Tag Archives: testbed

Century Circle

I got to the gate for Antelope Valley Air Show 2022 early in the morning. We were lined up outside the security gate for Edwards AFB waiting for the time things opened up. I was on the phone so was happy to sit in the car for a while chatting. When I finished my call, I could see that I was a short distance away from Century Circle – a display of various aircraft associated with Edwards. Nothing was moving so I figured I would walk up and have a look around. I had got most of the way there when it looked like cars were starting to move. I rapidly retraced my steps to the car and we drove on to the base.

At the end of the show, I was coming back out the same gate so decided to see if it was possible to pull in and see the aircraft on display. Indeed, there were no barriers and Iw as able to park up and have a walk around the various exhibits. The name, Century Circle, is a reference to how many of the jets are Century Series fighters. There is going to be a museum for the Air Force flight test center and the base for the building was not far from the aircraft. I will be interesting to see what the museum is like when it is finished and how many of the other interesting aircraft that are currently on base will be included.

Of the jets on display, my favorites are the F-106, the F-105 and the F-104. Nicely sequential now I think about it. There is an F-102 which I have never been so keen on and this one is a two seater which takes a place that didn’t look that great and makes it worse. Still, vintage jets on display is a good thing and I shouldn’t be critical of what is on offer.

The one plane that is a bit of an oddball is the McDonnell Douglas YC-15. This was a program the USAF ran for a new jet transport to replace the C-130. Boeing and McDonnell Douglas both built demonstrators for the program but neither was taken to production. However, there are a lot of features from the YC-15 that will be familiar to observers of the C-17. Having a transport jet alongside the sleek fighters is a little unusual but it is a rare beast and worthy of preservation. Thankfully, the dry desert atmosphere is a place that will allow the airframe to survive for many years.

Scaled Composites 401

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The day after I went to the Edwards show, I was hanging around the area and headed up to Mojave to see whether Stratolaunch was going to move. It didn’t, which was disappointing but the time up there was not wasted. I got to shoot some stuff around the airport that I hadn’t previously and I went to the north end to look down the runway in case anything was moving. I saw that a Western Global 747 was coming in and decided to head to the south end to get it arriving. As I left, an L39 took off to the north. I should have paid more attention to it.

I short while later – once I was well away, it was followed by a more interesting plane that it was acting as chase for. A Scaled Composite 401 known by a variety of names including Son of Ares. To miss that climbing out past me was bad. It got worse when I realized the 747 had approached from the north so I missed it anyway. I wasn’t going to make the same mistake when the 401 returned.

I did have to wait for quite a while. They were undertaking flights at altitude and running racetrack patterns. I could get the occasional distant shot as they went overhead. Eventually the L39 returned and I figured it wound’s be too long before the 401 was back. I had picked a spot on Google Maps that looked promising for the approach. As I waited, I realized some other photographers were on the other side of the road and closer to the centerline. I wondered about moving but also didn’t want to miss it while I did so. I stayed where I was. A bit distant but still worth it for an unusual type. It has been seen at Boeing Field but not by me!

P1A Tucked In The Back

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The Boscombe collection has a couple of interesting testbed airframes. The Avro 707 was in a previous post but another fine jet is the English Electric P1A. The precursor to what was to become the Lightning, the P1A is very similar in some respects but quite different in others. The nose is a pitot inlet without the shock cone that the Lightning adopted to house its radar. The rest of the front fuselage has quite a different shape while it also feels lower to the ground than the Lightning was. It is nice that a Lightning front fuselage is displayed alongside it for comparison.

Avro 707

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The development of the Vulcan required a lot of concept testing before the full size jets were built. Avro built a series of smaller scale delta winged jets to work out some of the issues under the name Avro 707. One of these lives at Old Sarum in the Boscombe Down Aviation Collection. It is painted a bright orange color and, while tucked in a dark hangar, it still looks striking. It would be great to get some elevation to show off the delta planform of the jet but still happy to have managed to see it. I was rather close to it so needed to shoot a variety of shots to stitch together afterwards which only worked so well.

Honeywell Testbed and a Very Rainy Day

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Over six months ago, the Honeywell Boeing 757 testbed ferried from Phoenix – its home base – to Paine Field for maintenance work at ATS. I don’t know whether there were mods to be done too but, with a jet like this, that wouldn’t seem to be a stretch. I only found out it was there when I saw it outside the ATS hangars one time. I figured this was one to watch since it would have to go home at some point.

