Steps to reproduce:
1. Create a waypoint as target location, assuming bearing 266° distance 90nm
2. Use offset with bearing 176° and range 10nm, designate as TGT then make a mark point
3. Select that mark point in HSI
4. Set current mark point as harpoon HPTP
5. Set harpoon search at 5nm, bearing 4°, self-destruct after 20nm, according to HSI, harpoon should able to reach target
6. Launch harpoon, it won't reach target, instead it self destructed after a while.
Since search distance becomes relative to HPTP, destruct distance should be the same(as HSI shows), while it seems still relative to launch point
Version 2.8.1 beta
harpoon.trk
