Solution

Preliminary UAV design

From an operational need to a sized fixed-wing concept - battery-electric or piston, conventional take-off or lift+cruise VTOL - with every assumption visible.

Use cases

Where MADETOOL fits in your programme

Size to a mission

Give endurance and/or range with payload, speeds and altitudes. MADETOOL floats MTOW until the energy or fuel needed for the most demanding mission case fits (sizing mode SIZE_TO_MISSION).

Check a fixed MTOW

Hold MTOW at your limit and evaluate what the aircraft can do (FIXED_MTOW): endurance, range, ceiling and speeds against your requirements.

Trade one design choice

Sweep a numeric design choice such as aspect ratio and compare MTOW, empty mass, endurance, range or energy across the points.

Screen requirements early

Find contradictory or incomplete requirements before any analysis: missing references, payload above MTOW, cruise above ceiling and more.

Supported aircraft

Two families, analysed end-to-end

Pick the one that matches your concept when you create a project. The website builds the requirements file from MADETOOL’s own example for that configuration.

Battery-electric lift+cruise VTOL

Separate lift rotors for take-off and landing, cruise propeller for wing-borne flight, shared battery. Hover, transition, reserves and hover control are part of the analysis.

Propulsion code 1VTOL code 14 or 8 lift rotors on booms

Piston-propeller, runway

Piston engine and propeller with fuel sizing, warm-up, take-off and landing distances on a stated runway surface.

Propulsion code 2VTOL code 0Runway take-off and landing

Typical inputs

What to have ready

  • Payload: maximum and normal mass, average electrical power.
  • Mission: endurance and/or range, cruise and maximum speed (with TAS/EAS), cruise and maximum altitude (with AGL/MSL).
  • Limits: maximum take-off mass, wingspan, length.
  • Operating site: elevation and hot-day ISA deviation, wind.
  • Component data: battery or fuel and engine, airfoil, avionics - or start from MADETOOL’s example data and replace it later.

Engineering disclaimer. MADETOOL produces conceptual/preliminary design estimates. Results are not validated, certified, or flight-ready and do not replace detailed engineering analysis, testing, or certification. Read the full disclaimer.

Preliminary UAV design | MADETOOL by ALATES