A four-seat tandem-wing electric vertical take-off and landing aircraft was conceptually designed, and a nominal quarter-scale prototype was fabricated and tested in hovering flight. The design payload and target mission range were 340 kg and approximately 100 km, respectively. Eight lift rotors and one pusher propeller were arranged in a lift-and-cruise configuration. At a representative full-scale mass of 1,720 kg, a hover-to-maximum-thrust ratio of 0.65 required a total maximum static thrust of 25.96 kN. A preliminary maneuver envelope gave a positive stall speed of 117.5 km/h and a maneuvering speed of 229.1 km/h under the adopted assumptions. The subscale component mass budget was 18.125 kg. A separate 15.945 kg component configuration gave a longitudinal center of gravity of 979 mm aft of the nose; the two configurations were distinguished in the mass-property assessment. The fabricated prototype completed hovering flight in a GPS-assisted position-hold mode, and stable hovering was observed. The test confirmed initial hovering capability of the integrated prototype. Full-scale performance and quantitative flight-control accuracy were outside the evaluation presented here.
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Abstract 1. 서론 2. 4인승 항공기의 개념설계 2.1 임무 및 요구조건 2.2 형상 선정 및 모델링 2.3 공력 모델 구성 3. 중량 및 기초 성능 산정 3.1 중량 및 무게중심 산정 방법 3.2 리프트 로터 및 호버 동력 3.3 고정익 비행 모드의 V–n 선도 4. 축소기 설계 및 제작 4.1 축소비와 구성품 적용 4.2 부품 구성 및 중량 정리 4.3 부품 기반 무게중심 계산 4.4 제작 및 조립 5. 축소기 호버링 시험 5.1 시험 기체 및 비행모드 5.2 호버링 시험 결과 6. 결론 References