T-56s have been around forever and were a well-proven design when the E-2 was built. I suspect it’s rather typical Navy support and maintenance. The AF is the same way to a lesser degree. Guys that joined the Reserves from fighters were astounded by the unreliability and poor parts support for airli...Jump to post
Pedantic SW. ON/ Planes don’t get crew rest, crews do. Except at some stations it’s ONLY the plane resting. /Pedantic Sw. OFF
You can build a single-engine Part 23; but no such plane under Part 25. A Part 23 twin-engine plane, under 6,000#, essentially must only be controllable, no specified engine-out performance. A normal category Part 23 plane must have structure capable of 3.8G while a Part 25 G design standard is 2.5G...Jump to post
They’ve lost some Caravans, so it might be FDX is looking for greater safety margins. A 2,500 hp single would be pretty unique. The issue is that a Part 23 single must have a stall speed less than 61 KIAS or demonstrate an equivalent level safety, that might be hard to show in a plane this large. A...Jump to post
They’ve lost some Caravans, so it might be FDX is looking for greater safety margins. A 2,500 hp single would be pretty unique. The issue is that a Part 23 single must have a stall speed less than 61 KIAS or demonstrate an equivalent level safety, that might be hard to show in a plane this large. A ...Jump to post
You’d have to find a pretty big, i.e. expensive turboprop to make this a single. Plus two engine redundancy.
I wonder if this isn’t tightly drawn to FDX requirements and not flexible enough for many operators—no pressurization, fixed gear.
A seaplane version would be dependent on enough buyers for Wipaire to design a set and certify them. Outside of one DC-3, it might be the largest floatplane.
A DA900 can operate on grass? I find that hard to believe given, it’s ACN at a reasonable weight is 17, the main tire pressure is 200psi and it has an operating limitation for hard surfaces. The Ciatation II was almost certainly operating in violation of the AFM. I had 2,500 hours on them and the sh...Jump to post
It’s bigger than a Twin Otter by a fair bit. Fixed gear and unpressurized cabin in fine for under 250nm sectors with cargo; makes maintenance cheaper. As a pax hauler pressurization is probably needed, though Cape Air’s routes work unpressurized. It’s hard to make two versions, though. Because the s...Jump to post
It's amazing that the original EA has been gone for about 27 years - those that weren't around probably can't appreciate what a big airline it used to be! Very true, when I was hired, EA was tied with AA as the largest passenger carrier. About the same crew size and 284 planes. We carried more O&am...Jump to post
And, remember, the standard certification test is loss of a window. The plane doesn’t immediately become ambient outside pressure. I think the certification plan is minimal time to no time is the cabin above 25,000 PA. I think the “leak” rate with a window loss is on the order of 2,500 to 3,500 fpm GFJump to post
SheikDjbouti, It’ll take as long as it takes to get it ready for flight, 50 days or 50 months! One doesn’t rush into it. I’ve flown planes “on the ground “ for 10,000 hours. There’s no rush. That said, it will be either a AI or AF operating crew trained in 3-engine ferry flights, not “volunteers” or...Jump to post
Also, there wasn’t ETOPS, so any thought of overwater ops was dead on arrival.Jump to post
They do it because it is very expensive to keep very specialized talent and tooling for a development program that runs only once. For example, FBW systems are outsourced to manufacturers that specialize across the industry for those components—Moog and Parker-Hannifin for two. BAE developed the FBW...Jump to post
I checked the TCDS, I stand corrected, no AvGas on the Global or either Challengers. Yes, on the C-5
Zeke, I well aware of what FADEC means, but the fuel in the fuel lines, pumps and controller would be JET A as the tanks would contain a mix of the existing turbine and newly added AvGas. Start would on JET A until the supply system started flowing the mix. If there were enough time, the AvGas havin...Jump to post
One of the Boeing Company’s Challengers had a nose strike that penetrated to foreword bulkhead and was shredded around the CRT displays. Somewhere I have a pic of the feathers and guts hanging out of the panel. I suspect it happens so fast, it’s over before you are aware of it.
I think it would start just fine. Remember, the AvGas wouldn’t flow to the FADEC for some time.
Most AFMs have an alternative fuel specification—types of fuel authorized, time limits, flight restrictions, etc. Most engines will accept AvGas with limits on altitudes, fuel temp and OAT limits and total time operated. Not a big issue.
I agree on the train, clearly the quickest, easiest. I’ve beaten air or rail travel on east coast routes many times. Home (western Mass) to DC, DOV, YUL, PHL, ILG. Combine the travel to BDL, security, waiting time (1 hour prior), collecting bags, getting rental car, final drive, it’s always a wash....Jump to post
I agree on the train, clearly the quickest, easiest. I’ve beaten air or rail travel on east coast routes many times. Home (western Mass) to DC, DOV, YUL, PHL, ILG. Combine the travel to BDL, security, waiting time (1 hour prior), collecting bags, getting rental car, final drive, it’s always a wash. ...Jump to post
For some odd reason, military color tests are tough! I had twootherwise fine people who held FAA Class I medicals flunk the USAF color test without recourse. I heard the same outcome on the RAAF test.
This flight was insanely short, 30-40 min I believe, with half or less of that used in actual cruise flight. But by driving, the same trip is around 5 hours. Doesn't sound any different than LGA-DCA... Make the correct comparison, door-to-door Central Park to 1600 Penn and I can pretty much guarant...Jump to post
Colorblind is probably disqualifying unless you can appeal for a Statement of Demonstrated Ability, but you would still have to demonstrate the ability to differentiate colors in some fashion. Color is used in many ways—light signals, airport lighting, FMS and avionics coding.
It’s NOT cooling, it’s ROTOR BOW. The rotor is bowed due to uneven heating in the cowl which is solved by dry motoring to even the temps. It’s an issue for all flights because now occurs after shutdown—12 hours or 20 minutes. But the start procedure does increase start times and may cause a taxi del...Jump to post
Are you talking about rotor bow? That’s not cooling strictly; it’s because of the heat rising into the top of the cowl and causing differential heat on the core and the rotor to “bow”. It is solved by dry motoring the engine during start to equalize temps and unbow the rotor shaft.
EA flew the A300 fleet 24/7 driving the Airbus tech reps crazy. We had a freight deal with Consolidated Freightways that kept them busy at night, then flew the day schedule. “Moonlight Express” was the pax side of the deal. CF basically paid for the plane and pax were almost pure profit. Planes were...Jump to post
FA9295 wrote:DL: RDU, LAS, PDX, AUS
Since I hate being in the car more than just about anything on the planet I would say no distance is too short to fly. Anecdotally I've flown ATL-JAX-ATL 4 times. The drive is between 5-6 hours. I've done the flight in as little as 39 minutes. Just using your post as an example, Sir, but no one is ...Jump to post
JT3D powered 8’s were still flying in ‘91? Or were those the last CFM-powered planes
It’s absurd there are these laws in the first place. Who will protect us from the protectionists.
Boeing didn’t have much incentive to push the 717; so many are speculating, with no AI money involved, Airbus might do the same. Pure speculation. Remember the B717 and the earlier versions had a large installed base where the C-Series doesn’t yet.
From what I hear, the C-Series will lift a full cabin off 5000’ and go about 2800nm. Not many need better performance, especially if the operator trades a significant portion of the fuel for less range. I think 4300’ operations are quite possible over, say 600nm sectors. Assuming reasonable temps an...Jump to post
It’s probably the way the operator strapped the EGPWS alerts—selectable but not crew selectable.