If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
First off, you're getting a lot of bad info here. There is NO
requirement for redundancy for IFR under Part 91. It's perfectly legal (though not too smart) to have all three required gyros powered from the same non-redundant source. In fact, it used to be pretty common to have airplanes that were IFR certified equipped with all three gyros driven by vacuum. The TriPacers with the advanced panel actually came that way from the factory. Don't forget that there are operational FARs like you quote and airworthiness FARs. For example, if the instruments are converted to all electric, then look at 23.1331 Instruments Using A Power Source - For each instrument that uses a power source, the following apply: (c) There must be at least two independent sources of power ... and a manual or automatic means to select each power source. The original poster's airplane is certificated under CAR3 and not FAR23 and so 21.101 could be applicable if this modification was performed by STC. |
#12
|
|||
|
|||
"Bill" wrote
Don't forget that there are operational FARs like you quote and airworthiness FARs. For example, if the instruments are converted to all electric, then look at 23.1331 Instruments Using A Power Source - For each instrument that uses a power source, the following apply: (c) There must be at least two independent sources of power ... and a manual or automatic means to select each power source. The original poster's airplane is certificated under CAR3 and not FAR23 and so 21.101 could be applicable if this modification was performed by STC. However, no STC is required to perform the modification, so 21.101 is inapplicable. 23.1331 is also inapplicable, and you will note that most airplanes currently in service do not meet it. In other words, none of this means anything. Michael |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Homebuilt Aircraft Frequently Asked Questions List (FAQ) | Ron Wanttaja | Home Built | 40 | October 3rd 08 03:13 PM |
Homebuilt Aircraft Frequently Asked Questions List (FAQ) | Ron Wanttaja | Home Built | 0 | September 2nd 04 05:15 AM |
Homebuilt Aircraft Frequently Asked Questions (FAQ) | Ron Wanttaja | Home Built | 0 | June 2nd 04 07:17 AM |
Homebuilt Aircraft Frequently Asked Questions (FAQ) | Ron Wanttaja | Home Built | 0 | May 1st 04 07:29 PM |
Newbie Question - Vacuum vs Electric | Bill Denton | Aerobatics | 1 | April 15th 04 11:30 PM |