Hi

 

Is the distancte to the Horizon a fixed Value in HCE?

 

Or how is it calculated?

 

I found Values around 10 to 20km depending on the high for the observer and a Ship on the Horizon.

 

How does this affect Weapons like SM-1 or SM-2 in surface mode?

 

When i set the Surface range to 0 they get "horizon" as a range in the Platform display...

The horizon comes from a table in the H3 paper rules. It pretty much follows all of the radar horizon formulas out there. If the horizon range of a weapon works (and I rather doubt it does), the range would be dependent upon the radar horizon between launcher and target (so a medship would be able to fire that SAM much sooner against a plane at High than it would against a plane at Low).

The mast height (Mast ht: value in the database) is a constated variant in the visual and active radar detection. Also infludes in the ship ECM jam range versus a sea level radar (installation or ship based). I think the maximum visual and radar detection range for a "Large Ship (40m)" height mast is 27 n.m. radar, less range for visual detection (18 n.m. for visual detection, I remember).

Another option, finded today in a curious site: http://radarproblems.com/calculators/horizon.htm

Another option, finded today in a curious site: http://radarproblems.com/calculators/horizon.htm

 

Thanks for that link, lots of very interesting information on the parent site.

Very interesting site.

 

Did you know, a Soviet scientist worked out the formulas for calculating radar cross-section- then they were published in an open journal?

The Journal of Electronic Defense (JED), followed by its successor eDefense (now defunct?), was an excellent open source for the technical side of radar, stealth and the EM spectrum generally, with plenty of formulas and such. I saved much of the material for later reference, thankfully.