Boeing Model 299

E180654

The Boeing Model 299 was the prototype four‑engine heavy bomber that led to the development of the famed B-17 Flying Fortress used extensively by the United States during World War II.

All labels observed (1)

Label Occurrences
Boeing Model 299 canonical 1

How this entity was disambiguated

Statements (47)

Predicate Object
instanceOf four‑engine heavy bomber
prototype bomber aircraft
aircraftConfiguration low-wing monoplane
aircraftRole heavy bomber
airframeMaterial aluminum alloy
armamentType multiple machine guns
bombloadCapacity over 2,000 kg
competedAgainst Douglas DB-1
Martin Model 146
construction all-metal
countryOfOrigin United States of America
surface form: United States
crashCause takeoff accident due to control locks left engaged
crashDate 1935-10-30
crashLocation Wright-Patterson Air Force Base
surface form: Wright Field, Dayton, Ohio
crewSize 8
designer Boeing
surface form: Boeing design team
developedFor United States Army Air Corps
engineType piston engine
enteredCompetition United States Army Air Corps 1934 heavy bomber competition
era interwar period
fatalitiesInCrash 2
firstFlightDate 1935-07-28
firstFlightLocation King County International Airport
surface form: Boeing Field, Seattle, Washington
historicalSignificance first Boeing four‑engine heavy bomber prototype for the US Army Air Corps
influenced development of preflight checklists in aviation
landingGearType retractable tailwheel landing gear
ledToDevelopmentOf Boeing B-17 Flying Fortress
length approximately 68 ft
manufacturer Boeing
maximumSpeed over 230 mph
militaryDesignation XB-17
nicknamed Boeing B-17 Flying Fortress
surface form: Flying Fortress
nicknameOriginator Seattle Times
notableOutcome demonstrated feasibility of long‑range, high‑payload heavy bombers for the US
numberOfEngines 4
numberOfPrototypesBuilt 1
powerplantModel Pratt & Whitney Wasp radial engine
surface form: Pratt & Whitney R-1690 Hornet
propellerType variable-pitch propellers
range over 2,000 miles
status prototype only
successor Boeing B-17 Flying Fortress production variants
Boeing Fortress I
surface form: Boeing YB-17
tailConfiguration conventional single tail
testPilotOnFirstFlight Leslie R. Tower
usedIn evaluation and test flights only
wingspan approximately 103 ft
wingType cantilever wing

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Boeing B-17 Flying Fortress designOrigin Boeing Model 299