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Originally Posted by Blip
(Post 3163218)
Yeah we won't have to worry about climate regulation. We should worry more about adjusting newly built models to extreme weather. Like landing with XXX/20G70, hepa filters strong enough for forest fire smoke, amphibious options, etc
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Regardless of any political opinion, I think the real issue at hand is efficiency. And nothing beat a Turboprop on short or thin routes. Fuel prices might be low now, but I would bet that will not remain so in the medium or longer term, especially when demand picks back up.
I see the 50 seater jet as a fad that lasted too long and the Legacies allowed them to stick around more for PR reason. The real question is can the Legacy continue to subsidize their operation when the industry contracts as it so often does. In see Embraer’s announcement that a shift in philosophy is taking place. |
So how do maintenance costs compare from a prop to a jet? I know propellers themselves are pretty maintenance intensive and if you screw it up people can get killed. Not to mention an engine out scenario in a prop aircraft can be a significant emotional event depending on when it occurs.
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Originally Posted by aeroengineer
(Post 3163558)
So how do maintenance costs compare from a prop to a jet? I know propellers themselves are pretty maintenance intensive and if you screw it up people can get killed. Not to mention an engine out scenario in a prop aircraft can be a significant emotional event depending on when it occurs.
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I personally would go back to flying the dash tomorrow if my airline brought it back.
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Originally Posted by Ziggy
(Post 3163584)
TP engines are smaller and less complex than modern TF engines. The PW150 that powers the Q400 I believe is only a two spool single stage centrifugal engine. Where as the CF34-8’s found on the CRJ700/900 are 10 stage engines. Although I see modern technology could give TP aircraft greater strides in operating and MX functions. FADEC, CMC, FBW and HGS systems to name a few.
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I can't believe all this talk and no one has discussed whether or not the A/C system on props is cool enough to keep it comfortable at the gate and taxiing when it's in the 90's outside.
In the ERJ the packs (off APU bleed at least) do a pretty good job. I care A LOT more about flight deck temp than whether or not its a TP or TF. |
Originally Posted by Bahamasflyer
(Post 3163642)
I can't believe all this talk and no one has discussed whether or not the A/C system on props is cool enough to keep it comfortable at the gate and taxiing when it's in the 90's outside.
In the ERJ the packs (off APU bleed at least) do a pretty good job. I care A LOT more about flight deck temp than whether or not its a TP or TF. Outstations for Horizon, if it sits during the day, can be an issue. Fortunately most sits are overnight. |
Originally Posted by aeroengineer
(Post 3163558)
So how do maintenance costs compare from a prop to a jet? I know propellers themselves are pretty maintenance intensive and if you screw it up people can get killed. Not to mention an engine out scenario in a prop aircraft can be a significant emotional event depending on when it occurs.
Many issues to consider here. In any case, the current 50 seat jets won't last forever. The manufactures insist they only exist because of U.S. airline scope restrictions and don't exist anywhere else on the planet (that seems absurd, but I am not an airline industry economist) but they certainly exist in abundance here and will need to be replaced sometime in the future.
Originally Posted by Bahamasflyer
(Post 3163642)
I can't believe all this talk and no one has discussed whether or not the A/C system on props is cool enough to keep it comfortable at the gate and taxiing when it's in the 90's outside.
In the ERJ the packs (off APU bleed at least) do a pretty good job. I care A LOT more about flight deck temp than whether or not its a TP or TF. |
Originally Posted by tallpilot
(Post 3163746)
Great point. However this issue has been easily dealt with on business jets with vapor cycle air conditioning systems. Modern variable speed compressors are extremely efficient and not particularly heavy. So this is not an insurmountable engineering problem. The Swiss must think it’s in the 50s everywhere in the world with such a crappy air conditioning system😡😡 |
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