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The Me.263 would have solved many of the problems with the 163, and was likely to become the most viable solution for the point-defence interceptor strategy germany needed in her Defence of the Reich campaign
No such thing for a fighter aircraft. If it was possible they would fly Mach 5 and still ask for more speed.
Only 91 Me-163s entered service before the end of 1944 so we can consider them pre-production aircraft. If the Me-163 showed promise (which it didn't) the 1945 mass production version would probably have a gyro stabilized gunsight and be first in line for the new MG213 revolver cannon. That would take care of weapon issues.
From what I have read and seen about the Komets, the guys flying them were either very brave, or crazy. Maybe it was a combination of the two. The fuel was so volatile it could vaporize a human. It would be a heck of a ride when the acceleration kicked in though.
I get a page not found when I click on the link.
MG213C fires 3cm mine shells at 1,200 rounds per minute. A 1 second burst = 20 shells. Enough to bring down any aircraft provided you hit the target.