{"schema": "too.foo.history.image-prompt.v1", "slug": "1939-08-27-a-heinkel-he-178-the-first-turbojet-powered-aircraft-flies-for-the-fi", "release": "4b157fe58dc3a255", "image_key": "1939-08-27-a-heinkel-he-178-the-first-turbojet-powered-aircraft-flies-for-the-fi", "image_sha256": "4083967c8431f0b70c555764d6502ea12e155e435f50f42ebfeeaa35248a7fad", "job": "20260827-004333-tier2", "model": "Ideogram 4 (fp8)", "preset": "V4_DEFAULT_20", "steps": 20, "seed": 20260823, "width": 1216, "height": 832, "caption_mode": "json", "caption": {"high_level_description": "The 7.5 m Heinkel He 178 flies three metres above the grass from left to right, its retractable taildragger gear fully extended and one pilot enclosed. The unobstructed nose intake and refractive wake emerging from the tail identify turbojet propulsion mid-flight. Ground-level edge of the Heinkel works airfield at Rostock-Marienehe, with clipped summer grass in the foreground and distant low workshop roofs and a treeline softened into generic context. The round nose intake is flush with the forward fuselage and shares its central axis. The exhaust wake begins in direct contact with the tail outlet and trails left, opposite the aircraft's rightward motion. Each landing strut joins its wheel hub; all three tires hang clear of the grass while aerodynamic lift supports the level wings. The pilot sits inside the cockpit with both hands contacting the controls and helmet below the closed canopy. The aircraft shadow rests on the grass down-right of the airframe and remains separated from the suspended wheels. The fuselage is 7.5 m long and spans about two-thirds of the frame; its three wheels hang roughly 3 m above the grass. It is 27 August 1939: One test pilot in a leather flying helmet, goggles, and plain flying coveralls, largely concealed by the cockpit.; Riveted duralumin fuselage, wooden wings, rubber tires, painted steel gear struts, grass airfield.; Single internally mounted HeS 3B turbojet, nose intake, tail exhaust, enclosed cockpit, fully extended retractable taildragger landing gear. Localized transparent refractive displacement begins immediately behind the tail outlet and weakens rapidly across the distant grass background.", "style_description": {"aesthetics": "Secretive, workmanlike proof of a new propulsion method.. Documentary photographic realism: subtle film grain, believable wear on every material, candid imperfect framing.", "lighting": "Single low daylight source from upper left through thin cloud; the soft aircraft shadow falls down-right, with matching highlights on intake lip and fuselage.", "photo": "70mm, f/5.6, 35 m, Candid monochrome low three-quarter side view, aircraft off-center right, horizon slightly imperfect, soft foreground grass and distant workshops, subtle 1939 film grain.", "medium": "photograph, A fast monochrome exposure freezes the aircraft while retaining subtle heat-haze distortion against the softly focused horizon.", "color_palette": ["#1E1913", "#4A3B28", "#8A7350", "#C9B892", "#2B2B2A"]}, "compositional_deconstruction": {"background": "Ground-level edge of the Heinkel works airfield at Rostock-Marienehe, with clipped summer grass in the foreground and distant low workshop roofs and a treeline softened into generic context. Single low daylight source from upper left through thin cloud; the soft aircraft shadow falls down-right, with matching highlights on intake lip and fuselage.", "elements": [{"type": "obj", "bbox": [250, 170, 590, 860], "desc": "Compact shoulder-wing prototype, 7.5 m nose-to-tail, with a riveted duralumin shell, straight wooden wings, small enclosed cockpit, and directional highlights broken by uneven panel wear."}, {"type": "obj", "bbox": [350, 780, 505, 875], "desc": "Round intake centered in the forward fuselage, an unobstructed dark opening with a clean metal lip and deep tonal falloff beneath the cockpit."}, {"type": "obj", "bbox": [500, 350, 740, 730], "desc": "Two main struts descend beneath the wing roots and one small tailwheel hangs under the rear fuselage; all three tires are fully extended."}, {"type": "obj", "bbox": [310, 540, 430, 630], "desc": "Exactly one seated pilot wears a leather flying helmet and goggles; canopy framing and three-quarter angle obscure facial detail while both hands remain on cockpit controls."}, {"type": "obj", "bbox": [360, 55, 530, 180], "desc": "A narrow transparent shimmer begins at the circular tail outlet and trails left, locally displacing the distant grass horizon."}, {"type": "obj", "bbox": [690, 0, 1000, 1000], "desc": "Short grass covers firm level ground, varied by wheel-flattened patches and one pale worn strip running diagonally into soft distance."