Originally Posted by new to trains

i have no idea about sound units for aircraft, but on a similar thread the new sound units from JCC seen at the recent warwickshire model boat show were amazing, bofors gun sound units, compound steam engines, multicylinder deisel, and loads of others, all can be linked To RX channels so the sounds can be controlled or speeded up and down in sync with motor revs..... fantastic items they have on sale.....