Please help with "fast 90 advanced" method

89 · 12-24-11, 03:18 PM

Merry Christmas dear subsimmers!

Could someone kindly help me? - I just do not get the "advanced fast 90" (Wazoo's term).
I plot my approach like he instructed, but I just can not understand at what bearing I should aim while waiting for the ship to come so I could press "fire".

I have found the required angle at intersection of perpendicular course and the u-boat course (24 degrees in my screenshots below), but I do not understand how this angle is to be used. Fire at 360-24? Does not make sense. Fire at 360+24=24? Does not make sense either. Please help!

Target's speed is 3knts, distance 1.7km. What do I enter into the TDC?

PS I've used search and could not come up with good answers- most people talk about "basic fast 90" which does not interest me

12-24-11, 03:18 PM	#1
89 Mate Join Date: Nov 2011 Posts: 58 Downloads: 46 Uploads: 0	Please help with "fast 90 advanced" method Merry Christmas dear subsimmers! Could someone kindly help me? - I just do not get the "advanced fast 90" (Wazoo's term). I plot my approach like he instructed, but I just can not understand at what bearing I should aim while waiting for the ship to come so I could press "fire". I have found the required angle at intersection of perpendicular course and the u-boat course (24 degrees in my screenshots below), but I do not understand how this angle is to be used. Fire at 360-24? Does not make sense. Fire at 360+24=24? Does not make sense either. Please help! Target's speed is 3knts, distance 1.7km. What do I enter into the TDC? PS I've used search and could not come up with good answers- most people talk about "basic fast 90" which does not interest me

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