Global Task Force Overlord Knowledge Base

Shallower 2.5° Glidepath & Flared Profile

The JF-17 Thunder is configured with a shallower nominal final glidepath of 2.5° and a flared landing touchdown profile. Float sink rate sensitivity is stricter than default at -40 ft/min.

Supported Airframes

JF-17 — Deka Ironwork Simulations JF-17 Thunder

Profile Highlights & Specifics

1. 2.5° Final Glidepath Slope

Calibrated to a nominal 2.5° glideslope angle (compared to 3.0° on Western fighters), aligning with Chinese/Pakistani recovery standards and HUD bracket cues.

2. Flared Landing Touchdown Engine (`flared_landing: true`)

Aerodynamic Flare: Flare is required to cushion touchdown below -800 ft/min.
Strict Float Limit: Touching down long (> 25% TDZ) with a sink rate shallower than -40 ft/min triggers the FLT float penalty (-0.2 pts).

3. Bank Angle Limits (Up to 80.0°)

Permits aggressive overhead pattern turns up to 80.0° bank.

4. Dynamic Speed Consistency

Evaluated on approach speed stability (standard deviation ≤ 15.0 kts) rather than a fixed nominal knot target.

Key Parameters & Tolerances

Parameter	Value	Description
Pattern Altitude Range	`1,000 – 2,500 ft`	Standard military overhead pattern floor
Downwind Spacing	`0.7 – 2.0 NM`	Standard pattern lateral corridor
Max Bank Angle	`80.0°`	Tactical break bank limit
Max Turn G	`3.5 G`	Pattern turn load factor ceiling
Final Glidepath Angle	`2.5°`	Shallower 2.5° nominal glideslope
Target Approach Speed	Dynamic	Evaluated on speed consistency (Std Dev ≤ 15 kt)
Hard Touchdown Limit	`-800 ft/min`	Standard gear structural threshold
Float Touchdown Limit	`> -40 ft/min`	Strict -40 fpm float threshold on deep landings
Touchdown Zone Target	`3.0% – 25.0%`	First quarter of runway length
Touchdown Lineup Tolerance	`15.0 m`	Lateral centerline offset limit

Complete Configuration (`JF17.json`)

{
  "aircraft_type": "JF-17",
  "display_name": "JF-17 Thunder",
  "flared_landing": true,
  "pattern_alt_ft": 2500.0,
  "pattern_alt_min_ft": 1000.0,
  "pattern_alt_max_ft": 2500.0,
  "downwind_alt_tol_ft": 300.0,
  "downwind_alt_max_std_ft": 75.0,
  "downwind_alt_max_spread_ft": 200.0,
  "upwind_alt_max_std_ft": 80.0,
  "upwind_alt_max_spread_ft": 250.0,
  "crosswind_alt_max_spread_ft": 500.0,
  "base_alt_balloon_tol_ft": 150.0,
  "final_glidepath_rms_tol_ft": 50.0,
  "downwind_spacing_min_nm": 0.7,
  "downwind_spacing_max_nm": 2.0,
  "max_turn_bank_deg": 80.0,
  "max_turn_g": 3.5,
  "final_glidepath_deg": 2.5,
  "final_glidepath_tol_ft": 80.0,
  "threshold_crossing_height_ft": 50.0,
  "final_lineup_mean_tol_m": 15.0,
  "final_lineup_rms_tol_m": 30.0,
  "final_speed_target_kts": null,
  "final_speed_max_std_kts": 15.0,
  "touchdown_centerline_tol_m": 15.0,
  "sink_rate_hard_fpm": -800.0,
  "sink_rate_float_fpm": -40.0,
  "tdz_min_pct": 3.0,
  "tdz_target_max_pct": 25.0,
  "tdz_long_max_pct": 40.0,
  "score_weights": {
    "downwind_max_pts": 1.0,
    "turn_max_pts": 1.0,
    "final_max_pts": 1.5,
    "touchdown_max_pts": 1.5
  }
}