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Within Mission Logistics

How Many People Would 23 Helicopters Need?

Minimum flight crews alone imply about 69 people, while maintenance, fuel and command support would raise the total substantially.

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Preview for How Many People Would 23 Helicopters Need?

On this page

  • Minimum aircrew and possible additional crew roles
  • Maintenance, fuel and operations personnel
  • Why a large workforce increases detectability

Introduction

One of the most practical ways to assess the Cash–Landrum incident’s claim of approximately 23 military helicopters is to ask how many people such a mission would actually require. Even using the most conservative assumptions, the answer extends far beyond the pilots seen in the air. A formation of 23 heavy military helicopters would require at least dozens of flight crew members, backed by maintainers, fuel specialists, operations staff, communications personnel and commanders. The total workforce supporting such a mission would almost certainly number well into the hundreds if the aircraft were assembled, launched and recovered through normal military procedures. This personnel requirement matters because an operation involving so many people becomes increasingly difficult to conceal and is more likely to leave administrative, maintenance and eyewitness traces.

Personnel Scale illustration 1
Explanatory illustration 1

Minimum Aircrew: Around 69 People Before Any Ground Support

If the reported helicopters were primarily CH-47 Chinooks, the minimum flying crew provides a useful baseline. The U.S. Army specifies a minimum crew of three for a CH-47: a pilot, co-pilot and flight engineer.[Army]army.milch 47 chinook helicopterCH-47 CHINOOK HELICOPTERNovember 4, 2014…Published: November 4, 2014

Applying that minimum across 23 helicopters produces:

  • 23 aircraft × 3 crew members = 69 airborne personnel
  • This assumes every aircraft flew with only its minimum authorised crew.
  • It excludes commanders flying in other aircraft, mission observers, additional crew chiefs or any personnel carried as passengers.

In practice, many military helicopter missions include additional specialists depending on the aircraft’s role. Transport helicopters may carry loadmasters, door gunners in some operational environments, instructors, evaluators or maintenance personnel repositioning between bases. Consequently, an airborne contingent of 70–100 people would not be unusual for a mission involving more than twenty heavy helicopters, depending on its purpose.[Army]army.milch 47 chinook helicopterCH-47 CHINOOK HELICOPTERNovember 4, 2014…Published: November 4, 2014

The exact number in December 1980 cannot be reconstructed because the alleged mission itself has never been documented. Nevertheless, the minimum crew calculation demonstrates that even the most conservative interpretation requires a substantial flying force.

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Maintenance, Fuel and Operations Personnel

The flight crews represent only part of the manpower required. Military helicopters demand extensive support before departure and after landing.

Army aviation doctrine assigns maintenance responsibilities across multiple specialist trades, including airframe repair, engines, transmissions, avionics, rotor systems and component repair. Aviation support organisations also include recovery teams, technical inspectors and maintenance supervisors responsible for certifying aircraft as fit to fly. Scheduled inspections can remove aircraft from service for extended periods, making aircraft availability itself an important planning factor.[army.mil]army.milSustaining Aviation | Ensure critical sustainment capabilities are not overlooked | Article | The United States ArmyJanuary 16, 2020…Published: January 16, 2020

Supporting a large helicopter launch also requires personnel responsible for:

  • Refuelling operations.
  • Flight planning and weather support.
  • Airfield operations.
  • Radio communications.
  • Tool control and spare parts.
  • Mission scheduling.
  • Ground movement and marshalling.
  • Command and control.

Army publications describing aviation support battalions illustrate the scale of these organisations. A single aviation support company can contain nearly 300 personnel dedicated to maintenance and sustainment, reflecting how labour-intensive helicopter operations are even when not every individual directly supports a single flight.[Army]army.milSustaining Aviation | Ensure critical sustainment capabilities are not overlooked | Article | The United States ArmyJanuary 16, 2020…Published: January 16, 2020

This does not mean a 23-helicopter mission would require 300 people standing beside the aircraft. Rather, it demonstrates that large helicopter operations rely on an extensive institutional support structure rather than only the visible flight crews.

Personnel Scale illustration 2
Explanatory illustration 2

Why a Large Workforce Increases Detectability

The personnel scale has important implications when evaluating claims associated with the Cash–Landrum incident.

Every additional aircraft increases the number of individuals who would ordinarily know about the mission, including:

  • Aircrew members.
  • Maintenance technicians.
  • Fuel handlers.
  • Operations officers.
  • Duty supervisors.
  • Air traffic or range personnel.
  • Logistics staff.
  • Base security personnel.

Large military missions also generate routine administrative records. Aircraft must normally be assigned, inspected, fuelled and released for flight. Maintenance actions, flight scheduling and crew assignments are documented through standard procedures designed to ensure safety and accountability. Technical manuals and Army maintenance policy treat these activities as formal processes rather than informal arrangements.[Chinook Helicopter]chinook-helicopter.comChinook Helicopter CH-47 Chinook helicopterChinook HelicopterCH-47 Chinook helicopter - Free Maintenance Manuals, Technical Manuals (TM), Study Guides, and other Publications…

As the number of aircraft grows, so does the number of records and potential witnesses. A formation involving roughly 23 helicopters would therefore be expected to leave evidence across multiple parts of an aviation organisation instead of depending solely on the recollections of individual pilots.

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What This Means for the Cash–Landrum Case

The personnel requirements do not prove whether the reported helicopters were present or absent. However, they provide a practical way to evaluate the logistical implications of the witnesses’ account.

A reported force of approximately 23 helicopters was not something that could realistically have been assembled by a handful of pilots acting independently. Even under the most conservative assumptions, the mission would have required at least 69 flight crew members. Once maintenance, fuelling, planning, command, communications and airfield support are considered, the total number of people involved would almost certainly have been substantially higher.

