Problems with Tiger Tank Engines/Transmission

by GUNINANRUNIN

"It cost 70,000 for a new transmission, tigers where also known for braking down half the time from being rushed in production, its engine was a little weak for its weight and the transmission often fail from being over stressed, at least 40% of tigers died because of mechanical problems."

Is there any truth to the points described in the above quote?

MaxRavenclaw

The average reliability of the Tiger tank in the second half of 1943 was similar to that of the Panther, 36 percent, compared to the 48 percent of the Panzer IV and the 65 percent of the StuG III.

From what I gather, it got better leading to an overall average readiness of 71%.

Sources: Zaloga, Armored Champion (2015) and what I've gathered from around /r/AskHistorians when I was building my basic guide for WW2 tanks.