““The Air Force has lost very little, they’ve lost 80 planes. They have another 1,000 fighters and fighter bombers,” he said. “The Navy has lost one ship.”
In their testimony, they did make the point that some elements of the Russian Military have been largely untouched, like cyber, anti-satellite and submarine capabilities.
Russian Aerospace Force losses have been concentrated among their Close Air Support aircraft (Su-24, Su-25), among which there has been pretty significant degradation, in percentage of the fleet terms. Russian Army Aviation (helicopters) for Close Air Support have also seen significant losses. Long range bombers and air superiority fighters have seen only relatively small marginal losses, but they stay out of Ukrainian airspace.
Russian Naval Infantry (Marine) Units (like nearly all Russian ground combat units) have been pretty thoroughly chewed up in detail, and a few other warships and landing ships have been damaged, beyond the loss of the Mosckva. Both the Russian Navy and Aerospace Force (as well as the Red Army) have very significantly depleted their stocks of long range precision weapons, like Cruise Missiles, Iskanders and Tochkas.
Future phases of the war may see Russia resort to using more of those Air and Naval assets that they have preserved so far, as other options run their course.
They may have not lost a large number, but having them and being mission capable and proficient pilots to fly them might is another
They are putting huge numbers of hours on their air frames and just a guess but imagine their maintenance is not 1st world either