July 24, 1949 — Mountain Home, ID
12:03 p.m. Harry F. Clark, manager of a flying service, is flying a Piper PA-16 Clipper at 19,000 feet 10 miles northwest of Mountain Home, Idaho, when he sees a tight formation of 7 delta-shaped objects, 35–55 feet in diameter near his plane. They make a perfect and unbanked right turn 1,500 feet ahead of his plane, then they turn right again, passing the aircraft at about 450–500 mph. Clark’s engine runs rough during the sighting, which lasts 10 minutes. After he lands, he finds all his spark plugs burned out. When the Air Force investigates the case, they request the spark plugs. [Eberhart]
Record Card:
Incident 410:
Incident 410 Report:
Sketches from BB:
Sources:
Dave Johnson, “Pilot Spots Weird V-Shaped Objects Flying over Mountain Home Desert,” Boise Idaho Daily Statesman, July 25, 1949, pp. 1–2;
“First It was Flying Saucers ,Now V’s Strafe Idaho Pilot,” Tyler (Tex.) Morning Telegraph, July 25, 1949;
Brad Sparks, Blue Books Unknowns Catalogue, Case 254, p. 68;
Robert Powell, UFOs: A Scientist Explains What We Know (And Don’t Know), 2024, pp. 84–85;
NICAP, “Piper Clipper Encounters Seven Delta-Shaped Objects”;
Curt Collins, “Triangular UFO Formation in Idaho, July 24, 1949,” The Saucers That Time Forgot, October 12, 2023;