Timeline for Why is the forward fairing of the pylon very shiny and metallic in appearance in A350?
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
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| Jan 23, 2023 at 17:30 | comment | added | Pete P. | The patent does NOT show the shiny metal plate on the pylon being heated. Fig 2 is a cross-section of the inlet cowl at the 12 o'clock position. I believe the drawing is being mistaken for a drawing of the forward end of the pylon. Accordingly, Item 16 is the outer wall of the inlet cowl, not the shiny plate of interest. | |
| Nov 17, 2022 at 17:18 | comment | added | Juan Jimenez | Patents can be licensed so who owns the patent is irrelevant. The reference in the patent is anything that mentions Figure 2 or item 16. | |
| Nov 16, 2022 at 19:24 | comment | added | user22445 | Although the A350 uses RR engines and your reference to the engine anti-ice patent is for GE engines could you extract that portion of the patent that applies to the plate in question and add it to your answer? Thanks | |
| Nov 16, 2022 at 16:31 | comment | added | Bianfable | @JuanJimenez But the A350 is powered by RR Trent XWB, not GE engines. I haven't seen this part unpainted on other RR Trent engines, or any GE engines for that matter. | |
| Nov 16, 2022 at 15:02 | comment | added | Juan Jimenez | My use of terminology was unclear. There are no electric heaters there, it's all heated with hot air from a compressor port. I believe this patent from GE: patents.google.com/patent/US5088277A/en explains how the anti-icing system not only heats the ring around the cowling but also the plate in question. | |
| Nov 16, 2022 at 14:59 | history | edited | Juan Jimenez | CC BY-SA 4.0 |
added 38 characters in body
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| Nov 16, 2022 at 13:33 | comment | added | John K | You won't get ice accretion on areas like that unless it's runback ice and cowls are usually evaporative heating to prevent that. The A350 anti-ice system description doesn't mention a heated panel. | |
| Nov 16, 2022 at 5:48 | comment | added | karthikeyan | Can you update with relevant sources @JuanJimenez? I tried to look up and found what @757toga says is correct. I cannot find any pylon heaters but only nacelle heaters. smartcockpit.com/docs/… | |
| Nov 16, 2022 at 2:38 | comment | added | user22445 | According to the ice and rain protection scheme for the A350-900, with respect to the engine and wing protection, the engine nacelles' air intake (lips of the nacelles) and slats 3, 4 and 5 (outboard of the engines) can be heated (for anti-ice) by bleed air. | |
| Nov 16, 2022 at 1:41 | comment | added | Juan Jimenez | @757toga No, I am saying that it has a heater for anti-ice. There appears to be a NACA scoop just forward of that in the nacelle design for the -1000. | |
| Nov 16, 2022 at 0:49 | comment | added | user22445 | Are you saying that the small square dark area pointed out by the OP functions as an engine nacelle anti-ice heater? | |
| Nov 16, 2022 at 0:25 | history | answered | Juan Jimenez | CC BY-SA 4.0 |