# July 26, 1952 — Williams, CA — F-94 Intercept with ADC Detection

**URL:** <https://uapdiscovery.discourse.group/t/july-26-1952-williams-ca-f-94-intercept-with-adc-detection/276>\
**Category:** Blue Book Unknowns\
**Created:** [July 26, 2025, 1:22am UTC](https://uapdiscovery.discourse.group/t/july-26-1952-williams-ca-f-94-intercept-with-adc-detection/276 "2025-07-26T01:22:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![jeffknox](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)\
**Post date:** [July 26, 2025, 1:22am UTC](https://uapdiscovery.discourse.group/t/july-26-1952-williams-ca-f-94-intercept-with-adc-detection/276/1 "2025-07-26T01:22:34Z")

</div>

![07261952-WilliamsCA-Lockheed_YF-97_Starfire_(sn_50-955)](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/9/9bbcd41aedd858ba601daccb68d6fe62f8d23dbe.jpeg)

July 26, 1952 — Williams, CA  
5:15 p.m. Air Defense Command radar detects a UFO over Williams, California. An F-94 jet interceptor is scrambled and locks onto the object with its radar. The crew sees a yellow-orange light. As confirmed by ground and airborne radar, the UFO plays tag with the F-94, alternately accelerating away when it gets close, then slowing down until it catches up again. [Eberhart]

Sources:  
Brad Sparks, Blue Book Unknowns Catalogue, Case 726, p. 158;

 ![07261952-WilliamsCA-Sparks-Case726-p158](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/0/0ba60596538a185f03e6cc9af918d8121a9cb68f.png)

Kevin D. Randle, Invasion Washington: UFOs over the Capitol, HarperTorch, 2001, p. 67;

 ![07261952-WilliamsCA-Randle-p67](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/c/c88d4b06be59713b6618f0325e64561c893c0490.png)

Edward Ruppelt, The Report on Unidentified Flying Objects, pp. 167-168;

 ![07261952-WilliamsCA-Ruppelt-p167](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/5/51cfb31812c719b1d8524b0f4f6f04909a143292.png)  
 ![07261952-WilliamsCA-Ruppelt-p168](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/a/a9b745d1996cd4d56bf3ad2188db35a8316fd424.png)

NICAP, “F-94 Intercept with ADC Detection”;

> **[UFO Report](http://www.nicap.org/520726williams_dir.htm)**