The 20th Anniversary of the Keikyu Blue Sky Trains

Set 606 of the EMU 600 series, Blue Sky Train

This is a bit late to mention, but Keikyu quietly celebrated the 20th anniversary of its Blue Sky Trains last year. I’d like to share a little about them today.

What Is the Blue Sky Train?

When people think of Keikyu, the first image that comes to mind is usually its bright red trains. That’s true—though there are a few colorful exceptions. One is the Keikyu Yellow Happy Train, painted yellow and operated with a single EMU 1000 series set. Another is the Blue Sky Train, which comes in a striking blue livery and includes one set each from the EMU 600 and EMU 2100 series.

The blue paint represents both the sky above Haneda Airport and the sea along the Miura Peninsula. In that sense, the Blue Sky Train serves as a symbol of Keikyu’s airport access service and its connection to the coastal resort areas.

The photo above shows Set 606 of the EMU 600 series, one of the Blue Sky Train sets. Beginning on October 27 last year, a special anniversary sticker was added to the front. It’s surprisingly modest compared to Keikyu’s usual bold designs, don’t you think? For the record, the other Blue Sky Train—Set 2133 of the EMU 2100 series—also carried the same sticker. Modesty aside, congratulations to the Blue Sky Train on its 20th anniversary!

While I’m at it, let me share another photo taken in late autumn last year. The picture below shows a standard-color EMU 600 series train crossing the Yatsumori Overpass, which spans the JR tracks near Shinagawa Station. The yellow ginkgo trees create a beautiful natural frame, making the red train stand out vividly. It’s one of my favorite viewing spots along the Keikyu Line—such a lovely scene.

Unfortunately, this scenery won’t last much longer. A major project to rebuild the overpass is underway to relieve congestion at the nearby level crossing. Improved transportation is important, of course, but I can’t help feeling a little sad knowing that this atmospheric spot will soon disappear. I suppose you can’t please everyone.

Standard-color EMU 600 series passing over Yatsumori Overpass

Related link:

・Official information on the overpass replacement project (Japanese only)

A Jellyfish Aquarium on the Uetsu Main Line

JR East GV-E400 series diesel-electric multiple unit (DEMU)

Let me start with a question: What brings you peace?

For me, it's trains with cross-seats, such as Odakyu's Romancecars.

Besides trains, what else?

That's what today's post is about.

I recently visited Kamo Aquarium in Tsuruoka City, Yamagata Prefecture, about 470 km north of Tokyo. This municipal aquarium is famous for its impressive jellyfish exhibits. In fact, it currently displays around 100 species of jellyfish, earning official recognition from Guinness World Records as the world's largest jellyfish exhibit.

I'm proud that Japan is home to the world's largest jellyfish aquarium, but it has been a long road to success.

Kamo Aquarium opened in 1964. However, visitor numbers gradually declined, and by 1997 the aquarium was facing an existential crisis.

This was where the magic happened.

One day, the aquarium staff discovered a jellyfish in a small fish tank and immediately thought, "This is it."

Nearly 30 years have passed since that moment, and Kamo Aquarium has made a remarkable comeback. During my visit, I saw countless holidaymakers flocking to the aquarium to admire its wide variety of jellyfish. I was happily one of them.

I was fascinated by the many different species on display, especially the Blue Cannonball jellyfish from California (see the photo below). Its beautifully rounded blue form brought me a wonderful sense of peace.

Of course, I can't end this post without mentioning the railway side of things—after all, this is a railway blog.

The nearest station to Kamo Aquarium is Tsuruoka on JR East's Uetsu Main Line. There, I came across an unfamiliar local train: the GV-E400 series (see the top photo). It is JR East's first diesel-electric multiple unit (DEMU), which entered service in 2019. Each trainset consists of two single-cab cars.

My first impression was that it looked similar to the HB-E200 series. Both trains feature angular front ends, although the HB-E200 series is actually a hybrid train equipped with rechargeable batteries.

My trip to Kamo Aquarium gave me the chance to enjoy both a fascinating world of jellyfish and another new railway experience on the Uetsu Main Line.

Blue Cannonball jellyfish at Kamo Aquarium

Related link:

・Official information from JR East (in Japanese)

・Official information from Kamo Aquarium

The Tobu 90000 Series EMU: A New Commuter Train

Set 91001 of the Tobu 90000 series EMU at Shinrin-koen Depot

Following my previous posts on Keio’s 2000 series, Seibu’s L00, Sotetsu’s 13000 series, and Enoden’s new 700 series EMUs, I’m happy to introduce another brand-new train that has joined the Tokyo metropolitan area fleet.

Please take a look at the photo above. Here it is—the Tobu Railway 90000 series EMU for the Tojo Line. The new train is scheduled to enter service this September, but I had the chance to see it before its official debut by joining an event hosted by the Japan Railfan Club. Today, I’d like to share that memorable experience with you.

What’s New About the 90000 Series?

First, the front end features a reverse-slant design that sweeps upward from the bottom. Doesn't it remind you of something? Yes—a ship! But why? The areas along the Tojo Line owe much of their early development to inland waterways before the railway was built, and the new design pays tribute to that history. I like the story behind it.

To me, this reverse-slant front is slightly reminiscent of the Chiba Urban Monorail 0-series. If so, I wondered whether the front coupler might be difficult to accommodate. On the Chiba monorail, the coupler is mounted above the body. On the Tobu 90000 series, however, it has to be installed below the body. With such a ship-like front, I was afraid the coupler might stick out like a tongue. Wouldn't that look a bit awkward?

