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Always wondered why both New Shepard and Falcon 9 don't use simple, reliable, inexpensive and lightweight drogue (big enough to slow down but small enough not to drift off course) chutes to help with descent stability and control of their re-useable rockets. If military parachute cargo drops and expert skydivers can pinpoint their landings consistently, why can't they apply their control expertise to their return systems. Maybe adding another 'failure' complexity.
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