TURBINEWERK 9 · HALL 03
Twenty-four blade high-bypass fan A titanium fan disc whose speed increases with scroll or the thrust control.

ASSEMBLY RECORD · 137/175

TURBINE

The cathedral
that turns air.

3.41 m fan diameter 15:1 bypass ratio 24 hollow blades
FAN N1 08.0%
TIP / MACH0.18 TIP / M·S⁻¹61 STATEWINDMILL

Scroll the hall or spool with your thumb. Telemetry is live.

W9 / STATION 01
01

TWENTY-FOUR
RELIQUARIES

A blade is not a knife. It is a pressure surface, grown around a hollow core and polished until fingerprints become measurable defects.

01 / WIDE CHORD

One continuous sweep

Each 1.47 m blade twists 37 degrees from root to tip. The broad face moves more air with fewer parts, quieter wakes and less mass.

02 / HOLLOW TITANIUM

Strength with an empty heart

Two skins are diffusion-bonded around a honeycomb lattice at 920 °C. The finished blade weighs 17.84 kg; its void does most of the work.

03 / ROOT

The load enters here

A dovetail foot locks into the disc. At takeoff each root carries a centrifugal pull equivalent to 47 city buses, continuously, without ceremony.

Titanium fan blade metrology specimen A wide-chord fan blade whose inspection mode reveals its internal honeycomb lattice and bond seam. LEADING EDGE LATTICE VOID

FLOW ARCHITECTURE / STATION 02

NINETY PARTS
COLD. TEN PARTS
FIRE.

Animated cutaway of bypass and core air Cool blue bypass air flows around a gold hot core, illustrating a ninety to ten split.
90%BYPASS AIRCool mass flow · 1,310 kg/s
10%CORE AIRCombustion work · 146 kg/s
MASS FLOW1,456kg / second
×
VELOCITY CHANGE86metres / second
=
NET THRUST125kilonewtons

WERK 9 does not make thrust by throwing a little air very fast. It persuades an enormous volume to move a little faster. Efficiency is an argument made at scale.

DESTRUCTIVE PROOF / 06:14:32

THE DELIBERATE
EXPLOSION.

To certify the machine, WERK 9 first teaches it catastrophe.

At maximum fan speed, a shaped charge releases one blade at the root. Seventeen kilograms of titanium departs at 323 metres per second. The casing must catch it, keep its neighbours, and refuse to burn for fifteen seconds while the core decelerates.

This is not a spectacle of strength. It is a rehearsal for mercy. Cameras at 80,000 frames per second record the instant the aramid wrap swells 41 millimetres, spends the blade's energy, then holds.

“Nothing leaves the circle.”— Containment doctrine, Hall 03
T + 0.000
ROOT RELEASE
T + 0.004
CASE CONTACT
T + 0.011
ENERGY ARRESTED
T + 14.82
ROTOR AT REST

FINAL BUILD LEDGER / ENGINE N° W9-2047

TORQUE
AS SCRIPTURE.

Every joint is signed twice: once by the calibrated wrench, once by the technician who felt the metal settle.

Critical fastener closure record
STATIONJOINTTARGETANGLEWITNESS
F01FAN CONE / FORWARD680 N·m+42°LI / 07:18
F24BLADE ROOT RETAINER1,240 N·m+18°OR / 08:03
C03CORE FLANGE A392 N·m+61°MA / 11:47
T07TURBINE SHAFT NUT8,960 N·mLOCKES / 16:22
K09CONTAINMENT CASE744 N·m+30°VR / 18:09

MICRO-BALANCE CELL / LIGHTS OFF

THE LAST
0.7 GRAMS.

After 112,000 parts become one engine, balance returns to something smaller than a paperclip. A technician adds a crescent of tungsten to the spinner backplate, turns the rotor, listens, and removes half.

Rotor within flight acceptance.

Move the tungsten trim. Acceptance band: −1.0 g to +1.0 g.
WERK 9RELEASEDFLIGHT CELL · 04:40 CET