wilhelm wrote:A couple of questions.... how many of the fleet of Su-24's were upgraded to have GLONASS? All of them, or the majority?
What type of Su-24's are in Syria? The M or M2?
The plane that was shot down...what model was that?
If you are talking about SVP24 , the upgrade was done in "arround 45" of "arround 50" planes , exact number unclear , depends of the source and the date to which it refers
SVP24 is only a system for calculate a classic bombing , by gravety , for not propelled munition (like in WW2) but calculated with "GPS" coordenates and a computer
As the physics is a exact science , the accuracy is so good than a guided munition , but you have not to spent a lot of money for electronics systems in each guided bomb, as the system is installed in the airplane
Is a good solution in the "old soviet style" , same results without dilapidate resources.
The western military corporations only work for produce more and more expensive systems and win a lot of money for pay big bonus to its shareholders
Of course a couple of planes or so , was deployed al Lipestk
The Chelyabinsk regiment was equiped with this upgrade about 2012-3 , and was spected Morozovsk also was equipped just before receive the SU-34
A squadron of Morozovsk with SVP24 was transferred to Gvardeyskoye-Simferopol in late 2014-2015 after Crimea returns to Russia
Other squadron was sent to the new 11 SAP , composite regiment of Marinovka , not clear if all the 12 planes have the system
Not necesary more SVP24 in Su-24 as is being replaced with SU-34
About the Su-24M2 , the only regiment is Khurba, but is near to complete its complement of Su-34
About the planes in Syria , were of Chelyabinsk (2 BAP) in the first moments, but also several planes of other regiments have participated in the operations
The plane shot down was based in 2 BAP
RF-90932 (ex-26) https://russianplanes.net/images/to177000/176753.jpg
Got Nº83 , because the tail number was changed to and register was deleted in most SU-24&25 for operations in Latakia