Peter wrote:
So what is the lesson there? Not fly under a low cloudbase; fly above the cloud, or inside it.
It shows why IMC generally begins 1000 feet below the cloud. That’s not practical at low altitudes, of course, which is why it is legal to fly VFR up to the cloudbase at 3000 feet (1000 ft AGL) or below in class G. (Or special VFR in control zones.)
1000ft below is a bit generous but I agree with your drift 
But as you can see from the replay above, the target would have been totally stationary in the field of view.
So what is the lesson there? Not fly under a low cloudbase; fly above the cloud, or inside it.
Or stay even further away from the circuits of airfields in the vicinity of the route… the other aircraft flew a “bomber circuit” well above circuit height and outside the ATZ; but airfields are “honeypots” where it is more likely to find other aircraft than somewhere else en-route. Popular waypoints might also be best avoided.
Just highlighting for those who didn’t notice, but in foreflight you can see “traffic breadcrumbs” from the ADS-B traffic by clicking on the target.
Which I think can be very useful for situational awareness and having a clue what the traffic is doing when a target get close. Not always useful, but around London I something found it useful to see the traffic is doing manoeuvring, its path so far is straight or just seem turning into join, etc.
Don’t know if SkyDemon does it or not (I am not a user)
This must be GSM/4G so needs mobile data. But where does FF get the data? Must be some tracking site in Europe.
I think by far the best strategy is to fly well above 2000ft; say 3300ft or 3700ft or so. Almost never see anybody there. This was a very unusual kind of flight for me.
Bembridge is normally quiet as a graveyard
Thinking about this a bit more: in a low-wing airplane like a TB20, wouldn’t it make more sense to take evasive action by descending (assuming enough terrain clearance)? That way you can keep the other airplane visual. I understand that @Peter never acquired the other one visually, this is more a general question. Thoughts?
Peter wrote:
This must be GSM/4G so needs mobile data.
The way I read the blob in roznet’s link is that Foreflight mainatins its own records on your tablet of up to 30min for any traffic received via ADS-B or Flarm. If you and the other traffic are both doing circuit I can see how a full 30 min of history can be built. If it is just 2 aircraft flying straing and getting close-ish at some point I don’t think you’ll get much more than 10 mins with ADS-B and 5 with Flarm
say 3300ft or 3700ft or so
Prime altitude band for gliders but Winter is coming and it will be another 6/7 month until we get to play again (though Friday looks good)
A low wing will block the view for someone below, which is very unlikely to be traffic that will get you One can see similar-level traffic perfectly well.
The most dangerous zones are where others decide to fly the same profile.
This is true for flying at the vicinity of airfields or right under some vertical limit like a cloud base or equally an airspace limit. Below the cloud base you’ll also find lots of gliders, which is particularly the case in Germany.
Isn’t flying A to B at A3300 or A3700 OCAS against air rules in Europe?
