What they know is that the CRJ’s flight data recorder had it at 325 feet - but was the FDR input stream correct?
Bullshit. They don’t “make up” facts. Sometimes it takes a while to find them, but many accidents where they didn’t find them all have had reports which said exactly that.
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The FAA and Army approved Letter of Agreement to place a helicopter corridor at 200’ and below, through short finals for Runways 1 and 33, is completely insane and is the primary culprit in this tragedy. The CRJ was 175’ high on a 3-degree glidepath and would’ve been at 150’ on 1/2 a mile final.
No place on the river, south bank, “behind” or “under” a jet would’ve been safe, no how, no way.
The CRJ was 175’ high …
Where do you get your numbers? It seems that everywhere I’ve been looking, 325’ +/-25’ is the accepted figure.
For a standard 3-degree glidepath, beginning with 1,500’ at five miles out, it is approximately 300’ per mile. This would put the CRJ at 300’ at the South bank of the Potomac which is a one mile final and at 150’ mid river, which was the point of impact. That jet was high and especially for a short runway.
My point is that nowhere over the river would it be safe for a Black Hawk to pass “200’ or below.”
Yes, the CRJ was approximately at 325’ at point of impact. But IF the CRJ would’ve been on a stable 3-degree glide path angle in order to make a nice landing on a short runway, he WOULD’VE been around 150’ on a 1/2-mile final. 325-150=175’ high.
So how could any traffic cross under a jet on final anywhere along the river?
Very strange situation I hope they can release more facts soon, the practices may need to be reviewed if this was the cause.
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