Events
Project Sign's 'Estimate of the Situation' (1948): reported rejection and destruction
Unproven Handling What these labels mean →Per Edward Ruppelt (Blue Book chief, 1956), Project Sign's 1948 'Estimate of the Situation' concluded the saucers were interplanetary. Gen. Hoyt Vandenberg rejected it and copies were ordered destroyed. No copy has surfaced; the Air Force has not produced one.
Ties
| To | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Suppression pattern | case: DESTROY/MISSING | 1948 | Documented · occurred Handling | en.wikipedia.org |
| Report 01 - UAP program records | chapter 1 | 1948 | Structural | |
| Project Blue Book | predecessor program | 1948 | Documented · occurred |
Tied from
| From | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Suppression pattern | case: DESTROY/MISSING | 1948 | Documented · occurred Handling | |
| Kenneth Arnold sighting (1947) | the next step in the same internal chain | 1948 | Documented · occurred |
Links
Alleged
| Item | Source | Tag |
|---|---|---|
| Estimate concluded 'interplanetary' | Ruppelt, Report on UFOs (1956) | Ruppelt account |
How it was handled
| Method | What happened | Tag |
|---|---|---|
| DESTROY/MISSING | Copies reportedly ordered destroyed; none produced to date | missing record |
Gaps
- FOIA #21 (any trace of the 1948 Estimate).