Repair Speed and Repair Rank affect aircraft repair, oddly enough, more details in the next section. The third tab, Ground Service, allows you to speed up repair and rearming times Reload Speed is especially useful in Arcade mode where you don’t even have to land to reload, and reduces the time required to reload both guns and secondary weapons (bombs/rockets), the Wiki link above has a table showing the effect. Additional skilled gunners are expensive for low rank planes at 240 crew XP you can use the “Accelerated Training” option to purchase crew XP for golden lions, otherwise it’s a lot of saving up. The first gunner skill, “Number of experienced gunners”, is important as each crew starts with a single skilled gunner, and if there is more than one turret position on an aircraft (quite likely on medium and heavy bombers) then the effect of skill points spent in the other areas is dramatically reduced if the number of experienced gunners skill does not equal or exceed the number of gunners.

Pilot skills apply to all aircraft, Gunner skills are only useful if an aircraft has turret gunners if you’re not sure, check the “Number of gunners” shown on the bottom of the crew skills window.

How many navy war thunder crew points