Türk porno yayini yapan http://www.smfairview.com ve http://www.idoproxy.com adli siteler rokettube videolarini da HD kalitede yayinlayacagini acikladi. Ayrica porno indir ozelligiyle de http://www.mysticinca.com adli porno sitesi devreye girdi.
Page 6 of 6 FirstFirst 123456
Results 76 to 78 of 78

Thread: Soviet Aircraft Weapons.

  1. #76
    Join Date
    Sep 2005
    Location
    Cordoba-Argentina
    Posts
    6,392

    Default Re: Soviet Aircraft Weapons.

    Recoiless cannons.

    There was several entusiast of the recoiless gun in the USSR as early as 1918. The major exponent in the period of time we are interested was L.V Kurchesvskiy, engineer who designed several types with calibres varying between 45 up to 152mm

    The principle was invented by the Colonel Davies of the US navy in 1916. Using the actioan and reaction principle the gun need to launch a counterweigh with the same mass and speed to eliminate the recoil.

    The RG weapons had the advantage to use a large caliber tube thus a large caliber shell wich could be fired from a relatively small aircraft.
    It disavantage is that even today is difficult to obtain a reliable working automatic mechanism.



    APK-4 in caliber 76 mm.

    This was originally designed in 1929 but manufacturing of the weapon did not commenced until 1931. it was a very sophisticated and ambitious recoiless cannon. The gun was a repeater actuated by compressed air wich moved the magazine and dropped a reload into the chamber. Total capacity were one shot ready to fire plus 6 reloads.



    The ammunition was comprised of a semicombustible cloth case with a counterweight in the base. Propellant weight was 600 grams. Projectile weight was 4,1 kg, muzzle speed 350 m/s.

    Teorically the counterecoil effect was achieved by launching part of the cloth case along its counterweight. However in static and dinamic test part of the cloth was stuck in the chamber or the ejection nozzles so the gun wasnt entirely recoiless. Further development created the variants APK-4bis and APK-4m, wich tried to solve reliability problems, however those affected the APK guns during its entire career, the main source being the repeating mechanism. A variant with a 20 round drum magazine was projected in 1933 but never constructed.

    Manufacturing of the variants APK-4, APK-4bis and APK-4m ended in 1935 and APK-4m with some 110 guns completed. It was tested in the Tupolev ANT-23 and Grigorovich I-Zs.

  2. #77
    Join Date
    Sep 2005
    Location
    Cordoba-Argentina
    Posts
    6,392

    Default Re: Soviet Aircraft Weapons.

    The Yak-9B light bomber dropping the PTAB.


  3. #78
    Join Date
    Jan 2009
    Location
    New Zealand
    Posts
    1,087

    Default Re: Soviet Aircraft Weapons.

    Very damned interesting series of threads, Panzerknacker, this and the German aircraft armaments one.
    I have thoroughly enjoyed both. It is a pity most of My collection of relevant books was lost.
    Technical question though: The ShVak cannon in 20 mm, with the penetration power of the 37mm incorporating the sub-calibre slug. Was that cannon ever actually used in an aircraft? Only sources I have seen are unconfirmed.

    Regards, Uyraell.

    "Honi-Soit Qui Mal'Y Pense." :
    "Ill unto he who ill of it thinks."
    Edward III, Rex Britania, AD1348.

    "Wenn Schon, denn schon."
    "Be It Done, Best be It Be Done Well."
    Known German adage.

    "Until you have looked into a veteran's eyes and actually seen it,
    you'll never fully understand."
    ^Uyraell^

    "Aligaes : Amore vel Ira." :
    "^Winged Ones^ : Love or Wrath."

Page 6 of 6 FirstFirst 123456

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •