Locomotive chart in astrology

A locomotive chart has its planets spread over about two thirds of the wheel, roughly 240 degrees, while the last third, about 120 degrees, sits completely empty. Marc Edmund Jones saw it as a shape of drive and self-reliance. The planet that follows the gap works like the engine.

How do I know if I have a locomotive chart?

Find the widest empty stretch on your chart wheel. If it covers about one third of the circle, and the planets are spaced fairly evenly across the other two thirds, you have a locomotive. There should be no big second gap. A chart with several gaps is closer to a splay or a seesaw.

Real charts come near these numbers without hitting them exactly. The chart shape calculator measures the largest gap and names the closest of the seven shapes.

Feature	What it looks like	Core meaning
Spread	Planets across about 240 degrees	Wide range of interests
Empty third	About 120 degrees with no planet	The missing area, often sensed as a driving need
Leading planet	First planet clockwise after the gap	Sets the pace
Overall style	Self-driven, energetic	Tends to make things happen alone

What does a locomotive chart mean?

Jones read the empty third as something the person must supply for themselves. A train pulls its own cars, and this chart has the same momentum, powered by a built-in feeling of lack. People with the shape come across as energetic and self-reliant. Sitting idle on a Sunday makes them restless.

The empty third hints at what feels missing. If it covers the houses of partnership, the person may feel they have to build relationships on their own terms. If it covers the private houses, they may have to make their own rest, because it never arrives by itself. Use these ideas to reflect, and keep them out of the forecast business.

Which planet leads the locomotive?

The leading planet is the first one you reach moving clockwise from the gap. Astrologers treat it as the starter of the whole chain, so its sign, house and strength count for more than usual. A leading planet in good shape helps the whole chart move smoothly. A strained one shows where the drive hits friction.

Check it with the planet strength calculator. It rates each planet as Strong, Harmonious, Weak or Afflicted based on dignity, aspects, house and configurations.

Locomotive chart strengths and risks

This shape brings stamina and initiative. Its owner keeps going without much outside support, like the colleague who finishes the report while everyone else is still at lunch. Overwork is the price, along with a refusal to slow down. The empty third can also feel like a zone with no ready instincts, where every lesson takes effort.

Name what the empty section represents. Then put some of your energy there on purpose, instead of waiting for it to show up.

How does it differ from a bowl or bundle?

A bowl chart is more concentrated, with a full half empty. A bundle chart is tighter still, packed into a third. The locomotive sits between a bowl and a splash in how widely it spreads.

How do I read it with the rest of my chart?

The shape gives the style. Your core type shows how your personality is organized around it. For an overview of all seven shapes, see the chart shapes section.

The locomotive describes momentum, so it fits busy people and stubborn, steady ones alike. Set the description against your own life and keep what fits.