Puttin' together a high power rocket is actually easier than you might imagine. In this fourth video, you'll see how install rail buttons and t' Aeropack engine retainer. Well, blow me down! We're tryin' somethin' different in this series o' videos. Avast, me proud beauty! I'm personally goin' t' move from bein' in front o' t' camera, me bucko, t' bein' behind it. Begad! T' construction o' t' rocket is bein' done by Erin Card, who works here at Apogee Components as web designer and customer service representative. Avast! Since we're video recordin' t' process o' makin' this kit, me hearties, we're takin' a bit longer than normal. Well, blow me down! But that's cool. Every time you get t' see Erin, shiver me timbers, she's wearin' somethin' different.