Unanswered Questions
30 questions with no upvoted or accepted answers
4
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answers
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What aircraft manufacturer uses an HSI with DME, VOR, and G/S in one Instrument?
Which aircraft manufacturer uses a horizontal situation indicator (HSI) with DME, Glide Slope, VOR, and ADF in one Instrument?
CommunityBot
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4
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What is the minimum price for a full Glass cockpit for the size of 6 passengers aircraft?
I am working on my final project at school and currently looking for the information about avionics system. We design a concept amphibious aircraft with the info as listed below:
2 pilots in the ...
- 1
3
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0
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238
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How Do You Actually Test Complex Embedded Firmware for DO-178C?
Need Advice: How Do You Actually Test Complex Embedded Firmware for DO-178C?
🔍 Calling Embedded Firmware Developers in Safety-Critical Systems (DO-178C)
In the context of embedded firmware ...
- 31
3
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85
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Are there standards that determine the display of results for built-in tests in avionics?
I have seen GO/NGO on some pages to show the pilot the result of a built-in test. However, in some documents I have also seen TEST OK/TEST FAIL, or perhaps just PASS/FAIL. Is there some ARINC or SAE ...
- 31
3
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0
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251
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Why does stall warning system require 4 minutes of AC power on the 737NG?
Is it related to the Stall Management Yaw Damper (SMYD) computers starting? But the number 1 stall test is working with no need for waiting.
Please provide sources, if available.
- 60.4k
3
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2k
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Which Aircraft Utilise Fly-By-Light Controls?
Although I can find reference to the Eurocopter EC135 being a test bed for fly-by-light, I am not sure if it has entered production with the system [1]. The only confirmed aircraft I can find is the ...
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3
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0
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794
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Is the Morse code identifier required continuously when using a VHF NAVAID for navigation?
I am thinking of getting an MGL N16 VHF Nav radio with the MGL Vega V16 Control head. It has an interesting mode of operation (referred to as SCAN Mode) where the single receiver in the N16 rapidly ...
- 6,313
3
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79
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Is it possible to display WAAS enabled GPS Flightlines on older mechanical flight directors such as S-tec?
We are in the research process of a panel upgrade in a M5 Maule.
The ac is used for transportation and aerial survey to support ground survey. We frequently fly tight, low alt grids. Lateral and ...
- 16.6k
3
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0
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326
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Why does the SSM decoding vary between different A429 label types
For A429 there are different label types, for example: BCD, BNR, Discrete...
These types have their corresponding SSM (Sign/Status Matrix) that is unique, for example an SSM of "00" represents a ...
- 293
3
votes
0
answers
524
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What causes this error on the Collins 60A ADF system?
We've got a BAE Jetstream 32 equipped with a dual Collins 60A ADF system, and the co-pilot's side control head is:
displaying "FLAG 10" when we press the TEST button; We looked up the error code, but ...
- 85.7k
3
votes
1
answer
435
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HSI KG 525 PNI non slaved or only slaved?
I'm in Germany and currently on a project about the avionics of an older airplane (PA28). Here is a link to a former reddit question.
My Prof. and me want to update the Avionics now - he asked me to ...
CommunityBot
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2
votes
0
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129
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Is there historical evidence whether or not FAR §21.9 applies to owner-manufactured avionics?
Looking at an explanation of §21.9 (formerly §21.303(b)2), it seems very straightforward for an owner to produce a part for an ...
- 6,215
2
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0
answers
347
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Which connector and cables are recommended for CAN?
Which mechanical connector(s) and cable(s) is/are recommended to arrange a Controller Area Network (CAN) bus communication or its aerospace counterpart ARINC 826 in the aerospace industry (civil & ...
- 181
2
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0
answers
240
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What is the communication protocol for the side-stick in the F-16 or F/A-18?
The side-stick in the F-16 or F/A-18 communicates with the flight control computer to transmit the pilot inputs. This transmission uses a protocol. Which protocol?
- 1,182
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214
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Data protocol in helicopter's ARINC 717
I am presently doing a project where in I want to transfer certain aircraft parameters (helicopter) to a ground station where I would like to monitor them (establish a data link). I have thought of ...
