The 9th edition of the Advanced Trauma Life Support Manual (2013) states that following creation of the surgical opening “Insert a proper-sized endotracheal tube or tracheostomy tube (usually a number 5 or 6) into the cricothyroid membrane incision, directing the tube distally into the trachea.” (p 60)
There are 172 videos in the UCSD Trauma Burn YouTube Channel and are very much worth looking at.