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For questions about identifying a feature or design on an aircraft or airport.
2
votes
Accepted
What "jet engine" is featured in this ad that Simone Giertz made for a phone?
The engine seems quite obviously to be a Boeing T50 Turboshaft Engine variant, T50-BO-8A is a very, very close match, you can see pictures and info here:
National Air and Space Museum: Boeing T50-BO-8 …
11
votes
What is this gigantic dish at Ben Gurion airport?
It's Architecture [sic], and it's for your eyes to behold:
Safdie architects explain further.
11
votes
What are these SR-71 "Ports" for?
According to the SR-71 handbook section 6-11, these are fuel dump vents (outer) and fuel tank pressure relief vent (center).
Since this is copyrighted material, I will not include a screenshot of the …
1
vote
1
answer
242
views
PZL M28 Skytruck exhaust alignment
Watching a short documentary on PZL M28 Skytruck, I noticed it has quite oddly aligned exhaust pipes.
They point almost directly downwards, with only slight aft tilt:
Picture credit: Łukasz Golowanow …
8
votes
Accepted
What is the purpose of these movable panels on the MiG-35?
The aerodynamic devices in question here were already present on MiG-29KUB which is a parent version of MiG-35: Wikipedia: MiG-35
The devices are in fact, as some have suggested, Krueger flaps, as Ru …
29
votes
Accepted
What are those gray spots on the wing?
They are rivet ends. The paint seems to have a hard time sticking to those, not an uncommon sight on older planes.
Thanks to Darrel Hoffman's comment, I did some digging:
The phenomenon is known as ri …
1
vote
How does this instrument in a DA20 measure flight time?
That would in all likelyhood be a Hobbs meter. Hobbs meters are used to count operating hours, and there are actually quite many different ways it can be activated:
master switch is on (plane is "ele …
37
votes
Why do most ARFF trucks tend to be so angular?
While the upper portion design enables better visibility, the lower part design is also purposeful:
ARFF needs to be at least somewhat offroadable, as the plane in distress may not have stopped on pav …
18
votes
What are those ball-shaped things on some helicopter blades?
The devices are pendulum (or pendular) absorbers:
Vibration suppression of helicopter blades by pendulum absorbers - Imao Nagasaka.
The pendulum absorbers are used for suppressing the vibrations in he …
12
votes
Accepted
What is the round tube mounted on the roof just behind the windshield of a PC-6?
The vertical tube on top of the cabin is the fuel system vent mast:
Pictures are taken from an online copy of Royal Australian Air Force Pilatus Porter Flight Manual, Australian Air Publication 721 …
18
votes
Accepted
What are these paint patches on this 787-8?
They are fixed spots where the surface paint has peeled off. Both Boeing and Airbus have been having this issue with their newer models.
Manufacturers are stressing that this is simply a cosmetic nuis …
28
votes
Accepted
What are those half-vanes in the engine inlet of a 707-328?
You have a very interesting find there! It is in fact not an engine from a B707, but a Kuznetsov NK-8 from Russia.
It was used in Ilyushin Il-62 and Tupolev Tu-154 aircraft.
As for the intermediate va …
11
votes
Accepted
Does the B-1B Lancer have controllable canards?
From Wikipedia:
The Rockwell B-1 Lancer has small canard vanes or fins on either side of the forward fuselage that form part of an active damping system that reduces aerodynamic buffeting during h …