Quote:
Originally Posted by towerguy3
I noticed a red NAV light at the top of the Shangri-La crane which at this point must be about 650 feet.
I assume Shangri-La is tall enough to warrant those red NAV lights at the top for planes?
What is the height above which red lights are required at the top of a building for NAV? Is this a legal requirement from Transport Canada or done by choice by the developer?
Is Shangri-La high enough that there is a risk of a hit by a plane?
Is the height above which NAV lights are required determined by the city and the landscape? For example in Calgary and Edmonton, I noticed all the buildings in their downtowns have red NAV lights atop them because Edmonton and Calgary are flat, but in Toronto and Montreal some building had them and some didn't. In Yellowknife some had!
In Montreal, would the rotating spotlight above Place Villa Marie satisfy Transport Canada?
lots of questions but would appreciate replies... thanks...
|
I'll see if I can find out tonight or tomorrow for you. However, in the short term I know that aircraft are supposed to fly 2000 feet above any object within 2000 foot radius of the aircraft, so that even in a worst-case scenario an aircraft could theoretically glide safely over top of this obstacle.
As such, I would theorize that the red lights are just a marker to indicate where these large obtrusions are (they would be on aeronautical charts) so that pilots flying at night could reasonably guess how far away and as such how high they should be flying from this object... in this case the Shangri-la.