However, according to Air Force officer Edward J. Ruppelt, who would become the supervisor of the Air Force's Project Blue Book investigation into the UFO mystery in 1951, "in 1950 there was no interest in the UFO, so after a quick viewing, Project Grudge had written them off as the reflections from two F-94 jet fighters that were in the area".
しかしながら、空軍士官エドワード J. ラッペルト (Edward J. Ruppelt) によれば、彼は1951年にUFOの謎の、空軍のプロジェクト・ブルーブック (Project Blue Book) のスーパーヴァイザーになるが、「1950年にUFOに関心はなかったので、すばやく見て、プロジェクト・グラッジ (Project Grudge) は地域に居たF-94ジェット戦闘機の反射として決めつけた」 ("in 1950 there was no interest  in the UFO, so after a quick viewing, Project Grudge had written them off as the reflections from two F-94 jet fighters that were in the area") 。