{
  "open_checklist_version": "1.0",
  "id": "schweizer-sgs-2-33a",
  "title": "Schweizer SGS 2-33A — Normal Procedures and Launch Emergencies",
  "description": "A glider, included to exercise the parts of the schema that a powered-aeroplane corpus never reaches: no engine, a launch phase with no equivalent in powered flight, and emergency procedures that are entirely about the tow. Wording is the contributor's own; procedures reflect ordinary US club practice for the type.",
  "aircraft": {
    "make": "Schweizer",
    "model": "SGS 2-33",
    "variant": "A",
    "category": "glider",
    "engine": [
      {
        "make": "None",
        "model": "Unpowered",
        "type": "none",
        "count": 1
      }
    ],
    "propeller": "none",
    "gear": "skid"
  },
  "units": {
    "airspeed": "mph",
    "altitude": "ft",
    "weight": "lb"
  },
  "provenance": {
    "source": {
      "kind": "none",
      "notes": "No Schweizer flight manual was consulted. Written from general knowledge of two-seat training glider operations and standard US signals and procedures. Weak-link and placard limitations, and all airspeeds, are omitted: they belong to the individual glider's flight manual and weight-and-balance paperwork."
    },
    "transcription": {
      "method": "authored",
      "tool": "claude-opus-5",
      "date": "2026-08-10"
    },
    "contributors": [
      {
        "name": "Open Checklists project (initial schema examples)",
        "role": [
          "author"
        ]
      }
    ],
    "revision": {
      "file_revision": "0.1.0",
      "updated": "2026-08-10"
    }
  },
  "verification": {
    "source_fidelity": "not_applicable",
    "operational_review": "none",
    "completeness": "partial",
    "known_issues": [
      {
        "severity": "safety_defect",
        "description": "No airspeeds or weight limits. Club and site procedures for signals, release points and pattern entry vary and override anything here.",
        "location": "whole file"
      },
      {
        "severity": "content_gap",
        "description": "Aerotow only. No winch or auto-tow launch procedures, and no spin recovery section.",
        "location": "whole file"
      }
    ]
  },
  "rights": {
    "status": "original_expression",
    "corpus_license": "CC-BY-4.0",
    "redistribution": "attribution_required"
  },
  "sections": [
    {
      "id": "preflight",
      "phase": "preflight_inspection",
      "title": "Daily and Preflight Inspection",
      "items": [
        {
          "type": "action",
          "text": "Canopy and latches",
          "response": "CONDITION, SECURE",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Controls",
          "response": "FREE, FULL TRAVEL, CORRECT SENSE",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Control connections and safeties",
          "response": "CHECKED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Spoilers",
          "response": "OPERATE, LOCK CLOSED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Tow release",
          "response": "OPERATES AND RESETS",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Wings, fuselage, tail surfaces",
          "response": "NO DAMAGE, FABRIC INTACT",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Tailwheel or skid, main wheel and tire",
          "response": "CONDITION",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Pitot and static",
          "response": "UNOBSTRUCTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Ballast and placards",
          "response": "CORRECT FOR OCCUPANTS",
          "tickable": true
        }
      ]
    },
    {
      "id": "prelaunch",
      "phase": "before_takeoff",
      "title": "Pre-Launch",
      "items": [
        {
          "type": "action",
          "text": "Straps",
          "response": "TIGHT, ALL OCCUPANTS",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Instruments",
          "response": "ALTIMETER SET, ZEROED AS REQUIRED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Controls",
          "response": "FREE, CORRECT",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Canopy",
          "response": "CLOSED AND LOCKED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Trim",
          "response": "SET",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Spoilers",
          "response": "CLOSED AND LOCKED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Tow rope and weak link",
          "response": "CORRECT, ATTACHED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Wind and traffic",
          "response": "CHECKED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Launch emergency plan",
          "response": "BRIEFED ALOUD",
          "tickable": true,
          "detail": "State the plan for a rope break below 200 feet, between 200 feet and pattern altitude, and above pattern altitude, and the landing option for each."
        },
        {
          "type": "action",
          "text": "Wing runner and tow pilot",
          "response": "READY, SIGNAL GIVEN",
          "tickable": true
        }
      ]
    },
    {
      "id": "rope-break-low",
      "phase": "other",
      "phase_label": "Rope break or tow failure below 200 feet",
      "title": "Rope Break Below 200 Feet",
      "criticality": "emergency",
      "condition": "Tow rope breaks or tow is released below approximately 200 feet AGL",
      "items": [
        {
          "type": "warning",
          "text": "Do not attempt a turn back to the runway from low altitude. Land ahead, accepting whatever is in front of the glider.",
          "tickable": false
        },
        {
          "type": "action",
          "id": "rbl-attitude",
          "text": "Nose",
          "response": "LOWER TO APPROACH ATTITUDE",
          "memory_item": true,
          "tickable": true
        },
        {
          "type": "action",
          "id": "rbl-release",
          "text": "Tow release",
          "response": "PULL, TWICE",
          "memory_item": true,
          "tickable": true
        },
        {
          "type": "action",
          "id": "rbl-spoilers",
          "text": "Spoilers",
          "response": "AS REQUIRED",
          "memory_item": true,
          "tickable": true
        },
        {
          "type": "challenge",
          "text": "Land straight ahead",
          "tickable": true
        }
      ]
    },
    {
      "id": "rope-break-high",
      "phase": "other",
      "phase_label": "Rope break or tow failure at or above pattern altitude",
      "title": "Rope Break At or Above Pattern Altitude",
      "criticality": "abnormal",
      "condition": "Tow failure with sufficient height to fly a pattern",
      "items": [
        {
          "type": "action",
          "id": "rbh-release",
          "text": "Tow release",
          "response": "PULL, TWICE",
          "memory_item": true,
          "tickable": true
        },
        {
          "type": "action",
          "text": "Airspeed",
          "response": "ESTABLISH BEST GLIDE",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Landing area",
          "response": "SELECTED",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Pattern",
          "response": "FLOWN, ADJUSTED FOR HEIGHT",
          "tickable": true
        },
        {
          "type": "reference",
          "text": "Continue with the normal approach and landing checklist.",
          "tickable": false,
          "reference": {
            "section_id": "approach-landing"
          }
        }
      ]
    },
    {
      "id": "approach-landing",
      "phase": "before_landing",
      "title": "Approach and Landing",
      "items": [
        {
          "type": "action",
          "text": "Straps",
          "response": "TIGHT",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Landing area",
          "response": "CONFIRMED CLEAR",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Airspeed",
          "response": "APPROACH SPEED SET FOR CONDITIONS",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Spoilers",
          "response": "USED TO CONTROL GLIDE PATH",
          "tickable": true
        },
        {
          "type": "note",
          "text": "Plan to land long rather than short. Undershooting is not recoverable in a glider.",
          "tickable": false
        }
      ]
    },
    {
      "id": "after-landing",
      "phase": "after_landing",
      "title": "After Landing",
      "items": [
        {
          "type": "challenge",
          "text": "Maintain wings level with aileron until the glider stops",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Spoilers",
          "response": "OPEN",
          "tickable": true
        },
        {
          "type": "action",
          "text": "Canopy",
          "response": "AS REQUIRED",
          "tickable": true
        },
        {
          "type": "challenge",
          "text": "Clear the runway and report clear",
          "tickable": true
        }
      ]
    }
  ]
}