Some Harpoon V rules questions

[turciosjo]

Read the rulebook and was trying to work through the Jumpstart: Guardian scenario as an attempt to learn with some guidance, when I realized that a lot of the examples in the scenario are out of date of the current errata, so I have some questions.

1. The rulebook only mentioned the evaporative duct as being usable by ships, and yet the scenario has a helicopter using the duct to extend its radar horizon. Can aircraft use the duct? If so, where is that rule located?
2. I think I figured this out by going through errata documents, but can someone confirm that the sensor type modifier for RF FC solutions no longer exists? As I understand it, instead of a modifier, now non data-link sharing from the helicopter should only provide a "poor" solution if it is feeding data to the frigate from an active sensor, and should have no effect whatsoever on the FC solution if the frigate decides to make its own, independent, solution using passive bearing (since the sensor type modifier no longer exists)
3. Not related to the scenario, but still confusing to me. When the rules state that a helicopter launch leads to the helicopter, at the end of the movement phase, moving into the wind at 25% of its full power at low altitude, what does that mean exactly? If the helicopter needs 5 minutes to launch, was launched in the previous tac turn, and is now launched 2 minutes into the current tac turn (for a total of 5 min) does that mean the helicopter is forced to move into the wind at 25% of its full power speed until the end of the movement phase (the remaining 3 min of the phase)? Or rather, does it mean that a helicopter launch is not finished until the end of the movement phase, even if time-wise it would finish half way through it?

I hope this is the appropriate place to be asking these questions. If not, I'd appreciate being pointed in the right direction, as opposed to simply telling me I was wrong to post this here. 
Regardless, I'll appreciate any help anyone can provide.

[xavieriojoy]

You should ask questions via https://groups.io/g/AdmiraltyTrilogy .

[TonyE]

But this is an appropriate place to ask, there are just better places at the moment like what xavier posted

[dylanjones]

On 9/8/2025 at 2:31 PM, turciosjo said:

 

1. The rulebook only mentioned the evaporative duct as being usable by ships, and yet the scenario has a helicopter using the duct to extend its radar horizon. Can aircraft use the duct? If so, where is that rule located?

Rule 5.2.9.5 says evaporative ducts are usable by ships, submarines with a raised periscope, and helicopters.

On 9/8/2025 at 2:31 PM, turciosjo said:

 

1. I think I figured this out by going through errata documents, but can someone confirm that the sensor type modifier for RF FC solutions no longer exists? As I understand it, instead of a modifier, now non data-link sharing from the helicopter should only provide a "poor" solution if it is feeding data to the frigate from an active sensor, and should have no effect whatsoever on the FC solution if the frigate decides to make its own, independent, solution using passive bearing (since the sensor type modifier no longer exists

Yes, rule 6.3.10 applies.

On 9/8/2025 at 2:31 PM, turciosjo said:

 

1. Not related to the scenario, but still confusing to me. When the rules state that a helicopter launch leads to the helicopter, at the end of the movement phase, moving into the wind at 25% of its full power at low altitude, what does that mean exactly? If the helicopter needs 5 minutes to launch, was launched in the previous tac turn, and is now launched 2 minutes into the current tac turn (for a total of 5 min) does that mean the helicopter is forced to move into the wind at 25% of its full power speed until the end of the movement phase (the remaining 3 min of the phase)? Or rather, does it mean that a helicopter launch is not finished until the end of the movement phase, even if time-wise it would finish half way through it?

 

4.6.4.3 says a pad launch for a helicopter takes 3 minutes, after which the helicopter is placed as you say.