}, {"type": "obj", "bbox": [700, 310, 820, 840], "desc": "One soft aircraft-shaped shadow lies on the grass beneath and down-right of the airborne machine, separated clearly from every tire."}]}}, "rendered_input": "{\"high_level_description\": \"The 7.5 m Heinkel He 178 flies three metres above the grass from left to right, its retractable taildragger gear fully extended and one pilot enclosed. The unobstructed nose intake and refractive wake emerging from the tail identify turbojet propulsion mid-flight. Ground-level edge of the Heinkel works airfield at Rostock-Marienehe, with clipped summer grass in the foreground and distant low workshop roofs and a treeline softened into generic context. The round nose intake is flush with the forward fuselage and shares its central axis. The exhaust wake begins in direct contact with the tail outlet and trails left, opposite the aircraft's rightward motion. Each landing strut joins its wheel hub; all three tires hang clear of the grass while aerodynamic lift supports the level wings. The pilot sits inside the cockpit with both hands contacting the controls and helmet below the closed canopy. The aircraft shadow rests on the grass down-right of the airframe and remains separated from the suspended wheels. The fuselage is 7.5 m long and spans about two-thirds of the frame; its three wheels hang roughly 3 m above the grass. It is 27 August 1939: One test pilot in a leather flying helmet, goggles, and plain flying coveralls, largely concealed by the cockpit.; Riveted duralumin fuselage, wooden wings, rubber tires, painted steel gear struts, grass airfield.; Single internally mounted HeS 3B turbojet, nose intake, tail exhaust, enclosed cockpit, fully extended retractable taildragger landing gear. Localized transparent refractive displacement begins immediately behind the tail outlet and weakens rapidly across the distant grass background.\", \"style_description\": {\"aesthetics\": \"Secretive, workmanlike proof of a new propulsion method.. Documentary photographic realism: subtle film grain, believable wear on every material, candid imperfect framing.\", \"lighting\": \"Single low daylight source from upper left through thin cloud; the soft aircraft shadow falls down-right, with matching highlights on intake lip and fuselage.\", \"photo\": \"70mm, f/5.6, 35 m, Candid monochrome low three-quarter side view, aircraft off-center right, horizon slightly imperfect, soft foreground grass and distant workshops, subtle 1939 film grain.\", \"medium\": \"photograph, A fast monochrome exposure freezes the aircraft while retaining subtle heat-haze distortion against the softly focused horizon.\", \"color_palette\": [\"#1E1913\", \"#4A3B28\", \"#8A7350\", \"#C9B892\", \"#2B2B2A\"]}, \"compositional_deconstruction\": {\"background\": \"Ground-level edge of the Heinkel works airfield at Rostock-Marienehe, with clipped summer grass in the foreground and distant low workshop roofs and a treeline softened into generic context. Single low daylight source from upper left through thin cloud; the soft aircraft shadow falls down-right, with matching highlights on intake lip and fuselage.\", \"elements\": [{\"type\": \"obj\", \"bbox\": [250, 170, 590, 860], \"desc\": \"Compact shoulder-wing prototype, 7.5 m nose-to-tail, with a riveted duralumin shell, straight wooden wings, small enclosed cockpit, and directional highlights broken by uneven panel wear.\"}, {\"type\": \"obj\", \"bbox\": [350, 780, 505, 875], \"desc\": \"Round intake centered in the forward fuselage, an unobstructed dark opening with a clean metal lip and deep tonal falloff beneath the cockpit.\"}, {\"type\": \"obj\", \"bbox\": [500, 350, 740, 730], \"desc\": \"Two main struts descend beneath the wing roots and one small tailwheel hangs under the rear fuselage; all three tires are fully extended.\"}, {\"type\": \"obj\", \"bbox\": [310, 540, 430, 630], \"desc\": \"Exactly one seated pilot wears a leather flying helmet and goggles; canopy framing and three-quarter angle obscure facial detail while both hands remain on cockpit controls.\"}, {\"type\": \"obj\", \"bbox\": [360, 55, 530, 180], \"desc\": \"A narrow transparent shimmer begins at the circular tail outlet and trails left, locally displacing the distant grass horizon.\"}, {\"type\": \"obj\", \"bbox\": [690, 0, 1000, 1000], \"desc\": \"Short grass covers firm level ground, varied by wheel-flattened patches and one pale worn strip running diagonally into soft distance.\"}, {\"type\": \"obj\", \"bbox\": [700, 310, 820, 840], \"desc\": \"One soft aircraft-shaped shadow lies on the grass beneath and down-right of the airborne machine, separated clearly from every tire.\"}]}}", "prompt_sha256": "47515c5395b81ee0fc8294884040ec7c5c953477a981d2ccd078439146020d3a"}