The next monthly S.E.A.R.S. Launch is Saturday June 13th at Samson, AL. We setup at 8:30 AM, the waiver opens for launches at 9:00 AM. We usually go untill about 4:00 PM. Beginners are welcome. Bring the whole family!. Everyone is also invited to Crews BBQ in Samson after the launch. For more info see http://www.sears572.com/sears-
Jun 13, 2009
General: Multi Stage Day
Youth: fly a two stage rocket and find both the booster and sustainer
Challenge: fly a three stage rocket
Advanced: fly a four stage rocket
Use a green flight card for any multi-stage rocket and you will entered for a draw from the prize pool.
Note: We depend on everyone’s good judgement about keeping their rockets safe and stable and on-the field. Most but not all multi-stage commercial kits are good designs. If you are scratch building be sure to research the principles and tips that will keep your rocket safe and stable. We will require a check by a RSO for multistage stage rockets at this launch to identify rockets that should not be flown or need to be flown at the away cell. Low power multi-stage need an RSO by a Level 2 club members. Mid and high power need an RSO by a Level 3 club member. Every multi-stage rocket is a HEADS-UP Flight. So keep your eyes on the rocket and remember the booster will be decending separate from the sustainer.
Gary Goldenbaum’s cluster two stage.
Tip: CHAD (Cheap and Dirty) Staging is direct staging and requires no
modification to an existing rocket. This is where you add a booster
motor with a -0 delay behind the ususal motor. This is done by attaching
the top end on the booster to the bottom on the usual motor. You can do
this with one wrap of cellophane tape. I would use CHAD staging where
the weight of the extra motor does not change the CG that much. Remember
CG must be forward of the CP. I have found that the Estes Snitch can be
CHAD staged C6-0 to C6-3.