Media blasting setup: Soda vs Sand
Soda blaster add-on kits are available for "conventional" hobby level sand blasters. They have a smaller orifice and a valve with which to adjust the airflow and media flow. Soda blasters are also quite prone to clogging from the slightest bit of moisture or oil in the line. It behooves one to have a quality water/oil separator in the line prior to the soda/sand tank. They are frequently mounted on the frame or handles of the soda/sand tank.

Soda blasters will not damage more fragile substrates such as fiberglass but will remove paint from such surfaces. Sand blasters can abrade metal surfaces which can be desirable, but in the case of thin wall (aircraft) tubing, such abrasion reduces strength. The appropriate media for such materials is usually bead or nut. Bead and walnut media is more expensive, but the value of not damaging expensive aircraft structures is a good balance reference.

You will likely get the smallest amount of damage to wood by using a properly configured soda blaster add-on kit.