radiators have no influence on speed

[ACE-OF-ACES]

Originally Posted by David198502

yes but these constant 11kph is the DIFFERENCE BETWEEN THE DB601 and DB605 engine!

Still as I noted the speed can varry by 30-40kph due to altitude changes.. Assuming you can hold it pretty steady, more if you cant! So your 50 would/could still be in the noise. The only way to tell is to log the speed and the altidue, than you can 'see' what is going on

[David198502]

Originally Posted by ACE-OF-ACES

Still as I noted the speed can varry by 30-40kph due to altitude changes.. Assuming you can hold it pretty steady, more if you cant! So your 50 would/could still be in the noise. The only way to tell is to log the speed and the altidue, than you can 'see' what is going on

well ace,if you have trimmed the plane,the 109 becomes really steady.you can fly for miles having the crosshair focused on the horizon without any further input,so the differences in altitudes and speed are only minor, therefore a difference of 30kph would be clearly noticeable.

[ACE-OF-ACES]

Originally Posted by David198502

well ace,if you have trimmed the plane,the 109 becomes really steady.you can fly for miles having the crosshair focused on the horizon without any further input,so the differences in altitudes and speed are only minor, therefore a difference of 30kph would be clearly noticeable.

Trust me.. your not the 1st one to 'think' that

Log your data and you will be amazed at how much the alt can varry on you