[MrPeaBody]

Oversight or Lack There of!!

Just a few words about the image below; there in lies some porky pies.

3.6.1 Building height - In accordance with aviation safety requirements of America and New Zealand..... This aint from the MOS 139; try CFR77.19 if you want a 1 in 7 transitional surface.

From CFR77.19:

Transitional surface. These surfaces extend outward and upward at right angles to the runway centerline and the runway centerline extended at a slope of 7 to 1 from the sides of the primary surface and from the sides of the approach surfaces. Transitional surfaces for those portions of the precision approach surface which project through and beyond the limits of the conical surface, extend a distance of 5,000 feet measured horizontally from the edge of the approach surface and at right angles to the runway centerline.

The width of the primary surface (if Essendon airport was actually in the USA) would be 1,000 ft (304.8m). So it would fail there as well.

From the MOS:

The transitional surface comprises inclined planes that originate at the lower edge from the side of the runway strip (the overall strip), and the side of the approach surface that is below the inner horizontal surface, and finishes where the upper edge is located in the plane of the inner horizontal surface.

Runway 26 strip width from runway centre is shown as 90m; should be 150m. Runway 35 is shown as 75m; should be 150m also. EAPL have used the runway gable markers as the edge of the strip; it should be the overall strip.

Again from the MOS:

The transitional surface slopes upwards and outward at a specified rate and is to be measured in a vertical plane at right angles to the centreline of the runway.

This a line projecting from the runway centreline at 14.3 degrees until it intercepts the inner horizontal surface at 45m. If you work it out it's around 197m from runway centre. Then draw a line down to the edge of the overall strip. That's what the transitional surface should look like. Look at the drawing below; nothing like it!

3.6.2 Navigational aids - This runway comprises an Instrument Landing System (ILS) which requires clearance distance in accordance with CASA's Manual of Standards Part 139. The requirements of this manual have been totally ignored and  would severely impact on our development.