Tag Archives: radar

How Did I Miss the Radar Testbed?

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!

Sabreliner Testbed

The Sabreliner is a neat little jet under normal circumstances, combining as it does the wing of the Sabre with a fuselage for passengers.  This example, that now lives in the Evergreen Aerospace Museum in McMinnville Oregon, is even better because it is a testbed.  The nose has a new radome grafted into place to allow the testing of different radar.  Meanwhile, pods can be mounted under the wings to test a variety of different sensors and electronics.  Some of these different configurations are displayed alongside the airframe.  Good to know that after years of specialized service, the aircraft will survive in the indoor comfort of the museum.

AWACS Oddity

Scan 2-1594.jpgA number of different airframes have been used for airborne early warning requirements. The Boeing E-3 Sentry is the most well-known but there have been a number of other types over the years. SAAB developed a radar system that has been mounted on Embraer 145 jets, SAAB 340s and SAAB 2000s. The development of this system was started in the 1980s and a testbed was produced prior to the system appearing on a production airframe. This testbed was a Fairchild Metro turboprop. It made an appearance at the Farnborough airshow where I got some shots of it. It was camouflaged in what was then the standard Swedish camouflage scheme. This was a cool look for their planes and I do miss it.

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DHS Citation with Radar

wpid13598-QB5Y2645.jpgA buddy of mine recently photographed a Cessna Citation in Texas which, at the time, he didn’t pay too much attention to. Later, when he looked at the pictures he realized it had an unusual fairing mounted on it which we thought might be a radar of some sort. This triggered a memory for me of a Citation that I saw at Andrews AFB. This was operated by Homeland Security and included a modified nose with an air intercept radar. I don’t know which types it was but I seem to recall it might be a variant of the F-16s radar. Anyway, thinking of that made me dig out the original shot and here is the aircraft in question.

Northrop Grumman Testbeds

wpid13600-C59F4302.jpgEvery once in a while I am looking for things to include in the blog from previous photographic outings. I was discussing an aircraft with an unusual radar installation which will now show up in an upcoming blog post as well. However, it triggered another thought about some radar testbed aircraft that I used to see quite regularly. For a number of years I was working in Washington DC on a regular basis and I would fly in to BWI airport. Aside from being a popular hub for Southwest, it is also the home of a Northrop Grumman radar plant.

They have a hangar on site which not only deals with their corporate aircraft but also their testbeds for the airborne radar programs. This hangar is located along a tree lined taxiway so everything is pretty obscured from view (unless you are airborne when you can see in a lot more clearly). The two testbeds that I saw quite frequently were a Sabreliner business jet and a BAC 1-11 airliner. The 1-11 was a regular sight when I was a lot younger but now they are almost all gone. Therefore, this was the one I was always pleased to see.

wpid13602-C59F4306.jpgSadly, I often saw them when I was without a camera or the camera was away. No electronics below 10,000’ in those days. However, I did catch them occasionally so these shots are a reminder of what was there. I suspect that the 1-11 is no longer in use. I imagine it was becoming a pain to maintain but I don’t know for sure whether it still is around. If you know, please do tell me.