INTERESTING TIDBIT ABOUT: GENESIS OF BOYD’S OODA LOOP THEORY

John Richard Boyd (January 23, 1927 – March 9, 1997) was a United States Air Force fighter pilot and Pentagon consultant in the second half of the 20th century.

Boyd’s key concept was that of the decision cycle or OODA loop, the process by which an entity (either an individual or an organization) reacts to an event.

 

Genesis

In the era of 1950s air warfare, there was a peculiar anomaly. In dog fights between MiG-15s and F-86s, the plane that was expected to win (the MiG-15) constantly lost. To explore this, Colonel John Boyd (one of the best Air Force pilots in history) decided to research and get to the root of the situation. The question was, how could an inferior aircraft win so decisively?

 

 

Boyd’s Analysis: The reason, he concluded, was something that nobody had thought was particularly important. It was the fact that the F-86 Sabre had a hydraulic flight stick whereas the MiG-15 had a manual flight stick. Without hydraulics, it took slightly more physical energy to move the MiG-15 flight stick than it did the F-86 flight stick. Even though the MiG-15 would turn faster (or climb higher) once the stick was moved, the amount of energy it took to move the stick was greater for the MiG-15 pilot. With each iteration, the MiG-15 pilot grew a little more fatigued than the F-86 pilot. And as he got more fatigued, it took just a little bit longer to complete his OODA loop. The MiG-15 pilot didn’t lose because he got outfought. He lost because he got out-OODAed.

 

These insights lead us to Boyd’s Theory of OODA LOOP. In the aerial dogfight, the loop looks like this…

Observe the other aircraft

Orient yourself by analyzing the situation

Decide what to do

Act (steer or fire)

 

 

OODA Cycle Theory.

Boyd hypothesized that all intelligent organisms and organizations undergo a continuous cycle of interaction with their environment. Boyd breaks this cycle down to four interrelated and overlapping processes through which one cycles continuously:

  • Observation: the collection of data by means of the senses
  • Orientation: the analysis and synthesis of data to form one’s current mental perspective
  • Decision: the determination of a course of action based on one’s current mental perspective
  • Action: the physical playing-out of decisions

 

This decision cycle is thus known as the OODA loop. Boyd theorized that large organizations such as corporations, governments, or militaries possessed a hierarchy of OODA loops at tactical, grand-tactical (operational art), and strategic levels. It is relevant to any kind of competitive environment: business, politics, sports, even the struggle of organisms to survive.

 

References:

https://www.linkedin.com/pulse/research-reveals-four-steps-learn-faster-better-than-everyone

https://en.wikipedia.org/wiki/John_Boyd_(military_strategist)

Pic Courtesy: https://online.visual-paradigm.com/knowledge/decision-analysis/what-is-ooda-loop/

 

THIRD GENERATION FIGHTER AIRCRAFT

Categorization of fighter jets in generations is a classification system used around the world. The basic classification into five generations is widely accepted and recognized. Some accounts have subdivided the 4th generation into 4 and 4.5, or 4+ and 4++.

 

Third generation jet fighters (early 1960s to 1970)

  • The Third generation of fighters were designed to be multirole fighters capable of performing both air defense and ground attack missions. They could carry a wide range of weapons and other ordnance such as air-to-ground missiles and laser-guided bombs, while also able to engage in air-to-air interception beyond visual range.

 

  • These aircraft were capable of sustained supersonic flight, carried improved fire control radars and semi-active air-to-air missiles and the first generation of tactical electronic warfare systems.

 

 

  • The advent of more economical turbofan engines brought extended range and sortie times, increased thrust, better performance and maneuverability. Some designers even resorted to variable geometry or vectored thrust.

 

  • This generation witnessed significant enhancements in the avionic suites and weapon The supporting avionics included pulse-doppler radar, off-sight targeting and terrain-warning systems. Doppler radar supported a ‘lookdown/shoot-down’ capability, and with off-bore-sight targeting and semi-active guided radio frequency missiles.

 

  • The major change brought about by this generation aircraft was that it was no longer necessary to visually acquire opponents to neutralize them.

