Case evidence · CE-V86-10
Capt. Thomas Mantell's fatal F-51 pursuit; Project Sign and Blue Book evaluations
DocumentedThe record itself is established. 1948-01-07 · Blue Book file / accident record
Why this grade
Documented From Case Evidence's Verification status ("Death documented; Skyhook balloon most cited"). Grade rules.
Record
- Date / period
- 1948-01-07
- Reported event / document
- Capt. Thomas Mantell's fatal F-51 pursuit; Project Sign and Blue Book evaluations
- Evidence type
- Blue Book file / accident record
- Original data accessible?
- Yes (NARA microfilm)
- Verification status
- Death documented; Skyhook balloon most cited
- Competing explanations / missing data
- Specific balloon launch match contested
- Next step
- Confirm Skyhook launch records
- Source ID
- SRC-V86-31; SRC-V86-32
From the workbook: the Case Evidence sheet.