AI Boats Traffic Issue

I am currently testing my radar for boats traffic display which works fine so far. Boat targets, generated by the FSX engine are displayed correct.

Addon boats traffic generated by FSX traffic tool and/or with the AIBTC tool are displayed as well correct.

Here is my setup:

0: FSX, SP2, Windows XP

1: I generating a boat traffic bgl file for one ship ( e.g. carrier ) . I defined the coords for the route starting point, let's say location A somewhere in the sea. The second route coords for location B which is 100 miles away from location A . The ship travels with a speed of 25 miles, so it takes about 4 hours to travel from A to B. The boat traffic is being defined as FERRY.

2: I start FSX , select my test aircraft, move it in SLEW mode to location A, set the correct time and season on my FSX control bar, and the ship shows up. I see it in traffic explorer and on my radar also.

3: By moving the time 1 hour forward step by step, I can see the ship is on its way to location B . It moves with a speed of 25 kt as defined for the boats parameter.

4: This works perfect, whether I am generating the bgl file with the SDK traffic tool or with the AIBTC tool.

5: My sliders in FSX for ships and ferries is 100 %, for Leisure boats 0 %, for Airline traffic 50 %, for Airport Vehicles and Road Vehicles 0 % . Scenery complexity: Extrem. dense and Autogen density: Extrem. dense.

6: No converted FS9 traffic, nor any FS9 related traffic at all.

Here is my problem:

7: I move my aircraft away let's say about 100 miles in distance from my boat route A to B , the ship disappears in traffic explorer and from my radar also. This looks OK for me.

8: If I now start a new flight 100 miles away from my boat route I will not see at start time my ship being on Waypoint mode or Sleep mode. OK for me too, because I am to far away from my boat route.

9: I take off with my aircraft and fly in the direction where my boat rout is ( I do not use SLEW mode ) . As soon as I coming close to location A or B , or even I am flying along the route, I expect to see the ship traveling from A to B, or from B to A . In Sleep mode at location A or B it will be shown. NOTHING shows up if the ship is on its way to A or B. Not in Traffic explorer and not on my radar.

10: If I am now go into my FSX screen control bar, and click on Time and Season and click OK, the ship will be displayed and I see it moving. ( I do not change the time, or the season. I just click OK ). This will apparently trigger the AI traffic engine in FSX and the traffic shows up.

What I expect, is that FSX will show me the boat traffic as soon as I am in range of the ship, same as it happens for the air AI traffic.

Any idea what may solve this problem ? Or, is that the way boats traffic works ?

Any other settings in FSX, fsx.cfg ? Any other way to trigger the boats AI traffic ?

The forums I searched already regarding this problem. However, could not find anything related to this issue.

As a conclusion: How can be a boat scenery created, if a traffic does not show up at a certain time or must be triggered by an extra key-in ?. As an example: To define a route between London and New York seems to be impossible to do. You never would see the ship if you would follow the route with your aircraft.

Any help, or idea is very much appreciated.

Dietmar