Ancient Holdings

The engine that starts a fleet.

A fuel-burning linear generator — the Stoic engine — making clean electricity on board. That current drives electric wheel motors and an artificial electrogravitic well to build GRIP: a 1,000 km/h vehicle meant to be built in the real world, not just imagined on screen. It is rung one of a ladder from the ground to orbit and beyond.

Explore the Stoic engine → See the GRIP vehicle
250,000km
On one tank of fuel — about ½ tonne
1,000km/h
GRIP vehicle flat-terrain target speed
671hp
Continuous electric power — yet out-accelerates cars with far more
49.9%
Stoic engine fuel-to-electricity (target)

The programme

One engine. One vehicle. One ladder to the stars.

Every part of the vision rests on solving the power problem on board, cleanly and at scale. Start there, and the rest becomes engineering rather than fantasy.

The Stoic Engine

An opposed free-piston linear generator. No crankshaft, no gearbox — fuel in, high-efficiency DC electricity out, on any fuel. The TM-180 and TM-250 modules.

Specs & architecture →

The GRIP Vehicle

Wheels taller than the body, drives inverted, 1,000 km/h on flat ground. Electric wheel motors for launch; a gravity well for propulsion, downforce and braking at speed.

Vehicle specification →

The Fleet & Stoa

GRIP is the prototype. The same power architecture scales to fighters, transports, star-destroyer-class ships and off-world habitats — settled by the Stoa blockchain.

The long vision →

How it fits together

From a tank of fuel to a wall of force.

The engine never touches the wheels. It is a generator. Everything downstream runs on the same 800 V DC bus, which is exactly why the architecture scales so cleanly.

Fuel diesel · H₂ · NH₃ Stoic Engine free-piston generator up to 49.9% → DC 800 V DC bus + buffer battery rectify · smooth invert · route Wheel motors ×4 launch · torque vectoring regen braking Electrogravitic well thrust · downforce braking (reversed) regen →
Series-hybrid architecture. Generator-side and motor-side are fully decoupled by the DC bus — diesel-electric practice since the 1930s. FIG. 00 · POWER PATH

Why this is different

Science fiction, solved first.

Most screen technology is imagined, then hand-waved — warp cores and inertial dampers that no one can actually explain. This programme inverts the order: solve the engineering, then tell the story.

Because the hard problems — on-board power, propulsion, suspension at supersonic wheel tips — are being worked as real design, the fictional fleet inherits a spine of real numbers. The movie franchise is downstream of a buildable prototype, not the other way around.

Design discipline

Every power claim must satisfy P = F × v. Any subsystem claiming force at a speed must show the energy to back it. No free lunches enter the canon.

Isometric engineering drawing of the TM-250 Stoic engine module
TM-250 — isometric general arrangementDRG · ISO

The ladder

Prototype on sand. Destination in orbit.

GRIP proves the power and propulsion stack at ground scale. The same stack — bigger battery, bigger well, eventually fusion instead of combustion — climbs to fighters, transports, capital ships, and homes beyond Earth.

Walk the roadmap → Start with the engine