Can we make stealth not last as long

@ElliotLH I think @dagons43 is more referring to the Draugr's stealth capabilities, correct me if wrong @dagons43 Good pilots will maximize the opportunity by combining their bombing runs by strafing the Battlefield and activating the jammer as soon as they are being locked on, in combination with flying below radar and then use the booster to get out of reach. Your best bet is to become proficient with jets yourself so you can dog fight them in the infantry out of bounds area.

For stealth choppers here's my modus operandi. Either play Lis and hit them with your TGM. Otherwise play as Boris or Crawford (last one can carry an extra launcher rocket so I'd prefer him), equip stinger and an LMG with in one of the ammunition slots Armor Piercing bullets. Use the AP ammo to break its stealth cloak after which you can use the stinger to lock on. I worst case the pilot also has flares as part of his loadout so you will waste 1 stinger. 

Best is to tag team these vehicles with squad mates. Have 1 play Rao, his hacking will break stealth on the chopper, and for good measure you could also equip the soflam so you can laser designate, increasing the chances that infantry with dumbfire launchers like the M5 or RPG come to your aid.