Naval Historywith Dr. Alex

Topic

Oerlikon 20 mm

Also searchable as 20 mm Oerlikon.

Related time notes

  1. Tribal to Weapon: The history of the Royal Navy's WWII Destroyer choices
    51:20Standard armament in the S and T emergency flotillasChapter
  2. Tribal to Weapon: The history of the Royal Navy's WWII Destroyer choices
    1:05:05The W and Z classes' guns, radar and close-range defenceChapter
  3. Bruships 262: Naval History Questions Answered Live
    1:29:46Anti-aircraft choices when reliability is reversedQ&A
  4. USN Destroyers Fletcher to Gearings
    9:05Fletcher guns, torpedoes, range, and machineryChapter
  5. USN Destroyers Fletcher to Gearings
    9:59Crew recollections describe extra light antiaircraft weaponsNotable Point
  6. USN Destroyers Fletcher to Gearings
    27:38Sumner armament and enduranceChapter
  7. Air Defence At Sea: From Air Ships in 1906, to drones in 2026 and everything in between...
    2:42:04Sea Sparrow, guns and the 1976 defence layersChapter
  8. What if Britain joined with Australian & Canada to build a 'Maximum' Invincible Class instead?
    31:34Layered air defence and different gun rangesNotable Point
  9. Bruships 257: Alternate History & Naval History Questions Answered Live...
    2:58:16A motor gun boat could defeat Trafalgar's sailing fleetQ&A
  10. Bruships 257: Alternate History & Naval History Questions Answered Live...
    4:12:23Alaska remains useful with an early-war anti-aircraft batteryQ&A
  11. America goes Big Cruiser in the 1930s: Ending the Naval Treaties for the Alaska Class
    16:34Armament suited to a large carrier escortNotable Point
  12. What happens if WWII took place as scheduled... after 1942? (Patreon)
    4:12:37Would 20 mm guns replace British half-inch machine guns?Q&A
  13. What happens if WWII took place as scheduled... after 1942? (Patreon)
    4:37:31Would a naval Skink-style mounting be useful?Q&A
  14. Bruships 249: Modern Navy & Naval History Questions Answered Live...
    4:12:21A possible G3 battlecruiser anti-aircraft outfitQ&A
  15. HMS Walker(D27); a destroyer of two World Wars(Live)
    1:16:16Walker's long-range escort conversionChapter
  16. Historiophon 2025: part 5 of 9 - Royal Navy & Royal Marines Charity, The Royal Navy Benevolent Trust
    2:09:13The light AA objection to an automatic-gun Edinburgh refitQ&A
  17. Bruships 208: What if Naval History Questions Answered Live...
    2:30:03An earlier Royal Navy adoption of the OerlikonQ&A
  18. Bruships 199: What if Naval History Questions Answered Live...
    3:40:53A reliable Chicago Piano still leaves a need for 40 mm gunsQ&A
  19. 40mm AA in WWII: Pom-Pom or Bofors? how did the two systems compare in theory and practice?
    2:58:53Where the 20 mm Oerlikon fitted beneath 40 mm gunsQ&A
  20. Frigating in WWII for the Allies: HMAS Diamantina & the River Class Frigates
    45:56Diamantina's convoy-defense weapons fitChapter
  21. Bruships 174: Ten Days to Christmas... have I got the lights up yet?
    50:20Why the Oerlikon suited ships better than the HispanoQ&A
  22. Jellicoe as 3rd Sea Lord, Essay Competion & WoW Collab: Last 9 of the 36hr Historiophon Part 4/4
    5:31:28A sextuple Oerlikon and the limits of close-range AAQ&A
  23. The Backbone of Royal Navy Interwar Aviation, HMS Eagle(1918)! Key Ship Series 6 Ship 7
    1:12:49Radar and close-range air defence reshape Eagle's final refitChapter
  24. Bruships 159: New Office - This may be quick, discord may work & I may not have a Pneumonia attack!
    1:58:16Mixed 40 mm systems complicate a warship's ammunition supplyQ&A
  25. Carriers of the Planned War Fleets: How Shokaku, Implacables & Essexs reflect their Navys Doctrines
    41:53Implacable's anti-aircraft batteries and uncertain countsNotable Point
  26. USS Midway is it magic or surviable? Key Ships Series 9: Ship 1
    16:48Machinery, weapons, and strength-deck designNotable Point
  27. Glen Class: An Insight into Landing Ship Infantry - Key Ships Series 8, Ship 3
