https://uwarg-docs.atlassian.net/wiki/x/J4Bbm

Attendance

• @Jerry Tian

• @Manasva Katyal

• @Roni Kant

• @Smile Khatri

• @Evan Janakievski

• @Sohee Yoon

• @Ryan Scomazzon

• @Daniel Puratich

Mechanical

Notes on manufacturing status.

Airframe

• manufacturing work is done

• no updates on fabrication side of things

• landing gear won’t be on airframe for easy wiring

• Will be assembled when spar is deburred

  • When would EE like it ready for harnessing?

    • For Feb 11 work session

Wing

• Spar had a wiring slot added to it, just needs to be deburred

• will electrical tape the wires

landing gear

• landing gear adapter arrived and safely stored in the red toolchest

• Has to be assembled and mounted to the air frame

• waiting on one part to be water jet for rear landing gear

  • waiting on this order, around 1 week

• front landing gear assembled

Empennage

• horizontal and vertical stabilizers complete

• control surfaces printed, and linkages made as well

• Only left to glue the vertical stabilizer to the horizontal stabilizer and test the servos for control surface deflection

  • last step

• Tested the control surface deflection, seems all good https://discord.com/channels/776618956638388305/1288305741932924973/1336472328229490698

  • plan to done by this thursday

•  

  Open

  

   

Servo temperature issue

• We shouldn’t fly eclipse if weather is under -10C, don’t fly if there is snow or super windy

• Most servos are rated for -20C, landing gear servo not checked yet → -15 C, so conclusion is to not fly if temperature is under -10C.

• will the servo going on to eclipse work under 0 C?

  • Aileron servo: HS-311 Servo - ServoCity®, rated for -20 to 60 C

  • 2.5kg Goteck Metal Gear Micro Servo - RobotShop ← servo bought for empennage

  • DongYang Smart Technology Co.,Ltd,servo,motor servo,robot servo,servo drive,mini servo,servo driver,rc servo,servo motors and drivers,servo controller,brushless servo,dc servo motor,wing servo,servo-metal,digital-servo,servo for robot,micro servo,mini servo motor,rc servo motor,micro servo motor,9g servo,high torque servo ← found more details here

  • Rated for -20 C to 60 C

  • Important to be careful just because manufacture says it’s rated for those temperatures that may not always be the case, there’s no warranties or anything, we have to test to confirm they work. Same like how cheap servos don’t always provide the max torque that the manufacturer claims.

  • Pixhawk 6X Autopilot Flight Controller – Holybro Store ← pixhawk operating temp -25 to 85 C. Shouldn’t fly below -20?

Everything Mech is in last drawer in the red toolbox.

flagpoles are on 1st row on mech shelf

Avionics/EE updates

• Harness Fixed Wing 2025 | Maiden Flight Electronics System Diagram

  • Will follow up on harness schematic tasks

• 6s Servo Module

  • efs

    • code is functional

    • quality of life testing blocked by ee, not enough hardware

  • ee

    • need 1 good board for eclipse

    • bringing up rev 2, 1 board assembly is done, validation this Saturday

• 6s power module (EFS)

  • efs

    • progress is happening,

    • MVP aim to be done post midterm, around march 1st

    • MVP functionalities:

      • battery voltage sensing

      • battery current sensing

  • ee

    • no progress so far

• Single servo driver

  • ee

    • needs 2

    • found 1 good board, need to make another board

    • ee working on the board bringup list, will follow up next week

  • efs

    • code is functional

    • can fly

• 24-5V buck

  • ee

    • is this ready to fly (fully validated) ?

    • not sure, @Kenny Na is confident board is fully validated, optional board, probably won’t pursue for maiden flight

• EE connectors are ordered, don’t think it arrived yet.

• Electronic component inventory status:

  • where they are @Nathan Green

Pilot Training - Foam Plane

• Crashed right after the throw ggs

• 2025-2-2 Autonomy + Foam Plane Flight test | Flight test debrief report

• ee to order servos that are rated for -30C https://ca.robotshop.com/products/dfrobot-micro-servo-motor

• we used same prop as houston, see data highlighted in red below

  Open

  

   

• should we calibrate ESC beforehand? if so how to calibrate?

• Lesson learned:

  • not enough thrust, next flight we can use smaller 3s battery, 2 props to save weight and generate more thrust

  • do outside full prop test

• next foam plane flight test:

  • buy off the shelf foam plane

  • takes around 2 weeks to arrive, probably during reading week

  • should be able to house px6 and other electronics.

• Foam plane program

  • request funding for engsoc and weef and mef

  • help people learn plane control

Timeline

• Eclipse Strapdown Test: March 1st/2nd

• Eclipse Maiden Flight Test: March 8th/9th

• another foam plane?