Seen, not caught
Open the aircraft collection of somebody who runs a receiver and, until today, you saw a wall of a hundred and eighteen type cards with three airframes under them. Every tile wore the same solid rarity ribbon, the same frame, the same foil. Somewhere in that wall were the three types the person had actually caught in flight; the other hundred and fifteen were types their antenna had heard while they slept. Nothing on the wall told you which was which except a small grey line reading "not caught yet", and the counter on the tab said By type (118) right next to All airframes (3), which reads like a broken counter rather than a collection.
This is not a bug in the data
A receiver hears hundreds of different aircraft a day. A pilot gets two scans a day and three catches per scan. So the collection of anyone who feeds the network will, by construction, be mostly heard-and-not-caught: ninety-five percent and more, forever. The wall had been designed for the opposite proportion, and it showed.
The fix borrows the oldest rule of the genre this site belongs to. A Pokédex tells seen apart from owned. A creature you have glimpsed is a silhouette. One you have caught is a card.
What changed
Heard types are silhouettes. A type your receiver heard but nobody caught is drawn dimmed and colourless, in a dashed frame, with no foil and no glow. The rarity ribbon stays, but as an outline in the rarity colour rather than a solid fill, because the tier is exactly why you would go and chase that type. A mythical silhouette still shines through the grey.
The type wall has two halves. Caught types first, under their own heading. Below them, a section called Heard by your receivers, not caught yet, sorted rarest first and then by how often the antenna sees the type; rare and frequently overhead is the best next target. Twelve silhouettes show at first and the rest wait behind Show all. A silhouette doesn't expand, because there's nothing under it. It opens the type page instead, where the machine is described and everyone who did catch one is listed.
Every counter is two numbers. The tab now reads By type (✋ 3 · 📡 115). The page header says 3 aircraft · 3 types · 📡 115 more heard, not caught. Manufacturer shelves say ✋ 2 types · 3 airframes · 📡 31 heard. The two scales are never added together, since a person with an antenna must not out-collect a person with a camera by doing nothing, but they're now shown side by side wherever one of them used to hide the other.
Silhouettes have faces. A type your antenna heard but nobody caught used to be an empty frame with a plane glyph, because the only thing that ever put a photo on a type card was a catch. The reference photo, the same Commons picture the type's own page shows, now reaches the card directly, credit included, so the silhouette is a recognisable machine in grey rather than a placeholder.
A bar, finally. The receiver block at the top of the page shows how far your hands have got through the list your antenna wrote: 3 of 118 heard models caught by hand · 2.5 %. That's a ratio, not a sum, and it turns the imbalance from something that looked wrong into something to work on.
If you don't run a receiver, your collection page hasn't changed by a single pixel. All of this appears only when there's an antenna behind the account. Feeding is on the feeder page; the network itself is at feed.skydex.online.