Leslie Elwood Erik Nelson Jacob East Joe Shields Brandon Bonner LV3 Capstone Project Leslie Elwood Erik Nelson Jacob East Joe Shields Brandon Bonner

Mission Statement Design and Fabricate 2 significantly lighter airframes using processes developed by the 2015 capstone team.

What we have: LV2 Aluminum and fiberglass (heavy) Small diameter Simple geometry

What we need: LV3 Carbon fiber (light and strong) Large diameter Aerodynamic Well documented

Choose / Create a Nose Cone design based on the same parameters. Deliverables (PDS) *Must* Research and Design Choose / Create fin design based on stability, weight, flutter, and heating characteristics for Mach 3 and expected maximum dynamic pressure. Choose / Create a Nose Cone design based on the same parameters.

Deliverables (PDS) *Must* Manufacture Motor module, payload avionics module, Rail buttons and Fin Canister for 2 complete LV3 specified rockets. All modules made from carbon fiber and co-molded with aluminum coupling rings

Deliverables (PDS) *Must* Testing Non-destructively test all pieces. Destructively test one module Documentation Fully document design and manufacturing process. Create a handbook for manufacturing carbon fiber modules for future launch vehicles

Deliverables (PDS) *Should* Complete 3 of each module. Complete CF nose cone. Metal leading edges on fins. Use lean methods to streamline manufacturing process of all components

Process Flow Research Design Procure Document Analyze Launch 12 data to determine fluid regime. Research nose cone shapes for given flow regime. Fin designs for stabilization at given flow speed. Design Choose / Modify existing designs or create design for nose cone and fins. Design needed tooling to create nose cone and fins / fin can. Attachment method for fins to fin can. Procure Secure additional funding sources. Determine material need. Identify available products. Solicit donations of materials. Manufacture Create tooling for nose cone and fins. Machine additional coupling rings. Make cylindrical modules. Make fins. Make nose cone. Attach fins to fin canister. Document Create a manual that documents our process and passes on adequate knowledge to subsequent groups to recreate our process with minimal training.

Fin Design Complex Delta Tapered (custom) Tapered Half Hex Tapered Half Chevron Swept Back

Fin Design Design Elements Overall Shape Edge Profile and Material Attachment Method to Canister Possible Aluminum Structure Design Factors Fluid Drag Flutter Weight Strength

Nose Cone Design

Nose Cone Design Design Elements Overall Shape Tooling Manufacturing Process Material Design Factors Fluid Drag Mach Characteristics RF Transparency? Strength

Estimated Budget Material Qty Product Est. Cost 6061 T6 Aluminum 4 ft x 8” round bar Coupling rings, nose cone mandrel ,Rail buttons? $1400 Prepreg High Temp Cure Carbon Fiber Est 60 yd Nose cone, Fins, Airframe $3500 3M epoxy film adhesive Est. 60 yd $1200 Curing Materials: Shrink tape, Flash tape Mold release agent, pretreatment chemicals $1000-$1500 Est Total $6200

Timeline Task Date Purchase / Acquire material 2/19 Machine coupling rings 3/4 First CF pieces fully cured Fin frames machined 3/11 Nose cone mandrel machined 3/18 Airframe modules complete 4/1 Fins complete 3/25 Fin cans complete 4/15 Nose cone complete 4/29 Documentation complete 5/13

Conclusion portland State Aerospace Society: because space needs more Vikings!