Bruce From United States of America, joined May 1999, 5025 posts, RR: 17 Posted (10 years 8 months 1 week 1 day 14 hours ago) and read 2063 times:
In my recent cockpit tour I shot some great closeups and another yet to be added, but considering that I'm not a pilot just an enthusiast who likes to learn about the pilot's "office", I'd like to ask about the "technical name" for these different displays. I was really fortunate to be able to shoot the pics with all the gauges active instead of blank glass screens!
I know already that the readout of the engine operations is the EICAS, and the flap position above it, but what are the ones on the left? The top one looks like a Horizontal Position Indicator (right?) but there is also one on the glass display on the top photo that looks almost identical - is one just for backup? Is the middle one an Altimeter? It looks as if there is one also on the CRT display in the top photo but they seem to be showing different readings. What do you call the bottom gauge? The runway is 26 and I see the arrow pointing to it, so this must be navigation........... again there is an identical one on the CRT display. Also in the top photo what's the name of the gauge that shows your direction and nav fixes? And though you cant see it in these photos, what are the 3-digit numbers for that are on the end of the control stick handle?
Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
Tsentsan From Singapore, joined Jan 2002, 2016 posts, RR: 16 Reply 1, posted (10 years 8 months 1 week 1 day 10 hours ago) and read 2032 times:
I'm not a pilot so I may be wrong here..
Left screen - Navigation Display (ND) with AirSpeed Indicator (ASI) and Compass (??)
Right screen - Primary Flight Display (PFD) with Artifical Horizon (AH), (cant see bottom left one), Altitude Indicator, Vertical Speed Indicator.
3 analog gauges - Backup AH, Backup Altitude Indicator with Backup ASI, Bottom one I dont know the name, sorry!
Diego From Italy, joined Apr 2001, 135 posts, RR: 0 Reply 2, posted (10 years 8 months 1 week 1 day 10 hours ago) and read 2043 times:
hi bruce, your question is a kind of convoluted but i will try to provide you with the correct info:let's start with the top photo, the blue and brown instrument is called ADI or attitude director indicator ant it shows you, besides other minor info, the attitude of the airplane with respect to the horizon both in terms of pitch (up and down) and of bank, the autopilot mode, and the radio altimeter reading when your vertical distance from the terrain is less than 1500ft. It also includes a so called flight director or FD that basically guides you through the profile providing both pitch and bank corrections to fly the profile, read leveling off, shooting an approach or intersecting a radial, selected in the fms or flight management system. next to the ADI there is an altimeter that shows you the vertical distnace from an isobaric, read pressure, level, the so called altimeter setting, the reference pressure expressed in inches of mercury or in millibars, is shown on the dial of the instrument, when you fly above the transition altitude corresponding to FL180 in order to provide a common refernce for all the traffic, consider that the altimeter setting varies from an area to another depending on the temperature or on the altitude, the altimeter must be set to 29.92''Hg. Below the ADI there is the HSI or horizontal situation indicator that provides you with a pictorial view of the aircraft position with respect to the north, to a selected course or to the Glide slope if a loc ils frequency is entered in the nav equipment. next to it there is the IVSI or instantaneous vertical speed indicator that shows the rate of descent or ascent of the aircraft in thousands of feet. Since all those neat infotrmation are displayed on a crt or efis, electronic flight instrument system, the right one being called the PFD or primary flight display and the left one the ND or navigation display, to provide the pilot with a means of controlling the aircraft in the event of a complete electrical failure, a set of backup instruments consisting of a stby attitude indicator, of an altimeter/airspeed indicator and rmi or radio magnetic indicator, is included. The rmi shows the radial, when a vor frequency is tuned in the nav equipment or a bearing, when an ndb is tuned in, the airplane is on, you can read it under the tail of the pointer. If you wanna fly direct to a vor just turn until your heading matches the value indicated by the head of the pointer.
If you have any question about those instruments and how to use and read them, I will be more than happy to help you out.
PS I am a corporate pilot, I fly on learjet 31, 35 and on Gulfstream 2 and 4.
