WhichTractor

Corrections

Every figure on WhichTractor comes from a document we can name, and the page says which. If a figure is wrong, we want to fix it.

How do I send a correction?

Email corrections@whichtractor.com and tell us:

  1. the page, and which figure;
  2. what the page says, and what it should say;
  3. your source — the document, its title and page, or a link to it.
Write the email

How do I send a photograph?

Email it to corrections@whichtractor.com with the page it belongs to. We can only use a photograph you took yourself.

By sending it you license it under CC BY-SA 4.0: WhichTractor — and anyone else — may use it, as long as they credit you by the name you give and share it on the same terms. You keep the copyright. The email already contains this sentence for you to confirm:

“I took this photograph myself. I license it under Creative Commons Attribution-ShareAlike 4.0 (CC BY-SA 4.0), so WhichTractor and others may use it with credit to the name below.”

A person checks that the photograph shows the machine on the page before it is published.

Send a photograph

What if a photograph is wrong?

Use Wrong photo? beside the photo’s credit, or email uswith the page and what the photograph really shows. Where we show a photograph of a related model, the page says so above the image.

Why does a correction need a source?

Because every figure we publish has one. We do not change a number on someone’s word alone, however likely it sounds. A test report, an operator’s manual, a brochure or a government register is enough. If you own the machine and measured it yourself, say how; we will record it as an owner’s report, never as a manufacturer’s or laboratory figure.

What happens after I send it?

  1. We read your source against the source the page already cites.
  2. If our copy is wrong — a misread number, a wrong unit, the wrong machine — we fix it and the page shows the corrected figure at the next publish.
  3. If the two sources disagree, we do not quietly pick one. Both figures are shown, each with its source, and the page says they disagree.
  4. If they measure different things — a manufacturer’s claimed engine power and a laboratory’s power measured at the PTO, for example — that is not an error. Both are kept, labelled.
  5. We reply to say what we did.

What can’t we take?

Scans of manuals or brochures to publish, photographs you do not own, or figures copied from another specification website. We record facts from original documents only. How sources are used:sources and licences.