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gbalean

Is this normal?

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Hi All!After around 10 flights in my new favourite model 737 (the 800 :)) I have a few questions...When landing, it now takes much longer to slow down with autobrakes, speed brakes and thrust reversers. Before, I just landed and it slowed down, but now I have to use manual braking at the same time as the autobrakes are engaged to achieve the same result. Is this normal, because without this manual braking it won't stop like the real deal at for eg. YSCB.Next, once I am on the ground and taxiing, the FMC seems to think that I am going to do the trip I have just finished all over again, and complains about insufficient fuel for the trip (note I have plenty of fuel, just not enough for an entire flight) and unable to maintain cruise altitude.Is there a convienient button to wipe a trip from the FMC to begin afresh for a new flight?Why does the ILS Glideslope and Localiser diamond and track on the PFD flash occasionally during the approach? Is this something to do with your Radio Altitude?When starting the engines, the manual says to flip the fuel cutoff switches when N2 reaches 25%. The N2 slows down almost to a dead halt at 20 however, and then repeats the startup sound unnaturally if you don't flick the switches up then. There was a post on this prior to all the upgrade posts in the forums. Is this right / will this be patched?Finally, prior to the 800/900 upgrade, I used the fuel planning table or the 3rd Party 737NG Fuel Planner by Ross Carlton to load fuel into the aircraft. If I used the correct data, the FMC always told me that there wouldn't be enough fuel, and I ran out of fuel on the trip. I eventually just used the FMC's expectations as a reference as to how much fuel to board or added 300NM to the actual distance, using trial and error with loadings (remembering that the first 1000lb go in the centre ;)). Is this fixed / am I doing something wrong (all data was right though)?Thanks a lot in advance! I hope you followed me through all that :)Geoffrey BaleanCanberra, AU (YSCB)http://www.precisionmanuals.com/images/forum/800driver.jpg"Today is the tomorrow you worried about yesturday. All is well!"Pentium 4 2.4GHZ, P4G8X Deluxe with Broadcom NetXtreme Gigabit Ethernet, 512MB RAM, LG Flatron L1710S 17" LCD, Creative Soundblaster Audigy, Logitech Speakers, CH Yoke & Rudder, Quantum Fireballp AS30.0 - Basically nothing crash hot :)

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Guest EISN_CONTROL

When landing, it now takes much longer to slow down with autobrakes, speed brakes and thrust reversersWhat do you expect? It's a much much bigger aircraft and it's substanially heavier,meaning more momentum and a landing speed.You should NOT use manual braking with the autobrake as you'll only end up overheating the brakes and wearing down the tires.If you need to stop fast,select a higher autobrake setting,use a higher reverse thrust setting and carry less fuel so your speed will be lower.Landing with flaps 40 is a good idea too.Is there a convienient button to wipe a trip from the FMC to begin afresh for a new flight?On the RTE page,delete the Origin,it'll clear everything.The N2 slows down almost to a dead halt at 20 however, and then repeats the startup sound unnaturallyThis appears to be a soundset problem discussed in other threads, you should in fact trip the fuel cuttoff at 25%,but the engine startup sound only lasts as long as 20%,and because the engines are still starting,it'll play the sound again. :(I dont understand the last Q,sorryJohn http://homepage.eircom.net/~eamonnmca/images/logo_ba.JPGwww.bavirtual.co.uk Senior Captain Simflight.com Staff Reviewer

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It is bigger isn't it ;)I however have been on one of these beauties into Canberra (YSCB) and know that they used Autobrakes 2. When I use this in the Sim, it doesn't allow me to exit on the same taxiway, although I [try to] come in fairly slowly. Arrghh it may be me but I want to let you know what I think might be a bit 'off'. ;)In regards to the last question, I mean that using the fuel planning tables included in the manuals, I run out of fuel, and have to compensate by pretending I will fly further than I really will. :DThanks for your very fast reply John!Geoffrey BaleanCanberra, AU (YSCB)http://www.precisionmanuals.com/images/forum/800driver.jpg"Today is the tomorrow you worried about yesturday. All is well!"Pentium 4 2.4GHZ, P4G8X Deluxe with Broadcom NetXtreme Gigabit Ethernet, 512MB RAM, LG Flatron L1710S 17" LCD, Creative Soundblaster Audigy, Logitech Speakers, CH Yoke & Rudder, Quantum Fireballp AS30.0 - Basically nothing crash hot :)

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Guest EISN_CONTROL

Perhaps the 738 wasn't fully loaded? The weather suited better conditions for slowing....etc etcCould be anything but now you've gotten me interested :)As for fuel planning,I use FSBUILD 2.0,used in conjunction with Activesky 2004. I always have enough fuel to get to my destination and alternate and a little more :)Perhaps you should try it? It really is something else ;)John http://homepage.eircom.net/~eamonnmca/images/logo_ba.JPGwww.bavirtual.co.uk Senior Captain Simflight.com Staff Reviewer

