pvi 800 and inu points instruction videos

where can i find instruction videos on how to use the pvi 800 and inu points? wags has instruction videos,but i need more info on how to use them.i have been going over the abris moving map system,but with some small results.

I made this one a while back on using the PVI-800 and the autopilot system to fly a preset route for you. People seem to like it.

i have seen this one and i have learned how to use the AP. thanks. there are other buttons and other pvi 800 functions that i have no clue about. i'm really trying to learn the NAV system of the ka-50. what is the function of this 5th button near the switches 2 on the AP panel?( the 5th blue push button).

For information on the FDAP (Flight Director, or FD) function, take a look at this thread. The information immediately relevant is in the fifth section, "Stability Augmentation and Flight Director."

BeeSting- More info needed, is there something specific about the PVI800 you wanted to know? Your question is a little vague.

It sounds to me like the question is how to perform an INU fix with the PVI-800?

where can i find instruction videos on how to use the pvi 800 and inu points? wags has instruction videos,but i need more info on how to use them.i have been going over the abris moving map system,but with some small results.

I guess the best place to start is the general specifications of the PVI-800 control panel. There are 25 buttons on the panel:

 

 

• 4 Navigation Tasks
  
• 5 Information Displays
  
• 4 Alignment
  
• 12 Data Entry
  

NAVIGATION TASKS

A "task" is a mode of PVI-800 operation. To use a task you press the task button so it illuminates and then press a number button corresponding to the task point you wish to use. Only one navigation task can be active at a time. The number in in <x> is how many of that type can be used by the PVI-800.

 

• WPT (Waypoint) <6>
  
• FIX PNT (Fix Point) <4>
  
• AIR FIELD (Airfield) <2>
  
• NAV TGT (Target) <10>
  

INFORMATION DISPLAYS

These display modes use the top two line areas of the PVI-800's display to show information such as distances, times, headings, stored wind information, etc. These displays only show information and do not affect the aircraft in any way.

 

• SELF COOR
  
• DTA | DH
  
• WIND DI/SP
  
• T-HEAD | TIME/DIS
  
• HEAD/RA | TGT PNT
  

ALIGNMENT

Buttons relating to the INU's alignment are located on the right hand side of the PVI-800 panel. Three of the buttons begin INU alignment programs while the INIT PNT button allows the user to manually type in the coordinates to align to. During normal operation it is extremely unlikely the user will be required to press these buttons.

• INU RERUN
  
• INU PREC
  
• INU NORM
  
• INIT PNT
  

DATA ENTRY

The numerical entry buttons should be self explanatory. These buttons allow the user to enter in coordinates or wind information when the PVI-800 is in edit mode.

• 0 (+), 1 (-), 2, 3, 4, 5, 6, 7, 8, 9
  
• ENTER
  
• RESET
  

All coordinates are entered as 13-digit sequences (6 for the top line, 7 for the bottom).

Ex. N14°36'30'', W7°12'18''

+14°36'30'', -007°12'18''

+14°36.5', -007°12.3'

And would be entered as:0-1-4-3-6-5-1-0-0-7-1-2-3.

COMMON PROCEDURE: Navigating in AIR FIELD Task Mode with Route Switch On

1. Illuminate AIR FIELD task light on the PVI-800 panel.

2. Select point number of task point desired (1 is departing airfield, 2 is arriving airfield if different from one.)

3. Place DH/DT switch in position DH or position DT, behavior is the same.

4. Move route-descent switch to ROUTE position to engage autopilot behavior.

COMMON PROCEDURE: Navigating in NAV TGT Task Mode with Route Switch On

1. Illuminate NAV TGT task light on the PVI-800 panel.

2. Select point number of task point desired (1, 2, 3, 4, 5, 6, 7, 8, 9, or 0)

3. Place DH/DT switch in position DH or position DT, behavior is the same.

4. Move route-descent switch to ROUTE position to engage autopilot behavior.

COMMON PROCEDURE: Navigating in WPT Task Mode with Route Switch On

1. Illuminate WPT task light on the PVI-800 panel.

2. Select point number of task point desired (1, 2, 3, 4, 5, or 6)

OPTION

3a. Place DH/DT switch in position DH to travel point directly to each task point.

3b. Place DH/DT switch in position DT to travel along route lines between points 1-2, 2-3, 3-4, 4-5, and 5-6.

4. Move route-descent switch to ROUTE position to engage autopilot behavior.

Note: WPT Task Mode with Route Switch On is the only task mode that will automatically change the task point to the next; 1 to 2, 2 to 3, 3 to 4, 4 to 5, and 5 to 6. After task point 6 the autopilot will fly in a straight line.

Note: Any of the above procedures with the route-descent switch in the OFF position will give visual HSI, ADI, and HUD navigation cues but the autopilot will not attempt to fly the helicopter to the task point. Instead it will be the pilot's job to follow the visual indications.

well i want to know the functions of each button and what are their purpose. i know this much that you can use inu points when your abris map isn't working right. inu points can update the NAV system. i know how to use the AP and the pvi 800 together. the moderator is right!(It sounds to me like the question is how to perform an INU fix with the PVI-800?)

WPT, NAV TGT, and AIR FIELD buttons let the autopilot fly to those points.

