Tag Archives: f-22

Evening Raptor Demo at Last

The “at last” in this title is not that I haven’t seen an F-22 demo in the evening. I saw one once at Chino and it was very cool. This is more about the fact that the Raptor demos in recent years have not strayed far west very often. They did a demo in Australia but only had one demo west of the Mississippi for one season. However, Canada did attract the team, and Abbotsford provided a chance to see them for me.

The pilot for the demo for the last two years is a guy that was a regular attendee of air shows in the Midwest when I lived there. I know some of his friends, but he was quite young then and I can’t claim to know him. Even so, it is rather cool to see him have made it to his chosen airframe of the F-22 and then to become the demo pilot. Only near the end of his second year did I finally see his routine and it was a good show. I know he has used flares at a number of events, but warm dry weather probably has meant that the fire risk precluded that. Even so, the evening light made for a great show.

Nicely done, Sam. Excellent performance. Hope you have enjoyed it for the last two years.

Forgotten F-22 Pass

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There are a lot of air shows that I have been to over the years. You think you remember them well and then something shows up in your archive of images that you have completely forgotten about. I am a member of a Facebook group that has a different challenge each week and, when I get the next challenge, I work through my catalog to see what I have that might contribute. It is an interesting exercise in finding stuff that I had forgotten about.

This wasn’t one of those challenges but I was looking for something else when I came across this shot of an F-22 pulling vapor and shockwaves as it did a fast pass at the Rockford Air Show. Rockford was a great show that I used to go to when I lived in Chicago. They always got great static displays and performers for the flying display. The only limitation was that you were pretty much shooting in to the sun.

This F-22 made a fast pass and was clearly pulling a lot of vapor as it went. I don’t know why I forgot about this sequence but apparently I did. I had a go at processing them again to see what I could make of the shots this time compared to my technique in 2009. Not an easy shot to make work but the plane is dramatic enough to make it worthwhile I think.

Raptor Turning Overhead

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The F-22 Raptor that displayed at Seafair took off from Boeing Field away from us. It kept things nice and low building up speed before pulling hard to the vertical. Impressive but a long way away from us. Unfortunately, the pilot then elected to land on the opposite runway. All of this was away from us. The only upside was that, when he ran in to break, he ended up breaking right over the top of us. A brief window to get some shots and rather close in for the longer lens I was using but, all things considered, it was a good consolation prize.

Has the Catfish Escaped Me? NO!

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The first Boeing 757 built was kept by Boeing as a test aircraft and never went to an airline. When Boeing became a partner in the F-22 Raptor program, a new use was found for the aircraft. It was fitted out as a flying testbed for the avionics suite. A test crew could ride in the cabin and they could try out a number of different configurations of software changing things as they go without having to have the software flight qualified.

To make the whole ensemble work appropriately, the aircraft was fitted with F-22 sensors. This included a radome on the aircraft nose with the F-22’s radar. In addition, because a number of sensors were embedded in the wings, a wing structure was added about the cockpit. This unusual configuration resulted in the aircraft gaining the nickname “Catfish”. It flew a lot during the development program but I only ever saw it on the ground at Boeing Field and then it was partially obscured. I did also look down on it from an airliner approaching SeaTac.

I knew it didn’t fly often but I hoped that, in moving to the area, I would finally get to see it airborne. Then I discovered that it had flown to St Louis. The rumor was that it had been retired. Indeed, on a flight across the country involving a plane change in St Louis, I did see it parked up in an open-ended hangar. I figured that might be as close as I got. Then I got a notification that it was heading west again. Better yet, it wasn’t going direct to Boeing Field but to Everett first. It is a short drive from the office to Everett and the flight plan meant it was coming in during lunch.

The harsh lunchtime light and the prospect of heat haze notwithstanding, I figured this was too good a chance to miss. It showed up pretty much when expected so I was able to get some shots of it coming down the approach and across the threshold. The heat haze was really bad as it was over the runway but actually slightly less of an issue further out. I don’t care. I finally got to see it fly and that is what I was after. It headed back to St Louis from Boeing Field the following day. I have no idea when it left Everett for Boeing Field though. If it comes back again and I can see it, that will be a bonus.

