jagipson
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Posts posted by jagipson
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On XP11, it appears that ground services aren't always available. As soon as cold-and-dark sim starts, the 737 starts slowly rolling. The location doesn't have external power available, and I don't want to start the APU yet. I turn the battery on, and the electric hyd pumps don't start, so I assume they need AC power? At any rate, I establish AC using standby power ON, and the elec hydro pumps still don't work, so perhaps they don't run off the standby bus? What busses are they powered from and how can I prevent my plane from rolling?
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55 minutes ago, lanmancz said:
Now obviously you will need to do the short turnaround checklist eventually (before pushback) if you're starting from cold & dark.
2. FMC setup
--- at this point I do short turnaround checklist which starts the APU etc. which makes me ready for pushback ---
3. Pushback & startup
Thank you for the link to the thread with the documents. I guess the problem I had, is it wasn't obvious to me that the short turnaround checklist had to be completed in addition to the long turnaround checklist if, and only if starting from cold & dark. Now that I know the short turnaround list needs to be completed after FMC during cold and dark startups, I won't make that mistake.
On a slightly related note, It appears that you're doing engine starts after pushback, before taxi. This obviously requires the use of the APU. Realistically, how often does that really happen? I was under the impression that in real life, the APU is often broken and/or the airline is being cheap and requiring pilots to start one engine at the gate using the ground services, and then taxi on that engine and start the second engine during the pre-takeoff checklist (after taxi, before entering the runway). What is your impressions or others' impressions about the typical flow of events in real life? Did I get a false impression?
Finally, Thank you for sharing your checklist!
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I'm confused about what order the checklists need to be done in, and how to use the short and long versions of the turnaround lists. When I did a long turnaround from cold and dark, I wound up starting my engines without the hydraulics on, and the plane started rolling.
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File Name: KEDC - Austin Executive Airport
File Submitter: jagipson
File Submitted: 20 Jan 2015
File Category: DSF Scenery Packages
X-Plane Version(s): X-Plane 10Requirements:
opensceneryx (Optional, highly recommended)
X-Plane 10 ( well maybe >= 9.6 but untested
The main hanger, service hanger, covered apron and terminal were all hand-drawn using Google Sketchup and some photos. The remainder of the objects are X-plane 10 standard library and OpenSceneryX library objects.This is the first in a series I will release aptly-named Minor Airports of Central Texas which will also feature KGTU (Georgetown), KHYI (San Marcos Municipal Airport), and T86 (Gillespie County Airport, featuring the hanger hotel, a popular getaway for puddle jumpers).This is the new Austin Executive Airport, located next to the CWK VOR. It is a private endeavor which was opened as a releaver for Austin Bergstrom.I've personally never been there - I've constructed the airport from photos and satellite photography. If any RW pilots have been there, or go there, please send me some photos so I can make improvements.I hope you enjoy it. See you on Vatsim.
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File Name: Circuit of the Americas Heliport
File Submitter: jagipson
File Submitted: 21 Dec 2013
File Category: DSF Scenery Packages
X-Plane Version(s): X-Plane 10This scenery package adds the 2 concrete and 6 grass helipads in the precise location for the Circuit of the Americas (COTA), the track in Austin, Texas that hosts the Formula1 Grand Prix. Sorry, the race track facility isn't in this package -- it's the heliport only, however this adds a great option for practicing short haul heli flights as you ferry F1 fans from nearby Austin Bergstrom (KAUS) and Austin Executive (KEDC). Be sure to download my KEDC scenery package as it has the necessary helipads.
Have fun! -
File Name: LaCrosse Wisconsin - KLSE
File Submitter: jagipson
File Submitted: 28 Nov 2013
File Category: DSF Scenery Packages
X-Plane Version(s): X-Plane 10HAPPY THANKSGIVING.
To celebrate, here's LaCrosse Wisconsin. KLSE.