Whether there was a ton to be done or whether COVID delayed progress, I don’t know. However, it stayed at ATS for a long time. I had an alert on it should a flight plan be filed but nothing happened. I talked to other people up there and we all wondered when it would move. Then, finally a flight plan was filed for a flight coming back to Paine Field. This was good news since it would mean taxi shots, departure and arrival. I headed up. First flight after a long layup is not likely to go smoothly and the time for departure kept slipping and slipping. Eventually, later in the day, the flight disappeared off FlightAware.

A few days later, up it popped online again. Unfortunately, this time it was a flight direct to Phoenix so redelivery. That was unfortunate. So was the fact that we were experiencing some torrential rains. However, this is a rare one so I headed up. As per the last time, the departure time slipped a bit but then it pulled on to the taxiway heading for the runway. Amazingly, the rain had abated and it looked very promising. I got out of the car and walked to the bank to get some shots. At some point, I began to feel some rain drops. Then I felt what seemed to be the stream from a fire hose. The rain came pummeling down and I was instantly soaked. At this point, I was wet so no point heading back to the car.

When they got to the hold point, they stayed around for a while. Then someone came to the door on our side and opened it. I imagine they were getting pretty wet doing this since I was. As it sat there at low power, it was still pulling a vortex into the inlet of one of the engines. Maybe there was a door open warning but they closed it again and then pulled towards the active runway. The plane is covered in graphics pointing at parts of the airframe that have Honeywell technology installed. Its most distinguishing feature, though, is the pylon mounted on the side of the front fuselage on which turboprop engines can be mounted for airborne testing. No engines are there at the moment but the pylon itself is pretty substantial. Coming towards us and then lining up, we had the pylon on our. Side. They powered up and disappeared in to the gloom as they climbed out heading home to Phoenix.

New Rolls Royce Testbed

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One of the things I was interested to see at Moses Lake was the new testbed being fitted out for Rolls Royce. Rolls currently has a Boeing 747-200 that they use for airborne testing of their engines. I shot it at Tucson and posted about it here. They recently acquired a 747-400 from Qantas to use as a testbed and it was moved to Moses Lake for conversion by Aerotec. I don’t know the timescales for the conversion process but it will be interesting to see it when ready in house colors and hopefully with a big engine installed on one of the inboard pylons.

Edwards Storage Yard

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I had a recent post of some shots from the USAF museum at Edwards AFB. It reminded me of my first visit to Edwards in 1990. On that trip I saw both the USAF side of things and the NASA side. The NASA hangars were great and there were lots of amazing types being used for testing purposes. I didn’t see everything I was hoping for there but it was still fantastic. One thing that really excited me was the storage lot. There were some interesting airframes parked up there. An F-8 Crusader that had been used for supercritical wing testing was there. I think that has since been taken care of and is now restored. The fly by wire testbed was also there.

There was also a weird hybrid airframe. I think it was called RSRA which stood for rotor systems research aircraft. This was a hybrid of rotor and fixed wing technologies. One of them was modified for the X-Wing program which was canceled before it could fly. Not sure which one I saw but I think it was the unmodified one. These things could have A-10/S-3 engines fitted to them for higher speed research work. Oh, to have seen one in action. This lot would have been definitely worth some time looking around if it had been possible.

Cranfield Jetstreams

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I read that Cranfield is getting a new SAAB 340 to be used as a flying testbed. It is replacing the current Jetstream 31. The plane is used for test work but it is also used as a flying classroom for aeronautical engineering students. The Jetstream 31 was an old BAE Systems airframe (one I was involved with in my days at Warton) and it replaced a Jetstream 200. That old Astazou powered airframe was in use in the late 80s when I went through the course. Here are shots of that old plane when we were using it as well as the current one when it showed up at RIAT.

Automated Chevy Bolt

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The Chevy Bolt is not the sort of car that would normally grab my attention. This one did though. It was at The Henry Ford (even if it is a Chevy) and it is tricked out with all sorts of sensors. I assume it was some sort of development tested for automated vehicles. I could have made the effort to go and read whatever was written next to it but that seemed far to much like hard work. I guess I am the sort of person an automated vehicle is designed for if I can’t be bothered to even do that!

How Did I Miss the Radar Testbed?

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I was walking around the new Vietnam Veterans Memorial in Tukwila after the opening ceremonies had concluded. A few things took off while I was there but nothing caught my eye. Then I heard another jet get airborne. I looked around and saw a CRJ climbing out. However, this was no normal CRJ. It was one of the Northrop Grumman radar test beds. These have replaced the BAC1-11 jets that are now all retired. I got the camera up late (settings weren’t ideal either) and shot it as it disappeared into the distance. I had no idea it was on the ground (and would have gone looking for it had I known). Oh well, win some lose some!