THE RACING LINE

one corner, three apexes, the time computed

Built as a memo rather than a table: the thing worth hanging it up for reads across the room, with the full reference in smaller type below it.

Three sizes in one archive — from a sheet on the fridge to a poster on the wall.

Formats: A4 · A3 · A2
What you get: Print-ready PDFs, one per size, with every letterform converted to outlines — nothing to install, nothing to shift.
Subject: vehicles · everyone · memo · study

A 90° corner, 25 m inner radius, 12 m wide, straights of 300 and 300 m. Model: 1400 kg, 220 kW, 4.5×1.9 m, grip 12 m/s² lateral and braking, 4.6 m/s² driving, CdA 0.75 m². Lines: the path of the car’s centre; corridor 10.1 m.

IF YOU MUST BE WRONG, BE LATE

The early and late apexes here sit the same 15° either side of the geometric one and carry the same pair of radii — 46 m and 101 m — merely swapped over.

They do not cost the same. The tight arc on the exit costs 1.31 s, the tight arc on the entry costs 0.17 s: a factor of 7.5 for an identical mistake.

That is why instructors say "late apex" although the optimum sits at 42°, almost in the middle. A late apex is not faster — it is cheaper when you miss.

On the sheet

A 90° corner, 25 m inner radius, 12 m wide, straights of 300 and 300 m. Model: 1400 kg, 220 kW, 4.5×1.9 m, grip 12 m/s² lateral and braking, 4.6 m/s² driving, CdA 0.75 m². Lines: the path of the car’s centre; corridor 10.1 m.
Colour carries meaning, but meaning never rests on colour alone — the sheet reads in black and white.
Nothing about how it was made: the sheet carries only what the reader needs.

Printing

Three sizes in the archive: A4 — 210×297 mm, A3 — 297×420 mm, A2 — 420×594 mm.
All text is converted to outlines. No fonts to install, and nothing shifts on another machine.
White background and sparing fills — it prints on a home printer without draining the cartridge.
Margins of at least 10 mm: a home printer cannot print to the edge.
No stroke thinner than 0.3 mm, so nothing disappears in print.

Why the numbers can be trusted. Every countable number here is computed from data rather than typed in, and the sheet must pass 8 independent checks before it is allowed to build — how many items there are, the order they come in, and the claim in the highlighted box itself. If one fails, there is no file.

THE RACING LINE

IF YOU MUST BE WRONG, BE LATE

On the sheet

Printing

More like this

BICYCLE CLASSES

CAR CLASSES

MOTORCYCLE CLASSES