NOTE: There is currently a navaid issue which will be addressed in a future X-plane update. If you do not correct this, then the glidescope transmitter for R18 will appear (almost) on top of a taxiway. Since the data was updated, the taxiway and glidescope transmitter was moved. This airport file places the taxiway in the correct location, but you must (optionally) edit the earth_nav.dat file if you want to move the glide scope transmitter to the correct location. In a future update of X-plane, this will be fixed. Until then, you will need to edit the earth_nav.dat file after every time you update X-plane.
Find the line in earth_nav.dat contains "ILSE" and ends with "GS", edit the lat/lng (second and third field) to match this line:
6 43.89033333 -091.25760000 652 11110 10 300179.446 ILSE KLSE 18 GS -
process to ensure information is clear to our customers, including OS architecture support and X-Plane typeI will say this much. I have never seen an X-plane add-on that was as clear about what arches/platforms/revs it could work with as this page, so congrats on finding a way to present it so clearly.
I'll await for an email or some announcement that the new version is ready. I think I'll ignore the website for the time being -- no need to sell the product to me as I bought it ages ago.
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Oh. Since the product page is updated to feature v. 1.5 and it doesn't say "Coming Soon", one would assume that it is available. Duh!
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How do I download it? My account says 0 downloads remaining... Will X-Aviation customers be downloading via order history download links, or will there be an email going out?
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Let's MU-ve on, shall we?
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File Name: Gillespie County Airport
File Submitter: jagipson
File Submitted: 25 May 2013
File Category: DSF Scenery Packages
X-Plane Version(s): X-Plane 10T82
Gillespie County Airport, Gillespie County Texas (Hill Country Region)
* OpenSceneryX strongly recommended
Original taxiway and apron from satellite images.
Featuring these original objects:- Hangar Hotel
- Airport Diner
- WWII searchlight
- Vintage Billboard
- Antique Watertower
- Dog-run style terminal and administration buildings
Also features a modified airport beacon (combining two library objects).
Several other objects from OpenScenery and the standard X-plane libraries have also been set.
This is a pilots' favorite, drawn from memory (with the help of several photos).
This scenery has been developed and tested in X-Plane 10, buy similar scenery that I've created has been reported to work in latter versions of X-Plane 9.
NOTE REGARDING THE TERRAIN:The alternative HD Mesh for this area greatly improves the experience, and even makes the Hill Country area look like The Hill Country. It's a distinctly separate add-on from this one, but highly recommended as it fixes other geological issues. Prior to installing this, I had to use GPS to pick out Enchanted Rock. With this add-on, the distinctive volcanic skeleton is visually identifiable. A special thanks to Andras for preparing this. It has made VFR flying in Central Texas worthwhile.
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File Name: KEDC Austin Executive Airport
File Submitter: jagipson
File Submitted: 20 May 2013
File Category: DSF Scenery Packages
X-Plane Version(s): X-Plane 10The main hanger, service hanger, covered apron and terminal were all hand-drawn using Google Sketchup and some photos. The remainder of the objects are X-plane 10 standard library and OpenSceneryX library objects.This is the first in a series I will release aptly-named Minor Airports of Central Texas which will also feature KGTU (Georgetown), KHYI (San Marcos Municipal Airport), and T86 (Gillespie County Airport, featuring the hanger hotel, a popular getaway for puddle jumpers).This is the new Austin Executive Airport, located next to the CWK VOR. It is a private endeavor which was opened as a releaver for Austin Bergstrom.I've personally never been there - I've constructed the airport from photos and satellite photography. If any RW pilots have been there, or go there, please send me some photos so I can make improvements.I hope you enjoy it. See you on Vatsim.
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I never tried it! Always manually entered the limit using the reference table. Never mind then. Cheers for your work!Nevertheless, I've just added it. Dry runway requirement was already on the Main Calculation sheet at the very bottom. I have added Wet. Thanks for the feedback.
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Isn't reduced thrust TO setting done automatically by the FMC on the PERF page when entering the temperature?
