RC Plane Calculator: Wing Loading, Stall Speed, CG & Tail Volume
Calculate RC wing area, loading, stall speed, MAC and CG. Compare tail volume and electric power targets, with a planform drawing and a separate flying-wing CG rule.
Robot drive sizing, robot-arm kinematics and drone flight time: calcs for mobile robots, manipulators and multicopters, with drawings you can move.
Calculate RC wing area, loading, stall speed, MAC and CG. Compare tail volume and electric power targets, with a planform drawing and a separate flying-wing CG rule.
Estimate multicopter hover time from battery energy and rotor physics. Check thrust-to-weight ratio and payload limits for a chosen endurance target.
Solve forward and inverse kinematics for a planar two-link arm, compare elbow up/down, and calculate static joint torques from link masses and payload.
Size wheel and motor torque, speed, reduction ratio and battery energy for an uphill wheeled robot. Check traction and compare a candidate motor at its loaded operating point.
Estimate humanoid robot battery life, ZMP balance margins and hip/knee stance torque. Animate a walking step and compare battery, gait and duty-cycle assumptions.
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