My email adress is email@example.com
Bruce From United States of America, joined May 1999, 5025 posts, RR: 17 Reply 3, posted (10 years 8 months 1 week 1 day 1 hour ago) and read 1980 times:
Ok....that explains a lot!! thanks....
I'm reading the rmi. The runway at this airport is 26, and i see where the fat arrow is pointed at 260. THe nav display shows our "heading" (?) as 346..which I'm not positive but I can believe it because when this plane was parked it was pointed more or less north, or close to it. On the rmi, the arrow at the top is pointed at 346..so that top arrow must indicate our bearing? Ok, what then does the dotted arrow indicate? it is pointing to a direction of 145. This was not the direction we arrived in (we arrived from the east/southeast) nor is it the direction we will depart since we will depart runway 26. So what is the difference between the fat and dotted arrow?
I know it's over-simplified but if i were reading the nav display I would say, this plane is now located at KONT and heading 346. But would I be correct to say that we will depart runway 26, join the POM departure on the 291 radial, direct to BUCCK?
Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
Cdfmxtech From United States of America, joined Jul 2000, 1338 posts, RR: 29 Reply 5, posted (10 years 8 months 4 days 4 hours ago) and read 1893 times:
First, it is important to note the following. The B737NG has 6 displays. 2 outboard displays, 2 inboard, 1 upper and 1 lower. The normal config is as follows:
Outbd = PFD
Inbd = ND
Upper = Eng Display
Lower = Standby. If upper fails, it will xfer eng data to lower display
There is switching available to have eng data on the inbd displays or ND on the Upper or lower displays.
Inbd Display - Navigation Display in normal mode. Shows FMC data on a compass rose/arc and some Primary flight instruments (Airspeed) and the RMI.
Outbd Display - Primary Flight Display in normal mode. Shows Altimeter, ADI, HSi and VSI (Vertical speed indicator).
The numbers on the control cokumn are thr trip indicator. The input flight numebrs on there for quick reference. Don't know what they do when the flight nu,ber of 4 digits though!
The Engine display on this next gen configuration is NOT an EICAS display.
EICAS is a system on the B757/767/777 and it's information is displayed on EICAS displays on those aircraft. I understand that some B737NG common display system have ND and PFDs that have grpaphics like the B777s. I do not know if they have EICAS. I doubt they do since that would be very "Un 737 like", and that's what most airlines want (to stay common with early B737s). With EICAS (Engine Indicating and Crew Alert System), engine data such as rotor speed, EGT, fuel flow and oil indications are shown. But in this config, there is no crew alerting system (Level A, B, C messages indicating system malfunciotns/conditions). It is just called the Engine Display. The bottom engine display (u have the upper eng photgraphed) is not used until switched or the upper fails.
Md11nut From , joined Dec 1969, posts, RR: Reply 6, posted (10 years 8 months 4 days 2 hours ago) and read 1872 times:
Hi there Bruce,
I'll give it a try at interpreting the Navigation display...which is a great picture btw. From the Mach/airspeed indicator display, it's obvious that the airplane is not moving. Takeoff Vspeed is not set. From the Radio Distance Magnetic Indicator (RDMI) two VORs (shown in green, ADF info is shown in cyan) are tuned. VOR-1 is the dotted arrow 8.9 miles DME, VOR-2 is the wide arrow, no DME info. From the map, it is further shown that VOR-1 is manually tuned to what looked like POM and VOR-2 to PDZ (Pomona? and Paradise?). The MAP shows (Magnetic) TRACK UP which may explain why the selected course/radial on the map does not quite match with the RDMI (being magnetic heading, and not track). The MAP range is set at 80nm. The airports are being shown...to the North I can see Victorville, Palmdale, Edwards and Mojave...
The magenta line to POM and BUCCK indicates the route as programmed in the FMS. Interestingly note the dotted magenta line straight to the left just north of the aircraft position (KONT), that is the pilot-selected heading, as also supported by the magenta bowtie on the Horizontal Situation Indicator (HSI)--the one almost entirely obscured by the yoke.