 

According to available sources, fighters in this generation include the following:-

  • McDonnell Douglas F4H (F-4) Phantom II
  • Northrop F-5 Freedom Fighter / Tiger II
  • Mikoyan Gurevich MiG-23
  • Mikoyan Gurevich MiG-25
  • Sukhoi Su-15
  • Sukhoi Su-17/20/22
  • Tupolev Tu-28P
  • Yakovlev Yak-28
  • British Aerospace Harrier
  • Dassault Mirage F.1
  • Dassault Super Etendard
  • Shenyang J-8II

 

 

Coming Up: Generation wise description (4th to 6th)

References:

https://www.airforce-technology.com/features/top-sixth-generation-fighter-jets/

https://www.sldinfo.com/wp-content/uploads/2014/05/Air-Combat-Seminar-summary-AndrewMcL.pdf

https://www.fighterworld.com.au/az-of-fighter-aircraft/five-generations-of-jets

http://www.codeonemagazine.com/archives/2005/articles/oct_05/

https://en.wikipedia.org/wiki/Fifth_generation_fighter

https://www.airforce-technology.com/features/top-sixth-generation-fighter-jets/?utm_source=Army%20Technology&utm_medium=website&utm_campaign=Must%20Read&utm_content=Image

https://migflug.com/jetflights/fighter-jet-generations/

http://www.aerospaceweb.org/question/history/q0182.shtml

 

Comments and value additions are most welcome

SECOND GENERATION FIGHTER AIRCRAFT

Categorization of fighter jets in generations is a classification system used around the world. The basic classification into five generations is widely accepted and recognized. Some accounts have subdivided the 4th generation into 4 and 4.5, or 4+ and 4++.

 

Second generation jet fighters (mid-1950s to early 1960s)

  • The second generation of fighter jets was a result of technological breakthroughs and experience gained during aerial warfare (mainly The Korean War of 1950-1953).

 

  • The main features included higher speed (sustained transonic and supersonic dash capabilities), rudimentary fire control radar, and use of the guided air-to-air missiles.

 

 

  • This generation’s fighters also incorporated advances in engine design (afterburners) and aerodynamics (swept wings), which allowed them to reach and sustain supersonic speeds in level flight.

 

 

  • The second generation fighters saw the introduction of air-to-air radar, infrared and semi-active guided missiles, as well as radar warning receivers.

 

  • During this period, although air-to-air combat was still within visual range, radar-guided missiles started to extend the engagement ranges and accuracy.

 

  • The aircraft got divided according to the roles into Interceptors (e.g. MiG-21F, SU-9, F-106) and fighter-bombers (e.g. F-105, SU-7) providing air superiority and ground attack.

 

According to available sources, fighters in this generation include the following:-

  • North American F-100 Super Sabre
  • McDonnell F-101 Voodoo
  • Convair F-102 Delta Dagger
  • Lockheed F-104 Starfighter
  • Republic F-105 Thunderchief
  • Convair F-106 Delta Dart
  • Vought F8U (F-8) Crusader
  • Grumman F11F (F-11) Tiger
  • Mikoyan Gurevich MiG-19
  • Mikoyan Gurevich MiG-21
  • Sukhoi Su-9 / Su-11
  • Yakovlev Yak-25
  • BAC Lightning
  • de Havilland Sea Vixen
  • Gloster Javelin
  • Hawker Hunter
  • Supermarine Scimitar
  • Dassault Etendard
  • Dassault Mirage III
  • Saab Draken

Coming Up: Generation wise (3rd – 6th) description

References:

https://www.airforce-technology.com/features/top-sixth-generation-fighter-jets/

https://www.sldinfo.com/wp-content/uploads/2014/05/Air-Combat-Seminar-summary-AndrewMcL.pdf

https://www.fighterworld.com.au/az-of-fighter-aircraft/five-generations-of-jets

http://www.codeonemagazine.com/archives/2005/articles/oct_05/

https://en.wikipedia.org/wiki/Fifth_generation_fighter

https://www.airforce-technology.com/features/top-sixth-generation-fighter-jets/?utm_source=Army%20Technology&utm_medium=website&utm_campaign=Must%20Read&utm_content=Image

https://migflug.com/jetflights/fighter-jet-generations/

http://www.aerospaceweb.org/question/history/q0182.shtml

 

Comments and value additions are most welcome