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First name Last name Personal ID number Mark Launch Systems July 11th, 2022 First part - Closed book Each question is worth 1 point. The student must obtain at least 6 points otherwise the second part of the exam will not be corrected. WRITE THE ANSWERS IN THIS SHEET Scenario – Reusable space launcher The reusability of rocket stages is an important step for the reduction of launch price. There are two main strategies for the recovery, so far and they are competing for cost and technical complexity. Answer to the following questions, having in mind these kinds of scenario. Read carefully every question. Space-X kind recovery mission RocketLab kind recovery mission 1. Do you agree with the following statements? Mark them as true (T) or false (F) (correct answer +2, wrong answer -1, no answer 0) First stage recovery and reuse always brings to economic savings Space-X introduces a toss-back maneuver in the recovery trajectory RocketLab (right picture) parachutes the missile on ground and then it recovers it Space Shuttle Boosters were designed as reusable/refurbishable The difference between reusability and refurbishability is in the cost of the process Launch Systems Page 1 2. What kind of guidance system would you select for a SpaceX first stage recoverable launcher? (two valid questions. The selection of a wrong answer invalidates the question.) Gyroscopes Terrain recognition Radar homing GPS Star tracker Infrared seeker 3. What recovery system would you select among the two reported in the scenario and why? (there is not a correct/wrong answer, I evaluate the technical motivation of the choice) 4. Think of the VEGA launch vehicle. Can we make the first stage recoverable with the current technology? Why? Launch Systems Page 2 5. You need to flow down the specifications…