Related by context. Frequent words. (Click for all words.) 51 yaw 48 velocity 46 gyroscopic 46 whooshes 46 whirling 46 velocities 45 propeller blades 44 juddering 44 whooshing 44 jerky movements 44 wobbling 44 mechanically 44 kinematics 44 helicopter rotors 44 parabola 44 coiling 44 counter clockwise 44 centrifugal force 44 flail 43 amplitudes 43 flailing 43 wiggling 43 gliding 43 propellers 43 kinematic 43 zooming 43 torques 43 amplitude 43 oscillations 42 swooshing 42 pivoting 42 sideways 42 pulsations 42 zig zagging 42 twisting 42 curvature 42 thump thump thump 42 angles 42 jerking 42 sliding sideways 42 vibrating 42 heaving 42 flapping wings 41 throttle 41 toolpath 41 whirr 41 jerkiness 41 periscope 41 glide 41 Z axis 41 pronation 41 lurching 41 torsion 41 tilting 41 clunking 41 vibratory 41 gimbal 41 perpendicularly 41 bobbing 40 flairs 40 oscillating 40 bends 40 noiselessly 40 rotator 40 torsional 40 undulated 40 angle 40 parabolas 40 bending 40 dimpling 40 rhythmical 40 deformation 40 hydraulically 40 convex 40 keels 40 curves 40 infinitely variable 40 trajectories 40 undulation 40 pinging 40 vibrations 39 herky jerky 39 swiveling 39 maneuverability 39 radial 39 loops 39 clunk 39 counterclockwise 39 undulate 39 vibration 39 windup 39 controllability 39 whirring sound 39 amidships 39 uneven terrain 39 flapping 39 warping 39 cone 39 canted 39 paddles 39 torque