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131
8.
Disabling Pages ( Pitman Air disables Pages 0, 4, 6, 7, 9, 11, 12, 13, 14, & 15 )
Up to 10 display pages may be disabled so that they do not appear when pressing the "Next" and
"Previous" buttons. Disabling pages can make it easier to get to the pages that you find the most
useful. You may find it useful to disable labeled pages which include information also shown on your
programmable combination pages. You may also find it useful to disable the fuel flow page if you do
not have the fuel flow option, and/or the altimeter/VSI - Airspeed - Water Temperature page if you do
not use these features. Note that the alerting function will not be disabled from using this pages, so
that alarms will be annunciated using the appropriate labeled page.
It is recommended that pages are disabled after you have gained some operational experience with the
instrument, and after you have settled on the configuration of your user-programmable pages.
To disable a page, determine its page number from figures 1a and 1b. Enter this page number into one
of the 10 "Disable Page #" entries which appear immediately after the user-definable page data.
Note: Ten "Disable Pg #" pages are provided. Each of these pages allow one entry. The entry may be
either "Off" (indicating this particular "Disable Pg #" page is not disabling any pages), or it may be a
number between 0 and 15 corresponding to the page being disabled. The ten "Disable Pg #" pages look
identical, with the possible exception of the entry on the page. This gives the appearance that the page
is not changing as you page through each of the 10 pages, but in fact there are ten of these pages.
9.
Engine Analysis Functions
The engine analysis function includes functions to track your EGTs to detect subtle changes in your
engine performance, and functions to help you lean your engine.
9.1
The EGT Tracking Function
Imagine you had a way of watching your engine for the slightest change in its operation for every second of the
cruising portion of your flight. Imagine this function was sensitive enough to detect a single spark plug just
beginning to foul, or a valve intermittently sticking, or a minute intake manifold leak, or a host of any other
problems which could not possibly be detected by the human senses. Imagine the confidence you will feel as
you set out over forests, mountains, or a body of water, knowing that your engine has been subject to this
scrutiny. This is the real power of the EGT tracking function. Please read on….
The tracking function is normally activated during the cruise portion of the flight. This is because the exhaust
gas temperatures will vary with the mixture, power setting, and load on the engine. During the cruise portion of
the flight these variables are fixed, making changes in exhaust gas temperature due to engine problems easier to
detect. This is especially true during flight in smooth air, where there is no turbulence to cause fluctuations in
engine power
To activate this function, call up the “SET LEAN POINT?” prompt by momentarily pressing the center and
right buttons. Press the button under the “YES” selection to activate the function. This will store the current
exhaust gas temperatures internally, and calculate the change from these temperatures for each cylinder. You
will now see a graphical representation of the change in exhaust gas temperature on the EGT Cruise graph, and a
digital representation of the change on the page identified with CZ (cruise) identifier. The exhaust gas
temperatures stored internally for this function may be updated at any time during the flight by repeating this
sequence. (This can be necessary if your cruise conditions change, such as power settings, mixture, etc.). Note
that it is not necessary to lean the engine to activate this function.
Separate limits may be set for the increase and decrease in exhaust gas to alert you when any cylinder varies by
more than you expect. These are the EGT-INC and EGT-DEC entries on the set pages. These limits may be tight
(a few 10’s of degrees) to alert you to very subtle changes, possibly at the expense of false alarm in turbulence,
or loose ( 50 degrees or more). Experience will dictate the best settings for your engine/airplane combination.
Summary of Contents for 912 Dragonfly
Page 3: ...Page 2 ...
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Page 25: ...Page 24 Drawing 1 ...
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Page 35: ...Page 34 Drawing 6 ...
Page 37: ...Page 36 Note for Hydraulic Brakes see Appendix B Drawing 7 ...
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Page 47: ...Page 46 Drawings 12A 12B ...
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Page 79: ...Page 78 Wiring1 jpg Drawing 28a ...
Page 80: ...Page 79 Wiring2 jpg Drawing 28b ...
Page 81: ...Page 80 elecLights jpg Drawing 28c ...
Page 83: ...Page 82 Drawing 29 ...
Page 85: ...Page 84 Drawing 30 ...
Page 92: ...Page 91 Appendix B Brakes Manual for BX1320 BX1000 Appendix B Page 1 ...
Page 93: ...Page 92 Appendix B Page 2 ...
Page 94: ...Page 93 Appendix B Page 3 ...
Page 96: ...Page 95 Appendix B Page 5 ...
Page 97: ...Page 96 Appendix B Page 6 ...
Page 98: ...Page 97 Appendix B Page 7 ...
Page 104: ...Page 103 Figure 1a Description of Display Pages ...
Page 105: ...Page 104 Figure 1b Description of Display Pages ...
Page 138: ...Page 137 Appendix C EIS 4000 912 914 ...
Page 139: ...Page 138 Appendix C EIS 4000 912 914 ...
Page 140: ...Page 139 Appendix C EIS 4000 912 914 ...
Page 141: ...Page 140 Appendix C EIS 4000 912 914 End Appendix C ...
Page 155: ...Page 154 Appendix E2 Powerfin Prop Page 2 ...
Page 156: ...Page 155 Appendix E2 Powerfin Prop Page 3 ...
Page 157: ...Page 156 Appendix E2 Powerfin Prop Page 4 ...
Page 158: ...Page 157 Appendix E2 Powerfin Prop Page 5 ...
Page 159: ...Page 158 Appendix E2 Powerfin Prop Page 6 ...
Page 160: ...Page 159 Appendix E2 Powerfin Prop Page 7 ...
Page 161: ...Page 160 Appendix E2 Powerfin Prop Page 8 ...
Page 162: ...Page 161 Appendix E2 Powerfin Prop Page 9 ...
Page 163: ...Page 162 Appendix E2 Powerfin Prop Page 10 ...
Page 164: ...Page 163 Appendix E2 Powerfin Prop Page 11 End of Appendix E2 ...
Page 187: ...Page 186 By Memphis Soaring FIGURE 3 Common Signals ...