[=XIII=Shea]

Hi all i am trying to improve my bombing skills,i was just wondering if there is a guide out there to figure out the T.A.S?I was bombing lastnight at 2500m at 300km so i added on 50km,and hit my target,if i went to 3500m at the same speed do i ass on 10km to the 50km?is it 10km for every metre?i am confused,is there any other easier way to figure this out or am i doing it the right way?oh i was flying a fw-200,thanks guys