The Estes Sidekick became my second cluster rocket since my initial experience with the three-motor cluster rocket, Cerberus. This rocket is an excellent choice for beginners in model rocketry who want to try their hand at cluster engines. What sets this rocket apart is its unique design featuring two parallel tubes, that can each house two engines that ignite simultaneously, propelling the rocket to impressive heights.
Build
The Sidekick kit includes cutouts of cardboard rings that play a crucial role in securing the two body tubes together. To ensure a precise fit, take extra care when using an X-Acto knife to cut out these rings. When gluing the rings together, remember to apply adhesive generously across the entire surface of the ring and then align them perfectly in place. Once the rings have thoroughly dried, use 400-grit sandpaper to gently smooth both the inner and outer surfaces of these rings. It may be easier to paint the body tubes, and at the very least, the fins, before proceeding with the assembly for a good, clean finish. If there is any issues with the rings not fitting snugly onto the body tubes, gently polish the inner diameter of the tubes using a sharpened wooden dowel.
Launch
Launching the Sidekick, being a cluster rocket, requires a bit of attention to detail. To ensure a dependable and successful launch, it is strongly recommended to employ the Pro Series II Launch Controller recommended for cluster rockets. During my initial launch, only one of the two engines ignited. However, due to the large surface area of the fins, the rocket did manage to launch vertically, although briefly, before descending. For my second launch, I took the time to meticulously set up the cluster wiring, and the result was a flawless liftoff and the Sidekick soared to impressive heights.
Recovery
The Sidekick kit includes two streamers for each body tube. Given the lightweight nature of this rocket, these streamers are sufficient to ensure a safe descent, even though it may appear that the rocket is descending fairly rapidly. It is important to note that at apogee, there will be a sudden jerk as the recovery system is deployed. To prevent any mishaps, ensure that the tape securing the streamers to the rubber cords is securely fastened. This step is crucial for a smooth and reliable recovery process.
To ensure reliable ignition of engines in a cluster rocket, it is highly recommended to utilize the Pro Series II Launch Controller or a similar more powerful controller.