Skyview Aircraft symbols

[Runway2406]

Hello, only been up and running for a few days now using a pi and I have a question about Skyview and the aircraft symbols used. I realise that the different colours refer to the height of the aircraft but what decides the actual aircraft symbol generated on the screen? Is it just random? The reason I ask is that I’ve noticed aircraft like Airbus A330 showing as a four engined silhouette as below but the really strange one is the Fokker 100 airliner which shows up as a silhouette which to me looks like a Jet Fighter? [also as below]

[biekerc]

@Runway2406

I realise that the different colours refer to the height of the aircraft but what decides the actual aircraft symbol generated on the screen? Is it just random?

It is definitely not random.

@obj

Aircraft type is not transmitted as part of ADS-B.

When Skyview knows the aircraft type for an aircraft from its static database, it’ll try to pick a suitable icon.

When Skyview doesn’t know the aircraft type, it picks an icon based on the ADS-B “emitter category” which has very vague categories so it may not get it right.

[obj]

Specifically the rules are here:

flightaware/dump1090/blob/master/public_html/markers.js#L207

F100 is currently mapped to hi_perf which is probably wrong (I can’t remember where I got that list from)

[Runway2406]

Thanks for the information. I suspect the F100 hi_perf came from the fact the North American F-100 is a Supersonic fighter [or 1950s era] of which there used to be many flying around the US up until a few years back as a number were converted to drones/aerial targets. These have [for the most part] all been withdrawn now [or shot down] although there may still be some around with people like FSI/Tracor being used for test purposes.
There are still quite a number of Fokker 100 jet airliners flying though.