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If you can open my spreadsheet, you will see how I did it (you need to unhide the hidden spreadsheets). i also calculated the runway length based on the dry-wet condition. Getting these data (temperature and runway condition) from the metar may be tricky. If you get it as fixed width text, you could perhaps do the text to columns function and then use the appropriate column for the value determination. Do I make sense?
I have no Excel so I can't even open your spreadsheet
However, I have just released Version 4.0 which incorporates all the tables from the POH and it now calculates using the Vspeed Corrections. The way I implemented this was to add all the VSpeed Correction tables for each weight class (lots of typing) and perform a series of lookup functions to grab the right values. The corrections are then added to the 8 degree and 20 degree V1 and VR values on the main calculations sheet.
Grab the new version here:
http://drive.google.com/templates?q=crj200
I don't see a calculation for wet vs. dry runway length in the POH. Where is that from?
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For example, Vspeed correction at 2000 ft and 30 C is +2 (18000 kg). If V1 = 122, the corrected speed should be 124. Is this right? So, I was just asking whether your calculated speeds take that into account. Cheers.
Ah, the V-Speeds. That functionallity was on the original spreadsheet that came with the plane, and I just ported it to Google Spreadsheet. They do _not_ appear to adjust for ISA conditions or altitude. I'd be happy do make this modification if someone can tell me how to determine the ISA adjustment from METAR data.
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Jagipson, you beat me on that one! :-)
Do you use speed correction based on temp and altitude? Also, do you estimate the runway length based on wet vs dry conditions? Also, in Main Calculations worksheet, I entered Fuel on board of 8000, and it shows me %MAC and Stab Trim for LW (actual) as #N/A. There may be some error in the formula. Otherwise, great work!
I'm not sure where you are referring to a Speed Correction. Can you tell me the sheet name and Cell address?
Also the #N/A in Cells E35 and F35 can happen if the value you enter for Fuel at TOD (cell C34) is greater than the initial fuel (C28). This can only happen if you did mid-air refueling. See if that's the problem.
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Hi Jagipson.
Can't load it. As the previous version, can you edit an xls one ?
Anyway, nice job.
Do you mean you could not open either this version or the previous version of the spread sheet? Did you press the "Use This Template" button? Can you priv msg me a screen shot?
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Announcement:
I have just released version 3.0 of my CRJ-200 Weight and Balance Spreadsheet Template. It is a Google Doc, so it should work in any modern browser. You need no special software, but you do need a Google account.
Http://drive.google.com/templates?q=crj200
New features:
Aircraft Menu (Appears on the menu bar 10 seconds after spreadsheet loads)
Automatically fills out the spreadsheet using randomized loads on PAX/Baggage based on a Male/Female PAX ratio you specify (typically 0.7) and a minimum and maximum number of PAX. Access this feature by using Load Aircraft on the Aircraft Menu.
Automatically fetches METAR, Field Elevation, Pressure, and Temperature on the Main Calculations page when you use Fetch WX on the Aircraft Menu. Before selecting this menu item, be sure to fill out your Origin, Destination, and Alternate airports in A4, A9 and A14 cells. This feature only works for U.S. airports. If someone can get me some info for Aus or EU airport METAR web services, then I might be able to expand coverage.
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I'm a little confused about the update. Has 1.5 been released? I would expect my download count at X-Aviation for that plane to have been reset.
Also, I think I need to do a "clean install" of the file once I do get it downloaded. I'm pretty sure my current MU-2 is hosed, since I can't get it off the ground in XP-10 due to roll-trim issue, but nobody else reports this problem. What's the best way to do a "clean" install, and is a clean install recommended for the update?
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OK. Something like that...
http://www.igorland....p_igorland.xlsx
jagipson, I used some of your formulas. I hope you won't mind -- they are just too good to be ignored.
I certainly don't mind. Use/modify it to your heart's content.
I just got to the point of calculating the indexes. I modified the original jagipson's table:
1) Inserted an option to select seats using a plane chart;
2) Modified the formula to calculate the Passengers' Index. As I mentioned before, the relationship is not perfectly linear, so in my table the index is calculated using a ratio (index point per lb) based on the values in the CRJ-200 manual;
3) The Fuel index is more complex. I inserted three median points between every two values, and then used an interpolation formula. The calculated index is more or less exact now.