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Hi Again :DDo you think it could be that I haven't set up my loads since ugrading? It's empty. What settings do you have for 800 Mixed?Why do you recommend FSBUILD & Activesky? (Not in a asking why you wrote that but asking what you think makes them good) Does Activesky work properly with the PMDG 737 now? I thought a while ago there were a few probs, or was that another weather product?Geoffrey BaleanCanberra, AU (YSCB)http://www.precisionmanuals.com/images/forum/800driver.jpg"Today is the tomorrow you worried about yesturday. All is well!"Pentium 4 2.4GHZ, P4G8X Deluxe with Broadcom NetXtreme Gigabit Ethernet, 512MB RAM, LG Flatron L1710S 17" LCD, Creative Soundblaster Audigy, Logitech Speakers, CH Yoke & Rudder, Quantum Fireballp AS30.0 - Basically nothing crash hot :)

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John, you can't overheat the brakes by using autobrakes and manual braking. Why? Because there is no such thing! The moment you step on the brakes, it will disconnect the autobrakes. I don't know how PMDG modelled this, I'm going to test this later on. With the -600/-700 this was buggy as using manual brakes did not disconnect the autobrakes.Regards,Mark

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Don't forget to let us know what you found ;) I didn't know brakes should disable autobrakes. hmmm. v interesting in the braking department.Geoffrey BaleanCanberra, AU (YSCB)http://www.precisionmanuals.com/images/forum/800driver.jpg"Today is the tomorrow you worried about yesturday. All is well!"Pentium 4 2.4GHZ, P4G8X Deluxe with Broadcom NetXtreme Gigabit Ethernet, 512MB RAM, LG Flatron L1710S 17" LCD, Creative Soundblaster Audigy, Logitech Speakers, CH Yoke & Rudder, Quantum Fireballp AS30.0 - Basically nothing crash hot :)

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Guest EISN_CONTROL

Marcom,a good and valid point,but I don't believe I made myself clear.Using Manual braking while landing is risky as excessive use at such a speed which unquestionably cause damage to either/or the brakes and gear.John http://homepage.eircom.net/~eamonnmca/images/logo_ba.JPGwww.bavirtual.co.uk Senior Captain Simflight.com Staff Reviewer

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Guest EISN_CONTROL

Geoffrey,I use Activesky 2004 to download the weather for the entire globe.I then start Fsbuild and set my routing up. I enter my aircraft info, my reserves,Payload, cont. fuel etc and generate the route.I have a printed Nav Log including predicted winds aloft aswell as routing info and alternates.When I load the aircraft,I just enter the DepARR into the Co-route.E.g Routing from EIDW->EGKK . Co-route would be EIDWEGKKThe route would be populated straight away,All I'd have to do is double check it.Handy eh? ;)John http://homepage.eircom.net/~eamonnmca/images/logo_ba.JPGwww.bavirtual.co.uk Senior Captain Simflight.com Staff Reviewer

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John, this is just not correct. Where did you get this information?The autobrakes aren't used with every landing, you know!You can modulate the brakes (its not like MSFS where you either get 3000 PSI or nothing).You still have the antiskid which will prevent tyre blowout.Regards,Mark

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"And also bear in mind that I'm talking about the PMDG 738 used in MSFS,where it is in fact 3000psi or nothing..."Well you didn't mention that before. Anyway, if you're talking FS then remember, you can't damage anything by braking!

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@JohnVery convienient :) Hope to get them soon :)Is the Co-Route is just the 2 ICAO codes put together?What payloads do you have set up for your 800 mixed?@MarkYou seem to know your stuff Mark ;) Just play nice though :D@anyoneTo state again v simply, the braking doesn't appear to be adequate, even on a default empty plane.Don't forget about the other questions too :)Geoffrey BaleanCanberra, AU (YSCB)http://www.precisionmanuals.com/images/forum/800driver.jpg"Today is the tomorrow you worried about yesturday. All is well!"Pentium 4 2.4GHZ, P4G8X Deluxe with Broadcom NetXtreme Gigabit Ethernet, 512MB RAM, LG Flatron L1710S 17" LCD, Creative Soundblaster Audigy, Logitech Speakers, CH Yoke & Rudder, Quantum Fireballp AS30.0 - Basically nothing crash hot :)

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John,There's no risk in using manual braking. Finnair uses autobraking in 757 operations only when absolutely needed, manual braking is the norm, and is perfectly ok. Of course you can overheat the brakes, but it's expected that the pilot knows how to brake his aircraft if he's able to fly it.Tero

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Guest EISN_CONTROL

Tero,Yep,I would hope that anyone capable of putting an airliner on a relatively thin piece of deck can stop the aircraft in a safe manner :-rollBut you also understand my point that excessive braking can cause damage,that's all I was trying to point out. Mainly due to the fact that in FS,progressive braking isnt really possible,as Mark said-you're either braking pretty much full force or your not. Hence,the use of Autobrakes... John http://homepage.eircom.net/~eamonnmca/images/logo_ba.JPGwww.bavirtual.co.uk Senior Captain Simflight.com Staff Reviewer

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Guest HepburnUGA

With regards to autobrakes, it should also be noted that the autobrake system commands a constant deceleration rate. This means that using no, idle, or full reverse thrust will not make any difference in how fast the aircraft slows down. It only makes a difference on brake wear & tear.I have also in my experience as a business traveler noticed that the application of manual braking (at least on Delta) generally occurs around the time reverse thrust is brought to idle...around 80 knots.My procedure is generally autobrakes to 80 knots and moderate reverse thrust, and then manual braking to turn-off speed.BTW, Thanks you PMDG for modeling the autobrakes disarm when manual brakes are applied.Take care,

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