Tag Archives: USAF

A Feel for the EOR

During the recent Red Flag 16-1, which I was covering for Global Aviation Resource, I got to spend a portion of the day at the South EOR. EOR means end of the runway and this is where the planes come prior to taking off. They go through their final checks before launching and we get to be very close to them. I was mainly taking stills for the GAR feature but I got some video while I was there. I wanted to have something that shows what it feels like and how close we were. Consequently, some of the shots involve my fellow photographers so you can have some context of where we were.

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?

Some Gratuitous Raptor Shots

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Unfortunately, I have a rather large backlog of images that I haven’t done much with. This is sometimes the result of having a number of events in a short space of time and other times it is the result of laziness! Last year I covered the Planes of Fame show at Chino for GAR. I got a lot of shots while I was there and I needed a selection to illustrate the piece so I dived in, found some good examples, worked on those and put them into the feature.

Unfortunately, I never got around to undertaking a proper run through of the shoot. I only realized this recently so I have started to go through the images when the time allows. One part of the show I really liked was the twilight show on the Friday. This included a display by the USAF F-22. In the last light of the day, the airframe looked really great.

Running through the shots I found a few of the jet that I really liked. (I found more than will work for this post and some that I like for various reasons but won’t really gel with most people.) As a result, here are a sample of the shots I have been finding. Now I am starting to think about air shows this year for the first time. I might have to go to this one again!

Raptors at Play

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Is the Raptor a good looking jet or not? I still have yet to make up my mind on that one. From some angles it looks pretty cool and from others it looks awkward. Never look at it on the ground because the undercarriage is really not designed to make it look elegant! Either way, it is a striking jet. I have seen them a bunch of times at different venues and, while picking out some shots for a project, I also saw a bunch of F-22s and figured I might have a selection of some of them, hopefully looking at their best.

Aggressor F-15s

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The USAF recently got rid of their squadron of Boeing F-15 Eagle aggressor aircraft. The aggressors have used a combination of F-15 and F-16 aircraft for a while but now they have gone to an all F-16 operation. The aircraft have been redistributed to the other units that operate the type and will gradually lose their aggressor colors as they get repainted.

I thought I would celebrate them with a selection of shots of the F-15s that I have got over time. I wonder whether we shall see them again. It is not unknown for things to change again so we can hope. However, I won’t be putting money on it.

: An aggressor Boeing F-15C of the USAF launches from Nellis AFB NV.

Castle Air Museum

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It’s quite strange to think that I live about 90 minutes from a major air museum but have not been to it since moving here. Such is the case with the Castle Air Museum in Atwater CA. Located on the edge of what used to be Castle AFB, the museum has an extensive collection of Cold War and Second World War types, predominantly from the US but also with a variety of types from other countries. The majority of the collection is located outside which, given this is the central valley, should mean it is pretty sunny. How I managed to get there on a cloudy day I do not know. However, it was indeed overcast when we started walking around. Things did clear up a bit later on, though, so I actually went back to get a few extra shots of things I had seen early on.

As a one-time SAC bomber base, there are quite a few large bombers on display. From the B-29 and B-50 through the enormous B-36 Peacemaker (got to love irony) up to the B-47 and B-52 strategic jets, there are all sorts. Some rarer bomber types are also on show. Not necessarily successful ones but they add to the collection. The Brits are also represented with a Vulcan on display.

It isn’t just bombers though. Plenty of fighters and trainers are included in the collection and a good number come from the US Navy so, despite the base having a USAF history, they have covered both services well. There is enough space to have all of the aircraft well spread out so you can appreciate them from many angles. You also get quite a walk in if you take a look at everything.

One of the nice additions is an SR-71 Blackbird. There are a few SR-71s on display but not a huge number and seeing another one is always cool. However, they are quite tricky to photograph, particularly outdoors when the black paint scheme really makes for a strong contrast with the daylight. Still worth a go though.

There are a few types on display that are worthy of a little extra time so I may post about them separately. If you have even a vague interest in planes, though, make a trip to this museum. Nancy came along and, while she is not a big fan of planes, she found the variety of types quite interesting. High praise indeed!

Pegasus

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Some programs always seem to be trouble. Boeing’s efforts to turn the 767 into a tanker have not been smooth over the years. The original versions were a single boom tanker for Japan which was not too late. The three point version for Italy was a far more difficult affair and was several years late. When the USAF was after a new tanker, Boeing initially lost out to Airbus with their A330 based offer. A successful protest and s new competition followed and this time Boeing won.

Whether winning was good for them remains to be seen. The contract involves a cap on cost growth after which Boeing picks up all of the overrun. Supposedly they are already past that point so the split on overrun costs is now all theirs. Combine that with messing up the wiring and having to wire the flight test jets and you will see why the flight test program is behind schedule. The first of the four development jets flew last year in a civil configuration without the refueling equipment. It has since been on the ground at Boeing Field for further work. Very recently it took to the air again. Shortly before that, I passed by and saw it parked up on the Boeing ramp.

We shall see whether Boeing can pull back some of the delays and get the minimum number of jets into service by the contractual deadline. Whatever happens, I imagine these jets are going to become a lot more familiar in the coming years.

F-16 Inlet Vapor

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There are some aerodynamic effects that always catch my eye when I am going through images and one of these is vapor forming in engine inlets. The combination of lower airspeed with high thrust settings and moisture can result in puffs of vapor forming in the inlet, either continuously or, more often, as little flashes of cloud. The F-16 can often demonstrate this phenomenon when taking off although the formation is a little way back in the inlet.

On a recent Red Flag, the F-16s were out in force and, since it wasn’t the hottest and driest day that Nellis can provide, they were getting a bit of vapor to show up. Here are a few of the jets squeezing the moisture out of the air (even though it is the opposite of squeezing that makes it happen!).

F-22 Over Chino

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The USAF F-22 Raptor is a popular air show performer but, with a relatively small fleet, they only have one display team and they have a limited number of engagements around the US each year. Chino was one of the shows that had them booked so it was probably the only time I was going to see the Raptor display this year as opposed to flying operationally. It flew twice while I was there. The first flight was a sunset display and the second was to wrap up the main display on the Saturday including the Heritage Flight performance.

I got a lot of chances to get good shots of the plane. The sunset display had great light but both displays included some tight elements that brought the plane well into view. However, I am now going to tread on dangerous ground and say that I don’t think the display is that good. The flight control system design of the Raptor allows it to undertake some unusual maneuvers which the display makes a lot of. While they are certainly not the norm, I don’t think they should focus on them so much. Certainly show off some of the special features of the jet. Just don’t pretend they are tactically useful and spend more time showing people what they like about jet displays. Being low and slow is not a great place to be.

A crowd of people might be mildly amused by a jet coming down flat while gently rotating about its axis. However, turn up the noise and blast into some fast passes, tight turns and some more aggressive vertical maneuvers and your get a lot of crowd reaction. I once watched a Typhoon display being flown by a test pilot. It carried out a lot of high alpha rolls around the velocity vector. A few pilots around me appreciated the technical skill but everyone thought the display was boring.

Maybe, as the aircraft has been on the display circuit longer, they will evolve into a better combination. A little of the unusual stuff but more dynamic performances that show off the bits the public like.