AT 209 – UAS Systems
Date: 10-2-2025
Group Members: Mason Cramer, Joseph Salcik, Erik Krellner, Ryan Shurtleff, Trigg Strawhorn
Airframe Identification
WindRacers uses the MFE Believer airframe as a scaled trainer before pilots progress to the ULTRA. For this task, we unpacked the Believer kit, identified its components, and documented their function and role in flight operations.
Electronics Familiarization
The electronics for the Believer are not included in the standard kit—they’re custom selected based on WindRacers training specs. This section breaks down the Purdue Bill of Materials (BOM) and compares it with parts listed in the build blog.
Similarities differences to blog
Build Instructions Breakdown
Our group reviewed the external blog’s full build walkthrough and rewrote major steps in simpler, more clear language. We highlighted key failure points to avoid during assembly.
Frame Assembly
Glue lock mounts into foam Glue on the adapters onto the tail fins Glue in motor mounts (be careful as not to shift the foam as this needs to be as accurate as possible) Glue on tail fin adapter on half of fuselage that does not have lock mounts on it Glue plywood pieces on inside of fuselage where the carbon spars go through Glue on servo mount for parachute bay Glue on screw bases for nacelle covers Glue on one of the wing adapters (other will be glued on after fuselage is glued together) Glue fuselage halves together Install carbon tubes into inside of fuselage Glue on second wing adapter Glue in the battery plate Take the time to test fit the wings and tail, ensuring that they do not wobble.
Servos, tail, and motor assembly:
Install control horns on all control surfaces Install tail servos (Install them towards the front of the fuselage) Install circular servo disc Assemble push rods and install Install cover on aileron servos Electronics