Please let me know if you notice a bug.
Cheers,
The ability to adjust PAX per-seat is probably only helpful for getting an exact FORE/AFT CG Offset for setting in the plane's Weight/Balance window. I RL the crew doesn't know the actual weights of people in the seats, in fact I don't think they pay attention to their sex, either. I think they just rough-out an estimate using the per-zone PAX head-count and a standard generic person weight. When I buy commercial tickets, they never ask me my sex. I suppose it's possible they could "guess" based on my first name, but I doubt they even do that, since the effort of calculating *exact* trim settings based on PAX weight/seat arm values hits a point of diminishing returns quickly after a plain per-zone head-count.
So I guess if you want to be ultra realistic, use the exact PAX weight/seat arm value calculation to setup the aircraft weight/balance, but then calculate your trims using the generic head-count per zones as in the POH (since that's what a RL pilot would most likely do).
Any RL pilots want to chime in on this? Please do. I've never flown anything.
Thanks for sharing your spreadsheet, igorland -- but could you maybe make a Google Docs template out of it and share it? Then people who do not have Excel can benefit from it.
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Thanks, jagipson. So if I understand it correctly, for example, Index for 3 passengers in Zone A is 4.9 only for an average passenger weighting 176 lb (in other words, index 4.9 is for total weight 528 lb). So, if I want to get the index for one man, one woman, and one child sitting in zone A (based on the revised standards), the index will be:
(200+179+79 [forgot what the exact weight for a child acccording to FAA is])*0.009[index point per 1 lb based on the manual] = 4.1.
Is this correct?
Thank you if you find time to clarify. Best.
I get 4.2 but that's very likely a rounding issue in the spreadsheet. An index difference of 0.1 isn't going to effect the trim settings noticeably.
Your calculations look correct to me!
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Hi jagipson, the mods you've done look great!
I can't find the FCOM Part 2 (Performance Planning) for the CRJ anyware
, and have only managed to find parts of the CRJ 100/200 AIRPORT PLANNING MANUAL. But attached is Section 3 which deals with FAR Takeoff Runway Length Requirements for the CRJ-100/200, I hope it will be of some use if you go ahead with adding T/O distance calculations to your spreadsheet.cessna729.
I'm at a loss as to how to translate those charts to a mathematical formula
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Great table, jagipson! Very helpful when planning the flights. Especially when flying on VATSIM and every minute counts otherwise your arrival ATC will be closed by the time you get there.
I wanted to modify the table a little bit to be able to actually select the seats and choose who sits there (man, woman or child), so that the Passenger Index would be calculated based on that. I can use the pax index formula that you use, however it is not perfectly linear and sometimes the index gets skewed (by .1 or so -- not really significant but still). So, if I understood the literature correctly, I should find arms for the fuselage stations, multiply them by the weight in that station = moment. Then I can find CG by dividing total moment by total weight. And so on. The problem is that I simply cannot find arm values or arm centroids for passenger zones for CRJ-200 on Internet. Unbelievable, spent four days googling them -- just not there.
I would appreciate if someone can clarify or help me locate the arms for CRJ-200. Thank you!
The spreadsheet calculates things the same way that the manual does, except that it allows for differentiating between male and female PAX and allows for setting the standard weight for them. Actually what the spreadsheet does is recalculate these into "standard people" the typical PAX used in the manual. The index values only have meaning when done this way (within the context in the manual).
It is likely that these PAX zones are used in RL, but very unlikely that in RL the airline weighs all passengers, and calculates their arm values based on their seats.
That having been said, the arm is the shortest distance from the center of the seat to a tangent of the tip of the nose (usually). This is more commonly expressed as "how far back the seat is from the nose." You could open the plane in planemaker or use a planview of the plane for this information.
[XP11] IXEG needs wheel chocks
in Bug Reports
Posted
Roger that. I'll sit tight in the mean time, then.