The open teardown — Martlet M160T

01Assembled
This is everything.
One M160T at rest in the test cell. 160 hp, 73.1 kg, and no secrets. Scroll: we'll take it apart, and we'll leave the price tags on.

02Disassembly
The pull.
Part groups fan out in build order. The whole catalog is public. Every part number, every price, every gram. Affordable because it is honest, not because it is cheap.

03Core
The core.
Crank, rods, pistons, forged at automotive scale and priced like it. Line one of the catalog is the crankshaft, not a mystery.
- MA-000-1101 · Crankshaft
- $1,840
- MA-000-1103 · Con rod, pair
- $386
- MA-160-1106 · Piston, turbo
- $248

04Thermal
Heads and cooling.
Liquid-cooled heads carry the heat; air-cooled barrels carry the simplicity. The blue trace is the coolant path: one mechanical pump, one electric backup, no drama on a hot ramp.

05FADEC
The brain.
Dual-channel FADEC on automotive silicon. Either channel flies the engine alone; both watch each other. No mixture knob, no carb heat, no folklore.

06Boost
Boost.
One fixed-geometry turbo, one electric wastegate, 1.42 bar absolute. 160 hp at sea level, and the same 160 at 15,000 ft.

07Reassembly
Back together.
Everything you just watched is in the manual, torque values included. The counter is the complete firewall-forward price. No asterisk.
Complete firewall-forward, ex-works Filton

08Test stand
It runs. We can prove it.
Every engine runs on the stand before it ships. The design ran 3,112 hours before the first one did.
- Term
- 3 yr / 1,000 h — later of
- Coverage
- Full FWF incl. FADEC
- Transfer
- Follows the engine
The lineup
One core, three answers. Same crankcase, same FADEC, same 2.43:1 drive.
M120Baseline flat-four
M120
The working engine. 120 hp, honest numbers, published prices.
From $24,800 firewall-forward
M160TTurbocharged flagship
M160T
The flagship. 160 hp held flat to 15,000 ft.
From $32,400 firewall-forward
M120HHybrid-ready variant
M120H
Hybrid-ready. 25 kW where the alternator used to be.
From $31,900 firewall-forward
Published. Priced. Provable.
The manufacturing thesis, in three claims you can check.

A light-aircraft engine used to cost four times what its parts justified. We build at automotive scale, with automotive-grade sensors and FADEC silicon, and we publish the entire parts catalog with prices.
That last part matters most. When the price of a crankshaft is public, the price of the engine has to be honest. When the test-cell ledger is public, the reliability claim has to be real. Transparency is not marketing here. It is the cost model.
- Fuel
- 91E10 mogas · UL91 · 100LL
- Direct operating cost
- ≈ half the incumbent
- Parts catalog
- 49 lines · prices public