FIX PNT selects what pre-programmed coordinate (1-4) is going to be used to update the navigation position.

---

SELF COORD shows where the PVI-800 thinks the helicopter is right now.

DH-DT shows information depending on the DH/DT switch.

In DH position: Desired Track Angle (°) / ETA (minutes) / Distance (km)

In DT position: Crosstrack Error (100m) / ETA (minutes) / Distance (km)

WIND DI/SP

Wind direction (° from) / Wind Speed (m/s)

T-HEAD | TIME/DIS

Direction to final task point (°T) / ETA (minutes) / Distance (km)

HEAD/RA | TGT PNT

Direction to task point (°) / Distance (km)

---

INU RERUN

In-flight INU alignment (no function)

INU PREC

Precision INU alignment (30 min, on ground)

INU NORM

Normal INU alignment (??min, on ground)

INIT PNT

INU alignment coordinates

now you have the knob that has sim,k-1,and k-2. can that make a difference?

OFF

Off

 

CHECK

Passive view of entered data

 

EDIT

Changes allowed mode

 

OPER

Normal operation

 

SIM

Same as Check mode but assumes 1000kt GS for time displays

 

K1

No function

 

K2

No function

EDIT and OPER are the two modes you will spend 99.99% of your time in.

"All coordinates are entered as 13-digit sequences (6 for the top line, 7 for the bottom).

Ex. N14°36'30'', W7°12'18''

+14°36'30'', -007°12'18''

+14°36.5', -007°12.3'

And would be entered as:0-1-4-3-6-5-1-0-0-7-1-2-3."

this has confused me for some time and i still dont really understand how i calculate the last didgits?

36'30 becomes 36.5 and 12'18 becomes 12.3

if the value had been, leta say, 36'10 what would be the input then? can you clarify this more plz?

Sure Cradle,

The last two digits are what we call seconds, since the LAT LONG format is usually in degrees, minutes, and seconds. Some equipment, like our PVI, needs the seconds in a decimal form.

So what you do is simply divide the seconds by 60, as in 60 seconds in a minute, and round the result to a single digit.

In your example, 36'30, take the last set of digits, 30, and divide by 60. You get .5. 12'18 is next. Take the 18, divide it by 60, and you end up with 12.3.

For your second example, 36'10, take 10, divide it by 60. The result is about .166 Round it to .2.

Now that you've seen how to do it, you can understand that what we are doing is converting a format that has degreeºminute'second" in simply degreeºminute', but we don't want to lose the precision of the seconds, so we convert them to a fraction of a minute (by dividing by 60) then add it to the original minutes.

Makes sense?

Yeah, convert 23' and 43/60ths of a minute (a.k.a. 23'43'') into 23.7166666666666' which is 23.7'.

thx

that made a lot of sense :) now to "pound" it into my skull so i can do it without thinking while flying.

it seems like there´s really REALLY great many things in this game that ppl with IRL experience know of and take for granted that we that never even seen the inside of a real AC -let alone a fightercraft, have no way of knowing unless lots of research.. this problem i had with the didgits is just one example. i wonder how many other things i dont to right or dont even know that im able to do?

a rock solid, easy to understand "what you can and should do, when you are supposed to do it, and how you do it"-guide would be nice reading.... :)

Honestly I don't convert while flying. The ABRIS has an options page where you can set all manner of things like how close you have to be to a waypoint to step to the next, the XTE scale, North-up vs Route-up, etc.

One such option is to change the coordinate format from Minutes' Seconds'' to Minutes.Decimal' which of course matches the PVI's format. Thus all you have to do is round.

You can do it every flight or LUA edit to make it that way by default: http://forums.eagle.ru/showthread.php?t=37116

Great posts Frederf!

If I follow the instructions for editing a waypoint in the PVI on page 6-63 of the flight manual it doesn't work. After I enter the N/S coordinate I cannot continue. Can anyone correct me on this proceedure?

Thanks

You have to enter a 0/1 for a +/- for the latitude. + is East while - is West. Also 9°30.0"E is entered as 0-009-30-0-ENTER. You need preceding zero(s) for latitude degrees of one or two digits.

Thanks Frederf,

That makes sense. I'll give it a try. But I'm still confused by a part of the instruction.

" Note that you should indicate N/S or E/W prior

to entering the coordinate."

How do I do that?

Short answer: You determine N/S or E/W by preceding the digits of the coordinate with a + or -.

If you look to the left of the main lat/long fields you'll see there are little circular indicator lights. They display a "+" or "-" and are considered part of the value in the field to the right. Your first digit (0 or 1) determines whether the light is a "+" or a "-". You'll also notice that the 0 and 1 keys themselves have the + and - symbols on them along with the digit.

The convention with the PVI-800 is Northern latitudes are positive so +45° would be 45°N and -45° would be 45°S. West is negative and East is positive for longitude.

It would be intuitively obvious to even the most casual of observers. Except me. Thanks again, Frederf.

Well done Frederf! :thumbup:

Frederf and Miguez thanks for the awesome explanations. Though I already know how to utilize the PVI-800 you guys reinforced what I already knew and provided an excellent explanation to the community!

Yes great job! Rep inbound!