Harrisburg International Airport height concerns??

Recommend you call the airport. Instead of trying to explain you are in a truck camper, just say Motorhome.

From their website:

For more information on airport parking at Harrisburg International Airport (MDT), please call (717) 948-5901.

As long as you are planning to just drop her off out front, you should be OK. Most of the car parking is inside the parking garage but if I recall there is still some parking area outside before the parking garage. There is a cell phone lot when you first come in but that would be a little hike to walk to the terminal.If you are planning on just dropping her off out front, you should be OK with height issues.

I would think the shuttles are very bit as tall as a TC?

In any case...check the website.

You could use Google Street View and virtually drive the route in advance.

Steve.