    29:15Glen-class troop lift, landing craft, speed, and gunsChapter
  28. Bruships(Christmas Eve): Naval History Questions answered till the Bru runs out!
    3:21:27Destroyers and cruisers suit the Mark 146 AA mountQ&A
  29. Bruships(Christmas Eve): Naval History Questions answered till the Bru runs out!
    3:22:18An early Mark 146 would replace quad Vickers mounts fleetwideQ&A
  30. Bruships(Christmas Eve): Naval History Questions answered till the Bru runs out!
    3:28:16Bofors and pom-pom strengths matched different air-war environmentsQ&A
  31. Landing Ship Tanks Mk1s: The First Attempts to Get Troops Ashore - Key Ships Series 7 Ship 3
    9:08Lake tankers become Maracaibo-class landing shipsChapter
  32. Why WWII evolved Motor Torpedo Boats in Motor Gun Boats: Pacific, Black Sea & Baltic Designs
    43:02PT-658 left the factory as a heavily armed gunboatNotable Point
  33. Why WWII evolved Motor Torpedo Boats in Motor Gun Boats: Pacific, Black Sea & Baltic Designs
    1:43:04The D-3: from failed prototypes to a usable boatNotable Point
  34. How & Why during WWII MTBs became MGBs: European & Mediterranean Theatre
    1:25:20Fairmile B scale and the logistics of crew modificationsNotable Point
  35. How & Why during WWII MTBs became MGBs: European & Mediterranean Theatre
    1:33:13Fairmile C: the motor gun boat arrivesNotable Point
  36. Black Swan Class: The F-22 of WWII ASW? - Key Ships Series 6, Episode 2
    12:25Gun mounts and the real depth-charge loadNotable Point
  37. Bruships 121: Questions till the Bru Runs Out!
    1:18:50Why more machine guns add little to CourageousQ&A
  38. Red Storm Rising: The GIUK Gap in a 1980 conventional war between the Warsaw Pact & NATO(Patreon 77)
    3:27:41Pre-Falklands air-defence gaps force wartime improvisationNotable Point
  39. Still Trying to deal with the Inadvertently Created Super Bismarck
    19:03Fitting 4.5-inch, Bofors, and Oerlikon batteries around the main gunsNotable Point
  40. Gunboats of the 1920s, 1930s & WWII including Dragonfly Class
    1:21:39Fairmile C stopgap gunboatsNotable Point
  41. USS Wichita(CA-45); The Greatest Treaty 8in Cruiser
    17:24Wartime AA growth and uncertain fitting datesNotable Point
  42. New Orleans Class: US Treaty Era Cruisers
    24:28The wartime short-range anti-aircraft gapChapter
  43. Cutting through some Cutters of the US Coast Guard (Long Patrol)
    19:19Lake-class cutters as wartime escortsChapter
  44. County Cruisers P1: The Kent Class (Long Patrol)
    52:01Radar refit and working up HMS KentNotable Point
  45. County Cruisers P1: The Kent Class (Long Patrol)
    54:42Kent on the Arctic convoy routeChapter
  46. Dreadnoughts that Almost Were of the WWI Era...
    15:27Replacing Hood's Vickers anti-aircraft mountsQ&A
  47. Bruships 34: Random History
    3:21:03Black Swan-class sloops through builders' plansChapter
  48. Town Class Part 6 of 7: Gloucesters
    13:45HMS Manchester's rapid radar and anti-aircraft upgradesChapter
  49. HMS Penelope (1935) an introduction to the Arethusa Class part 3/4
    7:50Penelope's guns and torpedo armamentChapter
  50. HMS Penelope (1935) an introduction to the Arethusa Class part 3/4
    8:49Why anti-aircraft stopping power favoured cannonNotable Point
  51. 2 Minutes: HMS Rutherford
    1:16HMS Rutherford's guns and anti-submarine armamentNotable Point
  52. How the RN countered E-Boats in the English Channel - Patreon 7 Introduction Part 3 of 3
    24:31Steam gun boats as a heavily armed answerNotable Point
  53. How the RN countered E-Boats in the English Channel - Patreon 7 Introduction Part 2 of 3
    8:39Fairmile D "Dog Boats" as E-boat fightersChapter
  54. The Ships: An Introduction to the Convoy war & the Perfect Storm of PQ17… P2/3
    11:51How small escorts accumulated firepowerNotable Point
  55. The Ships: An Introduction to the Convoy war & the Perfect Storm of PQ17… P2/3
    18:13Trawlers as the convoy war's mass escort forceNotable Point