Some Raptors Because, Well Why Not?

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The 1^st FW at Langley AFB was the source of the Raptor contribution to Red Flag this year. They weren’t the only F-22s I got to see though. Some of the based aircraft were busy before and after the Red Flag missions so there was plenty of Raptor action. Not much of a story to tell on these. Just a chance to gratuitously show a variety of photos of F-22s because, from the right angle, they look pretty cool!

: A USAF Lockheed Martin F-22A Raptor on final approach to Nellis AFB NV.

: A USAF Lockheed Martin F-22A Raptor turns on to final approach at Nellis AFB NV.

Some Spare Oxygen – Just in Case

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There have been quite a few Raptor posts recently. I guess seeing a bunch of them at Nellis triggered a few things of interest to me. One was as I looked at the jets after they had passed me by on their approach. A few years ago, the F-22 fleet was grounded by some issues with the oxygen system. Like most modern jets, the F-22 doesn’t carry bottled oxygen but instead generates it onboard for the pilot. There were some issues with the oxygen being generated that resulted in pilots feeling unwell and, potentially, losing awareness of what they were doing. As you can image, this is not a good thing in a fast jet and was believed to have contributed to loss of an aircraft with its pilot!

A backup oxygen system was implemented to provide the pilots with something in the event that they felt symptoms of the problem recurring. Not so much of a solution as a fallback plan. As I looked at the jets, I saw green tanks behind the ejection seat. These are pretty big tanks and seem rather unsubtle in the way that something that has been added after the fact often is. I wonder whether these are the spare tanks for the pilots to breathe should the onboard generation system cease to be reliable.

Did Someone Patch This Raptor in a Hurry?

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The F-22 Raptor has a complex coating system on the skin of the airframe that is part of the overall approach to stealth. Normally, they look pretty well finished in order to preserve the performance of the system (although I have spotted a few jets with the green primer showing through worn finishes). However, one or two of the jets that were at Red Flag had what almost looked like a panel missing from the spine of the jet. Looking a bit closer, I think the panel had been replaced and the finishing of the surfaces around the work remained to be done. It did look a bit of a mess though. Checking some of the other jets, they also show this panel in a slightly different color. Perhaps they have all been undergoing a modification program in this area?

Relaxed Raptor Pilot

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All cool fighter pilots should look like they are not operating a complex and expensive jet. Instead, they should look like they are out cruising in a convertible with their arm resting on the door just taking in the scenery. This guy obviously understands what is required and provides the casual look of a person enjoying their day!

Raptor Vortices

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A bit more from the Raptor display today. As the jet flew away from the crowd, it pulled in to the vertical. From a view directly astern, we got a brief view of the vortices forming over the forebody. The jet was quite a way off so these shots are cropped quite a bit. I love the way the vortex sits away from the body. Chino was a pretty dry environment so not a lot of vapor to pull from the air but it still showed up nicely.

Interesting Raptor Control Inputs

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It might be a long time ago that I did anything closely related to the engineering of fighters but there is still a part of me that is a stability and control type of guy. Watching the control inputs and responses of planes is cool as far as I am concerned. With the advent of fly by wire designs, there was considerable scope to play around with the use of the control surfaces to achieve different aims. With no direct linkages to the stick, the pilot can be totally unaware of the choices the system is making for control combinations.

The engineers may have chosen to program the trailing edges to have different deflections inboard and outboard to offload the outer portion of the wing for example. The F-22 makes use of a variety of interesting control inputs. For example, it doesn’t have a traditional speed brake. I assume this was removed for stealth reasons. Instead, the control surfaces move counter to each other. You may have inboard flaps going down and outboard flaps going up. The moments cancel out but all increase drag incrementally so the effect is like having a speed brake deployed.

Since the aircraft is also unstable, you may have tail deflections that seem at odds with the maneuver being flown. During the Chino show, the usual routine was flown (usual for an F-22 but not many other jets) and, as I look through a bunch of the shots, I see some quite unusual control inputs. If you are in to such things, these may appeal to you. Gary, are you reading this?