That organisational footprint is one reason investigators have regarded the reported helicopter formation as one of the most difficult elements of the Cash–Landrum account to reconcile with the absence of documented military activity matching such a large-scale aviation operation.

Personnel Scale illustration 3
Explanatory illustration 3

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Endnotes

1. Source: army.mil
Title: ch 47 chinook helicopter
Link:https://www.army.mil/article-amp/137584/ch_47_chinook_helicopter

Source snippet

CH-47 CHINOOK HELICOPTERNovember 4, 2014...

Published: November 4, 2014

2. Source: army.mil
Title: CH-47 CHINOOK HELICOPTER | Article | The United States Army
Link:https://www.army.mil/article/137584/ch_47_chinook_helicopter

Source snippet

CH-47 CHINOOK HELICOPTER | Article | The United States Army...

3. Source: army.mil
Title: The Chinook in LSCO | Article | The United States Army
Link:https://www.army.mil/article/288976/the_chinook_in_lsco

Source snippet

The conflict has seen renewed contest over the air littoral. The lower air littoral, in this case 200 feet and below, is largely where Uk...

4. Source: army.mil
Link:https://www.army.mil/article/231701/sustaining_aviation_ensure_critical_sustainment_capabilities_are_not_overlooked

Source snippet

Sustaining Aviation | Ensure critical sustainment capabilities are not overlooked | Article | The United States ArmyJanuary 16, 2020...

Published: January 16, 2020

5. Source: lineofdeparture.army.mil
Link:https://www.lineofdeparture.army.mil/Journals/Aviation-Digest/Aviation-Digest-October-December-2024/The-Role-of-the-Aviation-Support-Battalion/

6. Source: lineofdeparture.army.mil
Link:https://www.lineofdeparture.army.mil/Journals/Aviation-Digest/Aviation-Digest-January-March-2025/Hacking-Your-Aviation-Maintenance-Program/

7. Source: chinook-helicopter.com
Title: Chinook Helicopter CH-47 Chinook helicopter
Link:https://www.chinook-helicopter.com/Publications/Publications.html

Source snippet

Chinook HelicopterCH-47 Chinook helicopter - Free Maintenance Manuals, Technical Manuals (TM), Study Guides, and other Publications...

8. Source: army.mil
Title: the chinook in lsco
Link:https://www.army.mil/article-amp/288976/the_chinook_in_lsco

9. Source: chinook-helicopter.com
Title: For the folks at Pegasus, Maintenance drives the train
Link:https://www.chinook-helicopter.com/maintenance/maintenance.html

10. Source: army.mil
Link:https://www.army.mil/article/96140/Helicopter_loading_system_lightens_burden_on_Soldiers/

11. Source: army.mil
Link:https://www.army.mil/article/19738/resetting_after_deployment_helicopter_reset_program_ensures_aircraft_are_ready_to_fly_after_years_i

12. Source: chinook-helicopter.com
Title: Safety of Flight Message CH-47-05-01, Swashplate Rotating Ring
Link:https://www.chinook-helicopter.com/maintenance/CH-47_Maintenance_Messages/CH-47_SOF/0501_sof.htm

14. Source: youtube.com
Link:https://www.youtube.com/watch?v=KiCgBn-Kbho

Source snippet

Cash Landrum UFO 23 helicopters 1980 3 Witnesses. 23 Helicopters. [Radiation Sickness]({{ 'radiation-claim/' | relative_url }}). 🛸 Cash-Landrum 1980 #Shorts...

15. Source: boeing.com
Title: us army orders 6 more boeing chinook helicopters
Link:https://www.boeing.com/features/2026/04/us-army-orders-6-more-boeing-chinook-helicopters

Source snippet

April 16, 2026 — US ARMY ORDERS 6 MORE BOEING CHINOOK HELICOPTERS THE CH-47F BLOCK II CONTRACT SUPPORTS THE ARMY’S STRATEGY FOR GETTING C...

Published: April 16, 2026

16. Source: youtube.com
Link:https://www.youtube.com/watch?v=GjByxf7XOU0

Source snippet

The Cash-Landrum incident: traumatized & physically ill after terrifying UFO encounter, Dec 29, 1980...

17. Source: youtube.com
Link:https://www.youtube.com/watch?v=euP0SnHKfg8

Source snippet

The Terrifying Cash-Landrum Close UFO Encounter Incident in 1980...

18. Source: youtube.com
Link:https://www.youtube.com/watch?v=9YOEakuCxvA

Source snippet

Cash-Landrum 1980, Close Encounter UFO Incident - One Of the Most Important UFO Cases in History...

19. Source: youtube.com
Title: The Cash-Landrum Incident: 23 Helicopters and a Deadly UFO
Link:https://www.youtube.com/watch?v=0r5par-v67w

Source snippet

The Cash-Landrum Incident: A UFO Burned 3 People in Texas. The Government Said It Never Happened...

20. Source: cbo.gov
Link:https://www.cbo.gov/sites/default/files/cbofiles/ftpdocs/88xx/doc8865/chapter1.5.1.shtml

21. Source: cbo.gov
Title: The Cost of Replacing Today’s Army Aviation Fleet | Congressional Budget Office
Link:https://www.cbo.gov/publication/55180

22. Source: globalsecurity.org
Link:https://www.globalsecurity.org/military/library/policy/army/fm/1-113/CH10.HTM

23. Source: globalsecurity.org
Link:https://www.globalsecurity.org/military/library/policy/army/fm/3-04-500/ch2.htm