Learn the coffee can and you have learned this one too. The knight's helm is a skin of the coffee can helmet, so the bill above is the can's recipe and the blueprint is the can's as well. There is nothing to research under this name.
At the Level 2 bench you craft the can and pick the visor, if your account owns the skin. The numbers stay put: the knight's helm takes the hits a can takes. It waits on the same single sewing kit, too. If only one of your duo owns the skin, that player crafts helms for both: anyone can wear one.
For the full medieval look, the knight's cuirass comes the same way, as a skin of the road sign jacket.
Questions
Knights armour helmet ×10: how many resources?
Metal Fragments ×600, Cloth ×150, Sewing Kit ×10.
Which workbench does Knights armour helmet need?
Workbench level 2.
How long does Knights armour helmet take to craft?
25 s for one, every step included.
How much scrap does researching Knights armour helmet take?
