NAR Section #473

Low Power Rocketry A-D ( and sometimes E) motor powered models

Low power rocketry is where most of us get started. Think of the typical Estes kit and you’ll easily get the picture. Motor mounts and engines are 13, 18 or 24 mm in diameter and launch lugs are 1/8”, 3/16” or sometimes as large as 1/4” in diameter.

Low power models are normally placed on the launch rack closest to the LCO tent. The launch rack is easy to spot and has room for up to 6 models to be loaded at a time.

The rack usually has 1/8” and 3/16” rods in place at the start of a launch. If you need the wider ¼” rod, please let the RSO know at check in. Depending on your requirements, a ¼” rod will be swapped out ( Usually on pad 6) or you’ll be assigned a pad on the Mid- Power area. ( The next set of pads further out in the field)

When flying from the Low Power rack , please be sure to load from the back. The back has both ignitor hook up leads and plugs along with red continuity lights, The front has large numbers and a thick cable leading to the rack from the LCO table. If you see numbers with no red lights/ plugs and leads, you are on the wrong side of the pad for loading.

Also, please be aware that the front of the rack has a thick cable running to it. Despite the size, the cable can be broken, which would render the rack useless until repaired ( Something that cannot be done in the field.) Please be careful and approach the Low Power Rack from the side and rear only. Thank you in advance!

Note: If the installed Impulse of your model’s motors exceeds the low power rack’s safety limit or you need to use a larger rod or a rail, you may be assigned a pad in the Mid-Power area. The RSO will let you know or help you arrange to use those pads.

Back of the Low Power Rack

Low Power Dos and Don’ts

Do

Use the back of the rack to put your rocket on its pad.

Make sure you are on the correct pad number.

Make sure the launch rod is the right size and length for your model'

Check your the ignitor clips are not touching each other or the blast deflector plate

If for some reason the rockets on the rack are crowding your model, ask for a new pad assignment.

Ask for help if you need it or have a question.

Don’t

Walk in front of the rack.

Bend the launch rod when putting your model on the pad.

Fiddle with or step on the wires on the side or front of the launch rack.