Do you know the PW150C specifications as compared to the A? Pratt's site says nothing. More power or more efficiency, or both? Some different materials in the core (nickel alloys) and an additional stage on the power turbine (up from two to three). There's also talk about an improved compressor (th...Jump to post
estorilm wrote:AWACSooner wrote:A330MRTT
Is that considered a transport?
What nobody is mentioning is that a drop in air pressure also results in a restricted take off weight as engine performance is affected. When you take into account that 1013 hPA is viewed as average air pressure at sea level then 945 hPa is extremely low. In usual performance calculations each poin...Jump to post
CheckNorris wrote:Did the Israelis got US approval this time? Did they backdate the the jets to their original configuration?
The photo in the AvHerald link shows the forward nose wheel doors open; in the normal gear extension sequence, they close automatically once the nose wheel is down and locked. They do, however, remain open after a gravity release - and can also be opened on the ground using the same method (pulling ...Jump to post
mig21umd wrote:What is so different this time?
mig21umd wrote:Imagine the Israelis offer the Baraks again
When looking at the linked video one feature catched my eyes: the IL-114 has huge flaps spanning over a very large part of the wings. Caught my eye too; not just the span, but also the total area and extension angle. Almost looks like they designed the flaps and then added the rest of the wing as a...Jump to post
If a route consistently goes to 50 people then you need to get the 150 seat jet off of it unless the return trip is consistently worth a 150 seater. To do so at the last moment will cost you more than sending the 150 seater. Nobody said anything about last minute changes. On the contrary, as noted ...Jump to post
Slightly off topic but back in February I flew on a reputed airline A330 from Europe to Chicago. Temperature was just above freezing at take off and we did not de-ice. However on climb out a sheet of ice of around 2sqm (20sqf) developed on the trailing edge above the flaps and started to break off ...Jump to post
ERAU1 wrote:TC957 wrote:Haven't these old noisy Spey-engined aircraft been banned from the EU ?
I believe so. Even with t he hush kits
crownvic wrote:and now for something completely different and violating my own rule of "do not stray from the topic posts"..A ground contrail...
What's more, there's quite a bit photo and video proof online... here's some: https://www.youtube.com/watch?v=JaKBZLEBgK4 https://www.metabunk.org/attachments/e23f7d961e604d0d11e78128c24aadb4-jpg.15819/ https://live.staticflickr.com/2848/11608893625_d97dc53a50_c.jpg First Air ATR72 by Jason Pineau ,...Jump to post
So run slower in winter, with less flights during the day. Run flat out in summer, more flights during day. During the winter, there's more overall slack in the network (not just ours, but also of our codeshare partners), so there's not need to fly at 340-350 knots to squeeze in every last flight p...Jump to post
So better to park an aircraft during a quiet time of year than keep all flying and reduce the number of sectors per day (and run those you keep a bit more fuel efficiently)? What makes you think the aircraft will be parked? Our machines do not sleep during the winter; if anything, they take up lowe...Jump to post
Do you not vary it through the day? At peak time, its obvious you wanna get as many flights as possible. So between ~6am and ~10am, if that extra speed enables another sector to squeeze in at "peak time" - you gun it. Same for ~5pm to ~9pm. But outside of that, are load factors not typica...Jump to post
Would probably need to be in the hundreds to justify it. If hundreds are needed to justify it, please find where this is done... 'cause I'm moving there ASAP, since somebody is obviously giving fuel away for free! I've done tankering flights with a profit as low as USD 5. Was below Maximum Landing ...Jump to post
If yes maybe airlines should have calculations made if flying more fuel is actually the answer to saving money if it’s minimal cost difference at another airport. One other detail: airlines don't fly on the "YOLO LOL" model... the ops staff don't wake up in the morning and then randomly t...Jump to post
I hope they are also calculating the stress to the airplane of landing heavy. Not overweight, of course, but I'd love to know how they calculate "wear and tear" per flight. If it's within manufacturer limits, it's a non issue. And after all, what's the difference between landing with a pa...Jump to post
Ah ok thank you, I guess I read the article too fast, but rereading it doesn’t explain that the savings are after all the costs of carrying the extra fuel, especially to explain to non aviation crowd. Likely because the author doesn't understand it him/herself, and merely jumped on the very fashion...Jump to post
I have not heard of this term before for commercial airlines, but of course knew it has been a common practice for a while now to save money. As an aside, direct savings are not the only point of tankering. In short haul and regional ops, for example, not needing to refuel at the destination can sh...Jump to post
SRQLOT wrote:Based on distance and time wouldn’t it be more then $51?
ATRs and Q400s are only CAT II. If visibility gets too bad, they can't land. The Q400 is capable of CAT III, although don’t know about SpiceJet’s. https://www.bombardier.com/en/media/newsList/details.1450-bombardier-q400-crj700-fleet-at-horizon-air-certified-for-cat-iii-weather-limits.bombardiercom...Jump to post
Can be both fully loaded which lead to 1563kg total (i.e 20kg max per pax on a 78 Pax version Q400 fully loaded) or is there any limitation? If payload and fuel allow (that is, if there's room until MTOM/MRM - Maximum Ramp Mass) - and the floor loading is within limits - here's no problem. I rememb...Jump to post
A380MSN004 wrote:The maximum bagage capacity in the actual Q400 (78 pax) is 1150kg overall ?
