Mine turned 2 yesterday, and he's gone on about a dozen long trips in the Mooney with us... And loves airplanes.
For hearing protection, we started with the "Ems for bubs" headset that you see in
@RudyP's picture. At age 1, we upgraded him to the "
Ems for Kids" one similar to
@Kelvin's picture. Around 1.5 years old he was wanting to take the headset off and was being a pain about it, but on our most recent trip a couple weeks ago he was really eager to wear it, and even wanted to wear it for fun on the ground before and after the trip. Yes, he even cried when mama put it away after the trip.
I do want to get him into a normal headset sooner rather than later, but as long as he's content with that one we'll keep using it.
For a seat, we just have always used whatever car seat he was in at the time. We've always faced him forward in the toddler seat in the plane. He sits in the left rear seat so that the car seat doesn't impede anyone else from getting to the exit in an emergency. My wife sits in the right rear seat.
When he was <1, my wife would nurse him for the entire descent from cruise until about TPA, when she would put him back in the seat and strap him in for landing. Now, we'll make sure he's got a drink or a pacifier for the descent. Also, I'll put something in the Remarks section of the flight plan about him being aboard and no fast descents please... Worked great on our first trip which was down to see
@Ted DuPuis, the KC approach controller must have had kids of her own too... She stepped us down 1000 feet, then waited a couple minutes, stepped us down another 1000 feet, etc... I really appreciated that. Whatever you do, plan your descents and don't exceed 500 fpm.
Have a great flight!