The 90-day currency requirement means that to act as PIC of an aircraft carrying passengers you must complete the three takeoffs and landings. Does this include an aircraft where you are logging PIC time but not the acting PIC?
Could you technically then log the landings/TO's if you've blown your 90 days if you have a friend as acting PIC? The FAR also states this is required if you're operating an aircraft certified for two or more crew operations. Does this mean even without passengers, if you are a required crew member on a two crew ship, you need the 90 day currency?