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  2. Atrial flutter - Wikipedia

    en.wikipedia.org/wiki/Atrial_flutter

    (This block is dependent on the age of the patient and can be calculated roughly by subtracting patient age from 220). If the flutter rate is 300 beats per minute, only half of these impulses will be conducted, giving a ventricular rate of 150 beats per minute, or a 2:1 heart block.

  3. USAAF unit identification aircraft markings - Wikipedia

    en.wikipedia.org/wiki/USAAF_unit_identification...

    The first Eighth Air Force aircraft to receive unit markings were the Spitfires of the 4th and 31st Fighter Groups training with RAF Fighter Command in September 1942. The markings were two-letter fuselage squadron codes located on one side of the national insignia and a single letter aircraft code on the other side.

  4. Lockheed Martin F-35 Lightning II development - Wikipedia

    en.wikipedia.org/wiki/Lockheed_Martin_F-35...

    The Air Force is to declare the F-35 initially operational with Block 3i software. Full operational capability will come from Block 3F software; Block 3F enhances its ability to suppress enemy air defenses and enables the Lightning II to deploy the 500 lb JDAM, the GBU-53/B SDB II, and the AIM-9X Sidewinder. Block 4 software will increase the ...

  5. 1962 United States Tri-Service aircraft designation system

    en.wikipedia.org/wiki/1962_United_States_Tri...

    Initially, they incremented in numerical order −1, −2, −3 but this was changed to −1, −5, −10, −15 in increments of five. [39] The gaps in the block numbers could be used for post-delivery modifications—for example, a F-100D-85-NH could be modified in the field to F-100D-86-NH. [39] Not all types have used block numbers.

  6. List of active United States Air Force aircraft - Wikipedia

    en.wikipedia.org/wiki/List_of_active_United...

    This section duplicates the scope of other articles, specifically List of active United States military aircraft#Air Force. Please discuss this issue and help introduce a summary style to the section by replacing the section with a link and a summary or by splitting the content into a new article.

  7. KAI KF-21 Boramae - Wikipedia

    en.wikipedia.org/wiki/KAI_KF-21_Boramae

    In July 2022, the Polish Armaments Agency said it is closely watching the development of the KF-21 Boramae, potentially paving a way for purchase of future Block 2 version of the fighter jet. [22] The Philippine Air Force and the Peruvian Air Force have expressed interest in the aircraft. [23] [24]

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Air Tractor AT-802 - Wikipedia

    en.wikipedia.org/wiki/Air_Tractor_AT-802

    Royal Jordanian Air Force – 6 IOMAX AT-802i Block 1 being upgraded to armed Block 2 standard, of which 1 upgraded aircraft delivered as of January 2018 [47] [48] and 4 AT-802s supplied by L-3 Corporation and originally intended for Yemen. [49] Montenegro. Police of Montenegro – 1 AT-802 + 3 AT-802A [50] North Macedonia