transcript of Investigation of Fort Monmouth Sightings (Dan Wilson)
MAXW-PBB9 161-162 - Sept. 10, 1951, Fort Monmouth, Several Objects Sighted (Dan Wilson)
MAXW-PBB9 164-173 - Fort Monmouth & Sandy Hook Witnesses (Dan Wilson)
MAXW-PBB9 180 - General Information, Weather for Fort Monmouth (Dan Wilson)
MAXW-PBB9 183-186 - Statements From Members of the Radar Training Detachment, Ft. Monmouth (Dan Wilson)
MAXW-PBB9 189 - EADF Reply Concerning Unusual Occurrences at Fort Monmouth (Dan Wilson)
MAXW-PBB9 198 - ADC Requests Full Evaluation of Observations Near Asbury Park (Dan Wilson)
FBI - Confidential Report on Fort Monmouth Radar Incident - Pages 31-34 (Dan Wilson)

Sandy Hook Incident
NARA-PBB89 434 - Jet Chases Weird Object 30 Miles - Washington Daily News (Dan Wilson)
NARA-PBB85 540-548 - GRUDGE Special Status Report No. 1 / Fort Monmouth [T-33] Incident  (Dan Wilson)
NARA-PBB89 1174-1175 - Balloon Releases from Fort Monmouth (Dan Wilson)
NARA-PBB89 1177-1182 - Newspaper Release Concerning UFO - 11 Sep 1951 (Dan Wilson)
NARA-PBB89 1186 - Memorandum for Mr. Levy - Release of Information to the Press (Dan Wilson)
NARA-PBB89 1189 - Maj. Barron Released Certain Information to the Press (Dan Wilson)
NARA-PBB89 1194-1198 - Report of Telephone Conversation / Fort Monmouth Incident (Dan Wilson)
NARA-PBB89 1199-1201 - Airmen Overheard In Diner, Unusual Object Sighted (Fran Ridge)
NARA-PBB89 1207-1208 - AIIR, Sept 10, 1951, Sandy Hook (Dan Wilson)
NARA-PBB89 1209 - Statement of Wilbert S. Rogers - Dan Wilson
MAXW-PBB9 203-205 - Interrogation of Rogers and Ballard - Dan Wilson
MAXW-PBB8 1466-1471 - Sept. 10, 1951, Sandy Hook, NJ / Re: Ft. Monmouth - Dan Wilson
MAXW-PBB8 1501-1502 - Message to JEDWP/CG ADC Wright Patterson AFB, Dayton, Ohio - Dan Wilson
MAXW-PBB8 1503-1504 - Reporting of Information on Unconventional Aircraft / Sandy Hook, NJ - Dan Wilson
MAXW-PBB8 1505-1508 - Col. Taylor Making Quick Trip to Washington - Dan Wilson
MAXW-PBB8 1510 - Pilot Says He Saw Odd Object Speed Over Coast at 900 M.P.H. - Dan Wilson
MAXW-PBB8 1511-1512 - Statements on UFO Sighting Over Sandy Hook - Dan Wilson
Incoming Classified Message - RADNOTE - Report and Analysis of Fort Monmouth Incident - Dan Wilson

Other News Clippings
2 in Jet Chase 'Flying Saucer' Going 900 M.P.H. Over New Jersey
Pilots See 900-MPH 'Saucer' In Flight Over Coast of New Jersey
Mystery 'disc' spotted over N.J.
Pilot Says He Saw Odd Object Speed Over Coast at 900 M.P.H.
900 MPH 'Disc' Chased Over N.J.
Here's That Flying Saucer Again -- 2 AF Jet Pilots Lose It At 900 MPH
450 MPH Jet Tails 900 MPH 'Thing' Over N.J.

The T-33 Jet Trainer

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