6-inch long-range quad

You'll get a quadcopter for 6-inch propellers, sized for a long flight with a small camera, using real motors, propellers and a real battery from Speed's parts catalogue. Speed checks thrust, balance, arm stress and flight time as it builds.

1. 1Step 1: Paste the prompt, then give the brief

   Start a new chat, paste the Speed prompt and send it. When Claude asks What do you want to build?, type:

   Type thisCopy

   A 6-inch long-range quadcopter for about 20 minutes of flight, carrying a 150 g camera. Use real catalogue motors, propellers and battery.

   Then switch to your Speed tab to watch.

2. 2Step 2: Read the plan

   Claude posts its plan first. You'll see it in the Agent panel in Speed. It lists each requirement and marks it:

   • Stated, from your brief: 6-inch propellers, about 20 minutes of flight, a 150 g camera.
   • Assumed, chosen by Claude: for example the battery's cell count, the frame material (usually carbon fibre) and a thrust-to-weight target.

3. 3Step 3: Watch it build, stage by stage

   1. Start. Claude may load Speed's quadcopter template or a ready-made quad and resize it for 6-inch propellers, or start from scratch.
   2. Structure. The centre plates and four arms appear. Claude runs the physics check to make sure every part touches what it is attached to.
   3. Propulsion. Claude searches the catalogue for motors by size and thrust, and fits the chosen one to all four motor positions. Propellers go on, alternating clockwise and anticlockwise. The physics check now reports thrust-to-weight, torque balance, rotor clearance and propeller tip speed.
   4. Power and electronics. A real battery from the catalogue, plus the flight controller and speed controllers. The check now gives an estimated flight time and battery current.
   5. Payload and landing. The camera at the front and the landing feet. Claude takes a picture of the model to check nothing is floating or on the wrong side.

4. 4Step 4: Read the summary

   In the chat you'll get a few lines: the take-off mass, thrust-to-weight, estimated flight time, the verdict from the physics check, and every assumption. If the flight time misses 20 minutes, Claude says by how much and what it would change.

Follow-ups to try#

Run FEA for a 3 g landing#

Run FEA for a 3 g hard landing and tell me the weakest part.

Claude sets a load case named "Hard landing, 3 g", supported at the landing feet, and runs the FEA. The canvas is painted by stress. You'll get the most loaded part, its safety factor and the largest deflection.

Swap the motors and compare#

Swap the motors for the next size up and compare.

Claude finds the next larger motor in the catalogue, fits it to all four positions, runs the physics check again and shows before and after: mass, thrust-to-weight and flight time. Bigger motors usually add thrust and mass and cost flight time.

Make the one-pager#

Make the one-pager.

Claude drafts a one-page drawing sheet with views, a parts list and notes. It opens in your Speed tab.

Push the endurance#

Make it fly 30 minutes without dropping the camera. Change one thing at a time and show me the numbers after each change.

Claude works the biggest lever first, usually the battery, and reports what each change cost elsewhere.

What to check before you trust it#

• Flight time comes from a hover-power estimate. Real flight time is lower in wind, with aggressive flying and as the battery ages.
• Motor and propeller figures come from the catalogue's datasheet entries. Check them against the maker's current datasheet.
• The physics check and FEA are screening grade. An engineer must review the design before it is built.

Something unclear or wrong? Tell us at support@tryspeed.ai.