Another link in Slovenian: https://siol.net/posel-danes/novice/kon ... caj-508437Jump to post
I always wondered why the 2L door is rarely used what is the reason ? Two main reasons: the door frame is pretty small (since 2L is essentially a service door) and it's VERY easy to bang one's head passing through... and the optional aft air stair takes up measurable space in the galley (which is a...Jump to post
such as 4000-5000 hours per year To expand on this point further: in high-intensity regional ops, a significant amount of time is "lost" during ground stops since there are quite a few of them during the average day. Hence, the highest flight time can be achieved by flying long flights wi...Jump to post
4000-5000 hours per year For that to be even physically possible, the year would have to be 600+ days long (365 days times 24 hours is 8760 hours). OU, for example, has one of the highest Q400 utilization rates worldwide - and their examples clock around 2500 hours a year. At peak times, this could...Jump to post
Do Q400 operators are struggling to recruit Captains or First officer at the moment ? As much as anybody else. There's a general pilot shortage out there, so finding crews (especially experienced) is not easy no matter what you're flying. I'm asking this because I see non stop online promotion for ...Jump to post
Interesting. What are the differences in terms of equipement for the "modern" version between the Base and Max ? Equipment doesn't influence the Maximum Takeoff Mass; only the Empty Mass. MTOM is the same regardless of what equipment the customer chooses to install (i.e. a Max with a basi...Jump to post
Mind you, the "classic Q400" comes in four maximum mass variants: Basic, Intermediate, High and Enhanced High. The MTOM difference between the lightest and heaviest is 1,600 kg (28,000 vs 29,600); so there may even be borderline cases where the Basic can use a runway at MTOM, while the En...Jump to post
Does an airport with the following PCN : 14 / F / C / W / T can stand frequent Q400 operations at MTOW ? The manuals for the variant we operate say that it can't handle the Q400 at MTOM at all . For flexible pavement (F) with a low strength category (C), the book lists an ACN of 18.3. There is a pr...Jump to post
It needs better brakes and wings for landing distance especially on contaminated runways... it’s pretty shoddy right now... especially with a 5-7 second heat up time for the carbon brakes which can eat a lot of runway in the winter. Even on compacted snow, the Q400 needs just 1300 meters of runway ...Jump to post
Some more info from DHC v2.0: https://www.flightglobal.com/news/articles/analysis-de-havilland-eyes-dash-8-resurgence-460454/ Such updates likely include new cockpit technologies and efficiency improvements, though De Havilland is also considering new variants including a 50-seater, the Toronto comp...Jump to post
Is it possible with out spending huge amounts of money that the Q400 could modified to shed some weight? Unlikely; the issue is with the entire fuselage and wing. Like the Fokker 50, the Q400 is built like a battleship (the interior is another story, but don't let that fool you); trimming it down w...Jump to post
I found it weird because as far as I know, Flybe is flying on high rotations their aircrafts and so the Q400 generate more revenued than doing the same with ATR72s. The Q400 works best in a comparatively narrow band of flight times... 1:30-1:45 seems to be the magic number in Europe. On shorter fli...Jump to post
"The Q400’s fuel consumption is nearly 30% more than that of the ATR72 under similar 300NM environmental conditions in high speed cruise." Well, of course it would be given the speed and mass difference. The Q400's High Speed Cruise is around the 350 KTAS mark, some 20% faster than the AT...Jump to post
GalaxyFlyer wrote:Don’t confuse fuel consumption with efficiency. If true, we’d still be flying DC-6. The BT-67 flies 25% faster while carrying 43% more payload with more cargo volume.
But the Q400 carry 20% more passengers at the same level of comfort Actually, the vast majority of Q400s flying today are based on the 78 seat configuration (there are varations; my airline operates this config with two seats removed to fit an extended galley); 86/90 seat versions can be found most...Jump to post
Just looked at the wikipedia page and indeed the reworking is quite extensive, including the lengthening of the airframe. I was quite surprised that the new engines - they are much of course - were less fuel-efficient than the original ones from 80plus years ago. Here's Basler's own infographic, li...Jump to post
Also, a brief look at flights currently over Canada shows a fair number of non-speeding Q400s. In addition to the TAS/GS issue, there's also one other thing to consider when looking at North America: in the ~70 seat segment, there's effectively no option except the Q400 (unless ATR manages to break...Jump to post
Slightly offtopic, what would be your cheaper options to do the job? Realistically, you don't have much choice. Despite their similarities, the ATR-72 and Q400 are not direct competitors - yes, their markets overlap occasionally, but they were intended for two different types of operations. The ATR...Jump to post
The difference is the Dash 8 - Q400 can fly at High Speed Cruise (345KTAS) then you can do longer flights or catch up delay if you fly in delay. If I understood correctly, you're assuming that Q400 operators plan their flights to be in ATR performance brackets; this is not so. In the majority of Da...Jump to post
- ATR 72-600 Max Cruise Speed : 275 KTAS / Fuel Burn : 675 kg/Hour / Max capacity : 78 Pax - Dash 8 - Q400 : Long Range Cruise : 290 KTAS / Fuel Burn : 750kg/Hour / Max capacity : 90 Pax - Maintenance cost is lower on the ATR - Crews cost the same The difference is the Dash 8 - Q400 can fly at High...Jump to post
Is the Q400 production going smooth since DHC took over, I so hope the plane stays in production. During a press briefing at this year's Paris Air Show, company execs said that they dispatched their first Q400 just 18 days after formally starting business - and that they had completed their first f...Jump to post
Do you have an idea why very few EU operators jumped on this option? I can only speak for my carrier; in its case, many flights are pretty baggage-heavy (23 kg allowance for economy, up to 32 for business), and there's often some cargo and mail on board - so the front hold frequently comes in handy...Jump to post