Bell YOH-4
type: Thing
alternate name: D-250
alternate name: YHO-4
alternate name: Bell YHO-4
alternate name: Bell Design 250
alternate name: Bell D-250
alternate name: Model 206
description: 1962 helicopter prototype model by Bell Helicopter
additional property: PropertyValue
  property ID: P18
  value: Oh4a002.jpg
additional property: PropertyValue
  property ID: P31
  value: aircraft model
additional property: PropertyValue
  property ID: P137
  value: United States Army
additional property: PropertyValue
  property ID: P176
  value: Bell Textron
additional property: PropertyValue
  property ID: P279
  value: observation helicopter
additional property: PropertyValue
  property ID: P279
  value: experimental aircraft
additional property: PropertyValue
  property ID: P373
  value: Bell YOH-4
additional property: PropertyValue
  property ID: P495
  value: United States
additional property: PropertyValue
  property ID: P606
  value: December 8, 1962
additional property: PropertyValue
  property ID: P646
  value: /m/043v0h3
additional property: PropertyValue
  property ID: P1092
  value: +5
additional property: PropertyValue
  property ID: P1343
  value: U.S. Army Aircraft Since 1947
additional property: PropertyValue
  property ID: P2043
  value: +11.79
additional property: PropertyValue
  property ID: P2048
  value: +2.69
additional property: PropertyValue
  property ID: P2073
  value: +455
additional property: PropertyValue
  property ID: P2581
  value: 03770092n
confidence:
  popularity graph score:
    score: 0.01
    score pct: 1
    tier: long_tail
    components:
      sitelinks: 12
      sitelinks norm: 0.028
      unique citations: 2
      unique citations norm: 0.001
      monthly pageviews: 275
      monthly pageviews norm: 0.0
  sitelinks: 12
  unique citations: 2
  monthly pageviews: 275
  yearly pageviews: 440
  pageview trend:
    m: 2026-07
    v: 275
  pageview trend:
    m: 2026-06
    v: 69
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-05
    v: 29
  pageview trend:
    m: 2026-05
    v: 3
  pageview trend:
    m: 2026-04
    v: 62
  pageview trend:
    m: 2026-04
    v: 1
  popularity:
    sitelinks: 12
    max: 423
    pct: 2.8
  tier: long_tail
claims:
  P18:
    value: Oh4a002.jpg
    source count: 1
    confidence: 0.2
  P31:
    value: Q15056995
    source count: 0
    confidence: 0.0
    value label: aircraft model
  P137:
    value: Q9212
    source count: 1
    confidence: 0.2
    value label: United States Army
  P176:
    value: Q815723
    source count: 1
    confidence: 0.2
    value label: Bell Textron
  P279:
    value: Q93419842
    source count: 0
    confidence: 0.0
    value label: observation helicopter
  P279:
    value: Q1384417
    source count: 0
    confidence: 0.0
    value label: experimental aircraft
  P373:
    value: Bell YOH-4
    source count: 0
    confidence: 0.0
  P495:
    value: Q30
    source count: 0
    confidence: 0.0
    value label: United States
  P606:
    value: +1962-12-08T00:00:00Z
    source count: 1
    confidence: 0.2
  P646:
    value: /m/043v0h3
    source count: 0
    confidence: 0.0
  P1092:
    value:
      amount: +5
    source count: 1
    confidence: 0.2
  P1343:
    value: Q105553882
    source count: 1
    confidence: 0.2
    value label: U.S. Army Aircraft Since 1947
  P2043:
    value:
      unit: Q11573
      amount: +11.79
    source count: 1
    confidence: 0.2
  P2048:
    value:
      unit: Q11573
      amount: +2.69
    source count: 1
    confidence: 0.2
  P2073:
    value:
      unit: Q828224
      amount: +455
    source count: 1
    confidence: 0.2
  P2581:
    value: 03770092n
    source count: 1
    confidence: 0.2
citations:
  source: U.S. Army Aircraft Since 1947
  stated in qid: Q105553882
citations:
  source: BabelNet
  stated in qid: Q4837690
meta:
  wikidata id: Q4883303
  domain: aircraft_model
  level: standard
  html url: https://4ort.xyz/entity/bell-yoh-4
  markdown url: https://4ort.xyz/entity/bell-yoh-4.md
  facts url summary: https://4ort.xyz/entity/bell-yoh-4/facts.json
  facts url standard: https://4ort.xyz/entity/bell-yoh-4/facts.json
  facts url full: https://4ort.xyz/entity/bell-yoh-4/facts.json
  data source: Wikidata (CC0 / public domain)
  license: https://creativecommons.org/publicdomain/zero/1.0/
  api version: v1
  served at: 2026-08-23T23:21:08.556068Z
  entity updated at: 2026-05-03T21:19:00.258443+00:00Z
  entity created at: 2026-04-10T23:58:27.631677+00:00Z