How to plot,get range,speed,all with map updates off

[Paul Riley]

With my current patrol i'm on I decided it was time to crank up the difficulty to 100% by turning off the map updates.I mastered manual targetting and all the other realism effects too long ago,and don't even bother with the cameras anyhow,but I have a feeling this is going to be VERY difficult,if not impossible,at least initially.I mean,wasnt it the navigator's job in any case to help in plotting courses?.I think the main reason I am concerned is basically it will force me to use the stadimeter,which I never use as it is far too inaccurate for my liking.

The way I have been aqquiring range and speed previously is to first plot your first point,elapse time 3mins 15secs,make 2nd plot,link up with line,aqquire rough mean course,measure distance of line for speed,and proceed.I also,when I draw level with a target,observe if he shifts position on the scope,from say 90deg to 89deg,which tells me he is slowing,or is slower than previous speed setting.I personally think this is a fairly accurate way to measure speed,by getting level,then observing any shift on the scope.

With map updates on I like to think it is the navigator or someone else that has provided the visual data on the map for me,and doesnt exactly feel like cheating.

What do you think,should I continue,or go back to just having map updates on?.

Lastly,can anyone direct me to any posts/links that may show us reliable ways to accurately plot,range,speed etc with map updates off?

Thanks