Week 4 Propulsion Evidence Log

Do not summarize the propulsion lessons. Defend a configuration.

Use the fictional motor–propeller evidence from Week 4 and write a short engineering record for a mission reviewer.

Configuration snapshot

Record the configuration you are defending:

• aircraft mass;
• motor/propeller option;
• ESC limit from the supplied packet;
• hover or test current;
• thrust evidence;
• thermal trend;
• mission type.

Tradeoff graph

Draw a simple two-axis graph or table comparing at least two propulsion options on two of these variables:

• thrust;
• current demand;
• heat trend;
• endurance;
• clearance;
• mass.

Then add one sentence explaining why “highest thrust” is not automatically the best result.

Change-control decision

For the proposed propulsion change, write:

I would accept for next controlled test / revise / reject this configuration because...

Your reason must cite a specific limit or mission requirement.

What did the extra thrust cost?

Answer in one paragraph. Follow the effects upstream and downstream: motor load, current, ESC margin, battery demand, heat, frame/clearance, and mission endurance.

You do not need to mention every variable. Choose the ones supported by the supplied evidence.

Evidence limit

Finish these two lines:

The bench/static evidence supports...

The bench/static evidence cannot prove...

Exit standard

The log is ready when a reader can see the propulsion benefit, the electrical or thermal cost, the system limit, and the mission reason behind your final configuration decision.