USAFsparkchaser Posted July 31, 2019 Share Posted July 31, 2019 https://www.thedrive.com/the-war-zone/29218/these-images-of-an-f-22-raptors-crumbling-radar-absorbent-skin-are-fascinating it’s hard enough to figure the paint out. Now we have this weathering to try and replicate. This stuff on the nose panel looks freakish. Quote Link to post Share on other sites
Mstor Posted July 31, 2019 Share Posted July 31, 2019 That is just totally weird. Looks like the area became hard and brittle and just shattered. Is that a radio transparent area over some sensor? You can see other areas that are cracking like they too are brittle. Man, that's got to be a nightmare to maintain. I wouldn't even want to try to figure out how to replicate that on a model. Quote Link to post Share on other sites
11bee Posted July 31, 2019 Share Posted July 31, 2019 (edited) From the article linked above - how long as the Raptor had that largish green O2 tank in the aft cockpit? https://the-drive-3.imgix.net/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fthe-drive-cms-content-staging%2Fmessage-editor%2F1564523242667-kkkk.jpg?auto=compress%2Cformat&ixlib=js-1.2.1&s=60825dbfb536c8831de95921829a7438 Edited July 31, 2019 by 11bee Quote Link to post Share on other sites
foxmulder_ms Posted July 31, 2019 Share Posted July 31, 2019 1 hour ago, Mstor said: That is just totally weird. Looks like the area became hard and brittle and just shattered. Is that a radio transparent area over some sensor? You can see other areas that are cracking like they too are brittle. Man, that's got to be a nightmare to maintain. I wouldn't even want to try to figure out how to replicate that on a model. Enamel over acrylic before the bottom layer drying. It will exactly look like that 😄 😄 😄 😄 😄 Quote Link to post Share on other sites
boom175 Posted July 31, 2019 Share Posted July 31, 2019 40 minutes ago, 11bee said: From the article linked above - how long as the Raptor had that largish green O2 tank in the aft cockpit? https://the-drive-3.imgix.net/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fthe-drive-cms-content-staging%2Fmessage-editor%2F1564523242667-kkkk.jpg?auto=compress%2Cformat&ixlib=js-1.2.1&s=60825dbfb536c8831de95921829a7438 Wonder if that has anything to do with the OBOGS problem they had on that jet? Quote Link to post Share on other sites
11bee Posted July 31, 2019 Share Posted July 31, 2019 Just now, boom175 said: Wonder if that has anything to do with the OBOGS problem they had on that jet? Yeah, I was thinking the same thing. I don't think any other jet has anything like that. Given how high these things fly, you'd probably need a larger than normal O2 cylinder to allow the pilot to descend to a safe altitude if the OBOGS failed. Maybe it's always been present, I'm not an F-22 expert. Just don't recall seeing it before. Quote Link to post Share on other sites
CF104 Posted July 31, 2019 Share Posted July 31, 2019 13 minutes ago, 11bee said: Yeah, I was thinking the same thing. I don't think any other jet has anything like that. Given how high these things fly, you'd probably need a larger than normal O2 cylinder to allow the pilot to descend to a safe altitude if the OBOGS failed. Maybe it's always been present, I'm not an F-22 expert. Just don't recall seeing it before. This is part of the OBOGS fix. It's called the Automatic Backup Oxygen System (ABOS). Looks like 2 high pressure oxygen bottles were installed behind the ejection seat in the 2012/13 time frame. These look like fairly high capacity cylinders so they probably operate more as a backup reserve to the OBOGS and there's more than likely enough oxygen to get through a mission. Cheers, John Quote Link to post Share on other sites
11bee Posted July 31, 2019 Share Posted July 31, 2019 33 minutes ago, CF104 said: This is part of the OBOGS fix. It's called the Automatic Backup Oxygen System (ABOS). Looks like 2 high pressure oxygen bottles were installed behind the ejection seat in the 2012/13 time frame. These look like fairly high capacity cylinders so they probably operate more as a backup reserve to the OBOGS and there's more than likely enough oxygen to get through a mission. Cheers, John Ahh..... Thanks for the info CF104! Looks like it will have to be added for anyone modeling a current-spec Raptor. Quote Link to post Share on other sites
Murph Posted July 31, 2019 Share Posted July 31, 2019 (edited) On 7/31/2019 at 2:23 PM, boom175 said: Wonder if that has anything to do with the OBOGS problem they had on that jet? The ABOS was more a result of the Alaska accident, rather than the OBOGS issues. The F-35 has a similar back up system. Regards, Murph Edited August 4, 2019 by Murph Quote Link to post Share on other sites
dylan Posted August 1, 2019 Share Posted August 1, 2019 I'm blown away by all those Torx head screws. they look really shallow and easy to strip Quote Link to post Share on other sites
sideshow Posted August 2, 2019 Share Posted August 2, 2019 (edited) The F-22 problem was the vest. I know a few of the demo pilots and they roll their eyes when talking about ripping apart the whole system to fix this. Good article (if you're a nerd like me) here.... https://news.usni.org/2017/06/28/report-congress-breath-military-aircraft-oxygen-issues Edited August 2, 2019 by sideshow Quote Link to post Share on other sites
Janissary Posted August 2, 2019 Share Posted August 2, 2019 To replicate that wear, i’d look into a crackle medium (like Vallejo’s) carefully applied according to the pattern. Quote Link to post Share on other sites
stalal Posted August 2, 2019 Share Posted August 2, 2019 I have used crackle medium. It gives a great effect. But it also lifts up all the layers beneath the top layer revealing the plastic surface. So I dont know what is best way yet to use it. However, that surface seem to be broken and cracked. Crackle provides a good effect on the paint layer but not sure how to do this cracked surface effect. 🙂 Quote Link to post Share on other sites
11bee Posted August 4, 2019 Share Posted August 4, 2019 Forget about that degraded finish in front of the cockpit, just try to replicate the overall paint job: I've yet to see a Raptor model that comes close to looking like the real thing, including replicating that coating on the canopy. There are times when this thing looks almost alien-like. Quote Link to post Share on other sites
joscasle Posted August 6, 2019 Share Posted August 6, 2019 (edited) I'm trying, I don't know how much success I will have! Exhaust just put on, they're not glued Edited August 6, 2019 by joscasle Quote Link to post Share on other sites
Mstor Posted August 6, 2019 Share Posted August 6, 2019 Your canopy tinting looks very good. What did you use? Quote Link to post Share on other sites
joscasle Posted August 6, 2019 Share Posted August 6, 2019 Hi. Gaianotes clear orange Quote Link to post Share on other sites
boom175 Posted August 6, 2019 Share Posted August 6, 2019 I think the "stealth" coating is chameleon skin! Quote Link to post Share on other sites
Mstor Posted August 6, 2019 Share Posted August 6, 2019 15 hours ago, joscasle said: Hi. Gaianotes clear orange Thanks! Quote Link to post Share on other sites
habu2 Posted August 6, 2019 Share Posted August 6, 2019 8 hours ago, boom175 said: I think the "stealth" coating is chameleon skin! If so it must be molting.... Quote Link to post Share on other sites
jester292 Posted August 7, 2019 Share Posted August 7, 2019 22 hours ago, joscasle said: I'm trying, I don't know how much success I will have! Exhaust just put on, they're not glued Looking great! Wow! Quote Link to post Share on other sites
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