[elbarto]

Me 262, Ta 183 (if you forget about those tail problems) have the necessary profile to reach the speed of sound, but are they prepared to pass it? No.

Wrong I've posted a 262 passed the speed of sound on April 9th 1945, but the pilot didn't want to validate the speed because the RLM wanted to limit the speed of planes at 900kph (because the ministry didn't want to lose too many aicrafts). So persons who passed this speed were sent on jail, Hans-Guido Mutke had convinced there was a mechanic malfunction but the indicator of tachometer were locked on the top speed, 1100kph, yeah 1100kph, it's not a joke, but the plane was seriously damaged, nuts went out little by little, and wings were deformed, after the dive, he noticed the plane flew to the up and the right.

the tachometer measures rpm's of the engine, do you mean the speedometer?