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You aren't required to be able to fly the departure procedure gradients with an engine out - it's strictly a "normal" (all engines operating) requirement. At Aspen, you have to take a hard look at both 2nd segment and approach climb requirements.falconpilot said:For the departure (someone correct me if Im wrong) it takes about a 460' per NM which is over a 7% climb grad... Depending on temp and stuff like that, alot of airplanes can't do that...
Lead Sled said:You aren't required to be able to fly the departure procedure gradients with an engine out - it's strictly a "normal" (all engines operating) requirement. At Aspen, you have to take a hard look at both 2nd segment and approach climb requirements.
'Sled
You have an opinion from FAA Legal stating that you have to be able to make the climb gradients listed in a departure procedure (TERPs) with an engine out? Care to provide us with a reference? As a side note, in the Gulfstream GV Aircraft Flight Manuals there is now a disclaimer stating that DP gradients are not "required" to be met on SE ops, part 91 or 135.Rick1128 said:I have yet to get a different opinion form any fed I have dealt with including those from Legal.
We operate in and out of ASE on a VERY regular basis and I'm not advocating doing anything stupid. Personally, it has to be "very VFR" or we're not going - in or out. We also have the escape procedure from Jeppesen Airport Analysis just in case...Rick1128 said:The other issue is why the engine quit in the first place. Bad fuel? Took a bird? Was there only one bird? And so on. That valley is not a place to lose the other engine.
westwind driver said:Doesn't one departure requier like a 950' climb gradient to 12,000? At 200 kias thats somewhere between 2500 fpm and 3000 fpm. Not gonna happen with an engine out in any aircraft except an F-15. I do not know of any aircraft that legally departs ASE during IMC conditions, except Gulfstream IV/V, three-hole Falcons and the Global.
Once the weather goes below 5000' ceiling and 5 miles I think ASE is considered to be legal IMC. Most aircraft cannot depart ASE and make the 3.3% IFR in IMC second segment. Remember 2.4% is IFR in VMC second segment.
Thats why when the weather starts to become IMC at ASE, the tower advises departures will be closed. It's a 15.6% gradient for the ASPE2 and the LINDZ4 is 13.2%
Therefore, you can only legally depart when it is VMC. You may be on an IFR flightplan, but you have to depart in VMC conditions.
As for going down hill, remember a negative slope reduces your BFL, therefore there is no true limiting factor other than runway length.
The 2% uphill is the limit, period. Think about this, on a 6000 foot long runway, that means there is a 120 foot drop from one end to the other. Pretty significant.