CACrown ArchivesThe cinema collection
Menu
Research dossier · Places & Architecture

Nine-O-Nine

Boeing B-17G Flying Fortress bomber

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJan 23, 2026
Entity authorityQ7038247
Source-derived summary

Nine-O-Nine was a Boeing B-17G-30-BO Flying Fortress heavy bomber, of the 323d Bombardment Squadron, 91st Bombardment Group, that completed 140 combat missions during World War II, believed to be the Eighth Air Force record for most missions without loss to the crews that flew it. A different B-17G, painted to mimic the Nine-O-Nine, crashed at Bradley International Airport in Windsor Locks, Connecticut, in October 2019.

Service history

The original aircraft, from a group of 30 B-17Gs manufactured by Boeing, was nicknamed after the last three digits of its serial number: 42-31909. Nine-O-Nine was added to the USAAF inventory on December 15, 1943, and flown overseas on February 5, 1944. After depot modifications, it was delivered to the 91st BG at RAF Bassingbourn, England, on February 24, 1944, as a replacement aircraft, one of the last B-17s received in factory-applied camouflage paint.

A former navigator of the 91st BG, Marion Havelaar, reported in his history of the group that Nine-O-Nine completed either 126 or 132 consecutive missions without aborting for mechanical reasons, also believed to be a record. M/Sgt. Rollin L. Davis, maintenance line chief of the bomber, received the Bronze Star for his role in achieving the record.

The aircraft's first use in a bombing raid was over Augsburg, Germany, on February 25, 1944. It was used for 18 bombing raids on Berlin.

Editorial summary

This brief starts where responsible research should: with the source description of “Nine-O-Nine” as boeing B-17G Flying Fortress bomber. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewMost useful as a place-based finding aid connecting the present description to earlier jurisdictions, maps and built evidence. The current lead gives the account dated anchors—2019, 1943, 1944—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Nine-O-Nine, Boeing and B-17G can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the places & architecture register because the source frames it as boeing B-17G Flying Fortress bomber. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Jan 23, 2026. The linked authority identifier is Q7038247. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2019, 1943 and 1944.

Critical limits

Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Nine-O-Nine”, its source revision and the description used here.
  2. Expand the search: follow Nine-O-Nine primary sources, Nine-O-Nine archive and Nine-O-Nine research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Nine-O-Nine”?
  2. Which earlier names or jurisdictions may reveal additional records?
  3. Which authority defined the place, boundary or structure at the relevant date?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from Nine-O-Nine” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.