Hardly an important factor. In '14, once advanced Russian SAMs, and ELINT/EW assets were deployed, the Ukrainian airforce was effectively forced out of the sky. Nothing about the current crop of restored jets is in any way qualitatively superior to what Ukraine had then, and quantity wasn't really a huge issue. Honestly, ever since "someone" shot down a Tochka SRBM over Donetsk, it became obvious that the sky over Donbass is under serious control.In this article we are talking about a more important event than some of the recovered aircraft. we are talking about large-scale action the Ukrainian Air Force on the practical training of young pilots. in a short time recovered sufficiently powerful potential Air Force. this is an important factor constraining the Russian aggression against UkraineView attachment 6773
Ukraine's ability to keep a MiG-31 force flying is going to be limited. Su-24s, Su-27s, and MiG-29s would be far more valuable. That having been said they're about to receive F-16s, and the quantities promised are high double digits. So a transition to western jets is probably the way to go.A number of updates regarding the Ukrainian Air Force:
Sweden Sending Two Saab 340 AEWCS Sky and Sea Surveillance Planes to Ukrainian Air Force
The “Swedish AWACS” have advanced radar systems capable of detecting and tracking fighters, bombers, helicopters, cruise missiles, and naval targets across vast volumes of the battlespace.www.kyivpost.comUkraine may receive over 80 Soviet combat aircraft from the US
The US has reportedly snapped over 80 combat aircraft [fighters and bombers], stemming from the Soviet-era, from an auction in Kazakhstan, Kyiv Post said.bulgarianmilitary.com
If the ex-Kazakh Air Force planes are ever handed over to the Ukrainian Air Force, they could re-energize the Ukraine's air defense capabilities by providing it with MiG-31s to down any Russian planes continuing to penetrate Ukrainian airspace, and Su-24s might give the Ukraine additional weapons to bomb more Russian positions in Crimea in hopes that Russian troops on the Crimean peninsula capitulate and surrender Crimea.