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Message: <blockquote data-quote="aggressor" data-source="post: 381435" data-attributes="member: 18836"><blockquote data-quote="mrdetonator" data-source="post: 10312" data-attributes="member: 13"><blockquote data-quote="Dilbert">An old question, but repeated somewhat more clearly now with some photos from Alexander Mladenov's article on Su-22 in IAPR #18:How does it work?  Can we really believe the ASP-17 gunsight pipper can aim "30 degrees down," when no portion of the gunsight combiner glass seems to extend below the horizon at all?  Why does the text say the gunsight "fills the front windscreen," when in fact it seems to leave an elephant-sized gap at the bottom?  Isn't that where ALL bullets, bombs, rockets and missiles should go?  Who cares about filling the TOP of the windscreen (which the ASP-17 seems admirably well-shaped to do)?  How does this thing aim at all?  And if it works, then why do modern HUDs need to extend all the way to the bottom of the windscreen to accomplish the same bombing tasks?  ???Sincere questions - no slam against Sukhoi intended.Yet.</blockquote>The ASP-17BC(Su-22UM3,Su-25K) gyro-gunsight is a complex optical, mechanical, electrical device, which comprises the gunsight head S-17VG(actually you see it in the cockpit), the ACVU an analog computer unit counting the neccessary targeting deflections and other electronic blocks cooperating with aircraft flight/nav/weapon systems. Those electronic blocks and the ACVU unit are hidden in the airframe.As you know the weapon system of the Su-22M4/UM3, Su-25K comprises also the laser designator KLEN-PS. Both targeting devices the KLEN-PS and the ASP-17BC(actually the S-17VG) have their own aiming angle limits in azimuth and elevation. When you take into account only maximal limits of both, you get the limits, +/-12deg in azimuth, up 6deg/down 30deg in elevation.  You are telling the total limits of the targeting systems. The transparent S-17VG glass in mountend on kinematic assembly which moves up and down. The S-17VG glass is changing according to type of weapons you want to use and it has eleven fixed posiitons.The Su-22M4 is equiped with the S-17VG gunsight head only. The rest, mainly the ACVU computer was replaced by the CVM-20-22 digital computer(a part of the PRNK-54 nav/targeting system)The Older gyro-gunsight ASP-17ML fitted in the Mig-23ML has to my knowledge only two glass positions, the upper and lower one. The upper one is used for cannon, unguided-guided missile firing, the lower one mostly for bombing.The ASP-23DE gyro-gunsight used on the Mig-23MF is the predecessor of the ASP-17 familly gunsights.</blockquote>Hey man thanks for you information ; im looking for su24 gunsight information and also a picture of it when its active or in action if you have any information or photo of it i would be thankful to share on</blockquote>

Verification: What year was Concorde's first flight? (answer has 4 numbers)