The basic functionality of the most avionics units are rather similar between fixed and rotary. But there are more and more systems are becoming very aircraft dependent as part of the integrated electronics trend. In general a large number of ata 23, 31, and 34 parts are not too different, but if you get into systems like eicas, efis, ifis, fms, or anything in ata 22, 27, 73, 76, 77, it will be a different story. What do you refer as ENVIRONMENTAL? I don’t think it differentiates between fixed a
j*d
8 楼
Some category has different testing standard for fixed wing and helicopter, such as vibration.
becoming different, ata between
【在 d*********e 的大作中提到】 : The basic functionality of the most avionics units are rather similar : between fixed and rotary. But there are more and more systems are becoming : very aircraft dependent as part of the integrated electronics trend. : In general a large number of ata 23, 31, and 34 parts are not too different, : but if you get into systems like eicas, efis, ifis, fms, or anything in ata : 22, 27, 73, 76, 77, it will be a different story. : What do you refer as ENVIRONMENTAL? I don’t think it differentiates between : fixed a
d*e
9 楼
for LRU? that is something I didn't know about, want to give me more insight on that? thx
j*d
10 楼
When you make findings of compliance, you must consider the component's working environment. In the helicopter case, the vibration is one factor which is different from fixed wing aircraft. Similar examples are turbo jets and turbine aircraft. Another example is altitude testing standard. Some LRU's are tested below 30000ft, but the aircraft would fly at 50000ft and the LRU would be mounted in unpressurized location. Then the subject LRU is not qualified for this aircraft. Selecting qualified LRU's is only part of the avionics systems integration.
insight
【在 d*********e 的大作中提到】 : for LRU? that is something I didn't know about, want to give me more insight : on that? : thx
d*e
11 楼
but the requirements always state so and so, just that how you comply to it would be different, I still don't see how the vibration requirement would be different
j*d
12 楼
You must review the environmental specifications of the LRU, sometimes you have to decode the vendor's environmental table against DO-160. To understand what I mentioned about vibration, you have to study the section 8.2.2 of DO-160. If you don't have the working knowledge, it's difficult to explain in a few sentences here.
it would be
【在 d*********e 的大作中提到】 : but the requirements always state so and so, just that how you comply to it : would be different, I still don't see how the vibration requirement would be : different
d*e
13 楼
I thought we were talking about avionics integration, which wouldn't get into too much technical details sections 8.7 and on specify. Maybe we are looking at different levels of integration. To me that is all done at the supplier level. Anyway ...