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Bell HSL
Photo: Department of the U.S. Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
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BellHSL

Naval Helicopters · United States · 1957
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BellHSL

Bell HSL
Bell HSL Photo: Department of the U.S. Navy · Wikimedia Commons · Public domain Use of this image does not imply endorsement by the U.S. Department of Defense (DoD).
MASS (Military Archive Scoring System) 41
* Absolute score — assessed within category · no era adjustment
ASW Capability
45
Sensors
40
Anti-Surface Capability
30
Range & Endurance
35
Shipboard Suitability
50
Versatility
30
Reliability
55
Survivability
40
Technology
45
Cost-Effectiveness
50
Methodology ↗ → Naval Helicopters ranking
Origin United States
ManufacturerBell Aircraft Corporation
CategoryNaval Helicopters
EraEarly Cold War
In service1957
Operators1 countries
Quantity53
⬇ Overview
⚙ Specs
⊕ History
⊕ Operators
⚖ MASS Score
📚 Sources
Data Quality84%
MASS(Military Archive Scoring System)
⊟ Naval Helicoptersranking ↗methodology ↗
41
Naval Helicopters MASS Rating
1/1
Early Cold War
3/5
All-Time
Naval Helicopters · 10 axes scored
ASW Capability
45
Sensors
40
Anti-Surface Capability
30
Range & Endurance
35
Shipboard Suitability
50
Versatility
30
Reliability
55
Survivability
40
Technology
45
Cost-Effectiveness
50
ⓘ Regardless of era, the same scoring system applies to all units in the naval helicopters category.
01 / Overview
Bell HSL
Category
Naval Helicopters
Country
United States
Prime contractor
Bell Aircraft Corporation
Production
1957–
Quantity
53
Operators
1 countries
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
NAVAL HELICOPTERS · EARLY COLD WAR
1
PERFORMANCE/PRICE
55
UNIT COST (2025 USD)
—
MASS SCORE ↗
41
naval helicopters category
ⓘ Performance/Price and MASS score are computed across all units in the naval helicopters category, regardless of era.
02 / Specs & Design
◎General1MOD.1
  • Crew4
◈Powerplant2MOD.2
  • Engine TypePratt & Whitney R-2800-50
  • Number of Engines1
▣Performance4MOD.4
  • Top Speed199.541 km/h
  • Cruise Speed154.483 km/h
  • Service Ceiling4,389.12 m
  • Rate of Climb7.493 m/s
◇Dimensions & Weights3MOD.3
  • Fuselage Length11.887 m
  • Height4.267 m
  • Max Takeoff Weight12,020.4 kg
◆Production1MOD.1
  • Total Built53
03 / History
SERVICE LIFESPANStill in Service
  1. 1957Production started
69
years in service
53
units produced
1
countries operating
ⓘ The producing country still actively operates it.
04 / Operators
Operator Countries1country
United StatesACTIVE
Naval Helicopters Early Cold War United States Bell Aircraft Corporation
📚 Sources
📖 ENCYCLOPEDIA Browse the Naval Helicopters entry →