Yes, I understand. I'm just explaining the situation in greater detail in case there is a misunderstanding :)

-----Original Message-----
From: Jo
Sent: Apr 11, 2018 10:27 AM
To: Milo van der Linden
Cc: "Jack Armstrong" , "Jack Armstrong" , Oleksiy Muzalyev , Talk Openstreetmap
Subject: Re: [OSM-talk] today's tragic helicopter accident in Bavaria

derbies -> debris

Oleksiy's attention was drawn to that airport because of the tragic fatality. He noticed the tower was not mapped, so he mapped it.



2018-04-11 8:17 GMT+02:00 Milo van der Linden <>:
Dear Armstrong, please be aware that Oleksiy is no native english speaker. In his culture and language that is probably not what he is saying.

Kind regards,

Milo van der Linden

On April 11, 2018 3:21:17 AM GMT+02:00, "Jack Armstrong" <> wrote:
Are you saying you think an aviation accident could have been avoided if OSM data was better? I've been an air traffic controller for 38 years. Aviation hazards, such as towers at airports, are well charted on navigational charts and airport diagrams which pilots are required to use. A pilot would never use OSM as a means of avoiding ground hazards at an airport. Besides, this particular accident happened at 10:00 A.M. local time, meaning it was daylight. The vast majority of aviation accidents are the result of pilot error. If a helicopter pilot allows his rotor blades to collide with a clearly visible object, that is negligence on the captain's part.

-----Original Message-----
From: Oleksiy Muzalyev <>
Sent: Apr 10, 2018 3:44 PM
To: Talk Openstreetmap <>
Subject: [OSM-talk] today's tragic helicopter accident in Bavaria

Good evening,

There was an helicopter accident at the airport Flugplatz
HaƟfurt-Schweinfurt. One man from the ground staff was killed by derbies
when helicopter's propeller blades touched the control tower.

On the news video [1] and on the aerial image of the airport [2] it is
clearly visible that the tower building is not in the same row with
other buildings, it is a bit outstanding.

This tower was not mapped neither on the Google maps, nor on the OSM. I
mapped it by now on the OSM: with the tag:
tower:type=aircraft_control, which has got a nice map icon.

In general, towers, not only aircraft_control, but also communication,
and others, are well visible even from far away, and could serve as good
landmarks. That is why it makes sense to map towers.



With best regards,


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