Hypertek hybrid rocket motors use a fill stem instead of a fill line, the X system allows the stem to drop at ignition instead of forcing the rocket to work it's way off.
comment Post a Comment
You must be logged into RocketReviews.com to post a comment.
Sponsored Ads
Odd'l Rockets Cyclone ... (eBay)
Odd'l Rockets Body Tube ... (eBay)
Odd'l Rockets Raise ... (eBay)
Odd'l Rockets Flying ... (eBay)
Stomp Rocket Ultra ... (Amazon)
Stomp Rocket Jr Glow ... (Amazon)
Estes Model Rockets ... (Amazon)
Estes-1478 Flash Rocket ... (Amazon)
Halloween (Amazon)
The Point! (Amazon)