I examined the front several times with that concern in mind, but it turned out to be unfounded. The coupler is neatly integrated into the skirt and the surrounding equipment, so it doesn't protrude very much. Tobu got it right!

Second, take a look at the interior in the photo below. You can see wavy lines on the seat partitions. If you look closely, you'll notice the same pattern on the floor. These waves also represent the rivers and streams along the Tojo Line. I like that thoughtful touch.

Finally, take another look at the top photo. The windows in the passenger doors have been lowered compared with those on existing trains. As a result, the interior feels much brighter, and children can enjoy the view outside more easily. I think that's a wonderful improvement.

I'm running out of space here, so I'll save the technical specifications of the 90000 series for a future post. Please look forward to it!

Interior of the 90000 series EMU

Related link:

• Official information from Tobu Railway (in Japanese)

Serving a Double Purpose on the Keisei Chiba Line

Set 3668 of the Shibatetsu 3600 series EMU at Makuhari-hongo Station

You may remember that I wrote about the retirement of the Shibayama Railway (Shibatetsu) 3500 series EMU in March this year. At that time, I mentioned that I would save the replacement for the 3500 series for a future post.

Three months have passed since then, and now I finally have a chance to introduce it.

Please take a look at the photo above—this is Set 3668 of the Shibatetsu 3600 series EMU, which has been newly leased from Keisei Electric Railway. To welcome Set 3668, I recently visited Makuhari-hongo Station on the Keisei Chiba Line and took the above photo, as 3668F occasionally operates through onto Keisei lines.

The technical specifications of Set 3668 are, of course, identical to those of the Keisei 3600 series. However, before entering service with Shibatetsu, the body stripe colors were changed from red and blue (the Keisei colors) to green and red (the Shibatetsu colors).

You may be thinking, “Is this really a newly assigned train? It looks just as old as the former Set 3540.” I understand what you mean. However, as a railway enthusiast, I am quite satisfied with this replacement because: (1) the veteran Set 3668 has escaped retirement, and (2) Set 3668 is a high-performance train.

Set 3668 was originally built in the late 1980s. It currently consists of four motor cars with no trailer cars and is equipped with a VFD traction control system. Japanese railfans affectionately call this trainset “Turbo-kun.” “Turbo” comes from the English word “turbocharger,” while “-kun” is a casual Japanese suffix used for boys or for male friends and colleagues with whom one is on familiar terms. In short, Turbo-kun means “a powerful train.”

Turbo-kun, go for it!

After welcoming Set 3668, I switched gears to another hobby of mine—fossil collecting. As I have mentioned before, fossil collecting has been a lifelong hobby of mine, just like railway enthusiasm. My hunting ground that day was Makuhari Artificial Beach, located near Makuhari-hongo Station. Fossil-bearing rocks dredged from the floor of Tokyo Bay can sometimes be found there.

Please take a look at the photo below—this was my find of the day: Thalassinoides isp. It is not a body fossil but an ichnofossil representing crustacean burrows. It is about 10 cm long and consists of intricately intertwined branches, giving it a somewhat creepy appearance.

That day, I was able to pursue two hobbies during a single trip on the Keisei Chiba Line.

An ichnofossil, Thalassinoides isp., found at Makuhari Artificial Beach

The 30th Anniversary of the Romancecar EXE

Odakyu Series 30000 EMU "Romancecar EXE"

On March 23, Odakyu celebrated the 30th anniversary of its Romancecar EXE. Today, I would like to share this milestone with you.

First, let me briefly look back at the Romancecar EXE.

The Romancecar EXE (officially the Series 30000 EMU) is a limited express train operated by Odakyu Electric Railway. It entered service in 1996.

To be honest, I was disappointed when the EXE made its debut because it abandoned many of the traditional features that had made the Romancecar so special. For example, the driver's cab was no longer located on the upper level, meaning passengers could no longer enjoy a panoramic front view through the large observation window. Earlier Romancecar models featured articulated bogies, which helped reduce weight and improve ride stability, whereas the EXE adopted conventional bogies instead. I still remember muttering to myself, "The Romancecar isn't special anymore."

In fact, the EXE was not particularly popular among tourists or railway enthusiasts. After its introduction, the number of passengers using the Romancecar to visit Hakone declined significantly. This downturn continued until the new Romancecar VSE (Series 50000 EMU) entered service in 2005. While many previous Romancecar models had won the Blue Ribbon Prize, the EXE did not receive the award. As many of you may know, the Blue Ribbon Prize is presented annually by the Japan Railfan Club to the most outstanding new railway vehicle introduced in the previous year.

But was the EXE really all that bad?

As the saying goes, one person's junk is another person's treasure. One advantage was that reserving seats became much easier thanks to its increased passenger capacity. Another practical feature was its flexible train formation: a ten-car set could be divided into six-car and four-car sections to better match operational needs.

And then I discovered one more thing to appreciate—its reclining seats. They are just the right firmness for me, making them exceptionally comfortable on longer journeys.

To mark the 30th anniversary, a commemorative sticker has been placed on the front of the EXE (see the photo below). The sticker features two different cab designs: one with the standard cab front and the other with the gangway-equipped cab, highlighting the EXE's operational flexibility.

Happy 30th anniversary, Romancecar EXE!

I'm on your side now.

The commemorative sticker celebrating the 30th anniversary