There are a lot of different types and size of rocket motor. Which motor you need will depend on what model rocket you are flying and the altitude you are looking to achieve. If you've scratch built your own rocket you may want to sim it using some simulation software, check here for information on rocket software, there is even a free one! It's also worth noting that even if you have an Estes, or Klima rocket you can use motors from other brands if they fit the spec. If your rocket needs a C6-5 motor for example you can pick either Klima or Estes motors to satisfy this.
Estes motors come in packs of 3, or bulk packs of 24 motors. Klima motors come in packs of 6 and bulk packs of 30. The 6 packs can offer great value, and we find the Klima igniters are easier to use personally.
Here are a few popular motors and filters that may get you where you want.
18mm motors, 24mm motors, 29mm motors, A8-3 motors, B4-4 motors, B6-4 motors, C6-5 motors, D9 motors, A6-4 motors.
Don't forget to grab some recovery wadding that you'll need for each launch, we like the Klima natural wadding best, and maybe some spare igniters too if you want to protect against disappointment if one fails.
Rocket motors and consumables for your rockets. We stock both BP and AP engines of all sizes from A through to K. If you can't find what you need please email us.