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InletDuctEvaluator.html v0.1.33 - 2026-09-22 (Created from TOOLtemplate.html v0.1.6)

Inlet Duct Evaluator

Evaluate inlet-to-compressor centerline offset against digitized diffuser-design guidelines.

Choose or drop a JET11 fileJET11 .xlsm or .xlsx workbook, or JET JSON export
No file loaded.

Aircraft preview

Load a JET11 file to display the aircraft.
Drag to rotate · wheel to zoom

Inlet duct offset evaluation

Digitized inlet duct offset design guidelineRegion A is the established diffuser design region. Region B requires diffuser design methods. The imported aircraft design point appears after a JET file is loaded.

Load a JET11 workbook or JSON file to place its inlet-duct design point on the guideline.

Offset ratios use compressor-face coordinates relative to the inlet and are plotted as magnitudes. This screens centerline offset only; area ratio, throat aspect ratio, and length-to-engine-diameter also affect guideline applicability.

Inlet S-ducting

An S-shaped inlet hides the reflective engine face from direct radar line of sight. Drag the inlet or intermediate spline point in either view; the compressor face remains fixed. NOTE: these are 2-D projections and reflections for instructional purposes only.

LaTeX: \frac{P}{P_0}=(1-A)^nPP0=(1−A)n
Top view · lateral offset ΔY
Side view · vertical offset ΔZ
Top-view bounces—
Top returning strength—
Side-view bounces—
Side returning strength—

Load a JET11 file to preset both views from its inlet, compressor-face, and engine-diameter geometry.

JSON Viewer
Load a JET11 file to populate the JSON structure.