This bundle is exclusively for entrants of UKRoC 2020/21 e.g. schools, scouts and youth groups. If you are >not< going to go for the competition, please order these items a la carte.
This is more than a bundle of model rocket bits - it is the foundation for a winning entry!
This rugged, slim vehicle is capable of being powered by either a single 29mm composite (e.g. Cesaroni) motor IF available or three or four 18mm Klima motors (various C and D impulses) to achieve close to 80Ns maximum allowed power to get your payload to the contest altitude.
This is NOT a model rocket kit. This bundle is merely a collection of components that can be used in numerous ways and with additional components to meet the rules of the 2020/21 UKRoC contest.
The bundle includes:
- 2 x 50mm body tubes x 500mm long (one may be cut down for payload)
- 1 x 50mm Nose Cone
- 2 x 1.8m Kevlar harnesses
- 1 x 35mm nylon parachute
- 1 x 100mm x 100mm Nomex permanent wadding
- 1 x 50mm Baffle
- 1 x Fin Can
- 1 x 50mm motor mount for 4 x 18mm Klima motors
- 1 x 50mm Coupler
- 2 x 7mm Launch Lugs
- 1 x 50mm Bulkhead
No motors are included as you may choose to go with alternatives to 18mm clusters. The current starting point is 2 x D9-5 and 2 x C6-7 or C6-P. Different delays keep the body tube intact :-) 4 ejection charges at once are too powerful. You will also need Igniter Sticks and Tape Match for your cluster ignition.
This bundle can handle a single 24mm or 29mm mid power motor. Restricted supply has us recommending the readily available and more granular 18mm alternatives. Not to mention cheaper!
The thicker Klima 50mm body tubes are slimmer in diameter than the Estes BT-70 so there is a big aerodynamic advantage that more than negates the marginal increase in mass (lack of availability for 70mm nose cones is also an issue). The stronger Klima body tubes also are better for the numerous test flights needed to prove a winning design.
You may find that the supplied parachute is too small/large to achieve the competition duration specification. Choice of PerfectFlight altimeter is yours as is any accommodation design for the egg payload. The supplied fins may not suit all configurations - a case of suck it and see (as they say with Weber carburetor jetting). Alternatives are available.
We recommend Gorilla Epoxy for assembly. SpaceCAD is a great easy to use rocket design CAD program. We can offer substantial discounts for site licenses.