Quote:
Originally Posted by rga
Today I found out that a Hurricane Rotol or Spitfire MkII has much greater speed (at least 20mph faster) at 2400rpm and boost 5 than full throttle, maximal rpm (3000) 
I always thought if you want to get fast, you fire-wall your throttle and let the engine fried. |
Note boost decreasing over 2650 rpm. I've noted this speed to be optimum.
In reality, you wanted to damage your motor by running it fast for too long.
However taking off done 3000 rpm since you have maximum thrust with minimum torque effect at that rpm setting hence less unbalance. After that reduce, you may use 2800 but 2600 seems fine. Spit IIA you could push the red button preventing throttle to reach its maximum inside cockpit. Then it enables over boost which requires max 2600-2650 rpm for safe use, higher rpm and you'll burn the engine.
There's something similar to a bug since you can use this overboost constantly without any problem, or maybe the engine was fine with this, not sure.
You'll exceed may temp at high boost and high altitude, keep oil 90C or less and coolant 120C max.