About Ralph

Ralph Savelsberg, also known as Mad physicist, is an actual physicist, but he's not all that mad. He has been building with LEGO ever since he could first put two bricks together. He primarily builds scale models of cars and aircraft. You can find most of Ralph's stuff on his flickr pages.

Posts by Ralph

The F-16 Viper is still sleek after 40 years

Almost two weeks ago, the first example of the F-35 Joint Strike Fighter to be based in the Netherlands arrived at Leeuwarden Air Base. It marks the beginning of the end for the forty-year career of the F-16 with the Royal Netherlands Air Force. The F-16 is officially named the Fighting Falcon, but commonly known as the Viper. I’ve been thinking about building a larger scale version of the Viper for years. A reason why I didn’t was that the 1/18 scale model by Everblack basically was just too good.

However, the arrival of the Viper’s eventual replacement and the 40th anniversary finally made me decide to bite the proverbial bullet. I picked the same scale, 1/22, as most of my cars and my Top Gun Tomcat. The F-16 was a lighter and cheaper alternative to the F-15 Eagle and, as such, it’s a fairly small aircraft. The large scale does make the model quite a big beast, with a span of 56 studs and a length of more than 80 studs. However, it also allowed me to add more details and to more accurately represent the jet’s sleek shape. I couldn’t have done this on a smaller scale or without some of the new parts that LEGO has released in the last few years.
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Muscle cars look best in Bright N’ Obnoxious colors

I have a guilty pleasure: I like watching TV shows such as Fast N’ Loud or Bitchin’ Rides, in which cars that are typically American and rusty are transformed into mean street machines (usually along with plenty of scripted drama). I’ve been using my LEGO bricks to build classic American cars for years. Inspired by these shows, I finally built a classic car garage last year to accompany my car collection. While the cars I already had were pretty cool, I couldn’t help but feel there was something lacking: they simply weren’t all that Fast N’ Loud nor particularly Bitchin’.

That had to be rectified. I started leafing through one of my classic car books, picked two American muscle cars and built them in bright and obnoxious colors. The cars in question are a 1971 Buick GSX, in “Limemist Green” and a 1969 Ford Mustang Boss 302 in “Grabber Orange.”

There are subtleties to the real cars’ shapes that are hard to capture on this relatively small scale, but I got pretty close using sloped elements angled in different directions. When combined with the slightly larger tires I use on my cars, the wheel covers LEGO introduced for their Speed Champions sets mimic the rims. Black accents, such as the side striping and hood stripes, contrast nicely with the bright body colors. Front and rear spoilers finish the distinctive look. I didn’t go down the custom car route with these builds; most of the features on these cars were factory options. However, they will certainly brighten up my garage showroom. I’ll be taking them and the garage to the Great Western Brick Show in the UK this coming weekend.

Coastal Defence the East-German way

I live in a Dutch seaside town that lies mostly below sea level. So, the first thing that comes to mind when I think of coastal defences is the seawall visible at the end of the road. However, there’s an entirely different type of coastal defence of a less peaceful nature. The “Rubezh” coastal defence system looks like something straight out of a GI Joe cartoon, but it was a Soviet mobile anti-ship missile launcher. The version I built served with the East-German Navy, until German reunification at the end of the Cold War in 1990.

In early August, I’ll be at BrickFair Virginia, displaying LEGO models in a Cold War military collaboration. I’ve written about several of these in the last few months. I also intend to highlight some of the models by other builders who are participating. I’ve mostly built Western systems for the collaboration, so I wanted to build another Eastern block model. I specifically wanted it to be East-German because the division between East and West Germany was central to the Cold War.
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The Atlas ICBM, the pinnacle of fifties rocket science

In two months’ time, I’ll be displaying Cold War LEGO models at BrickFair Virginia. This is part of a collaboration with several other builders. I previously built a Soviet SS-20 ballistic missile launcher and an American Ground-Launched Cruise Missile launcher. Continuing my theme of nuclear-armed missiles, my most recent build is another classic: an American Atlas-F.

The Atlas entered service seventy years ago in 1959 as the first American Intercontinental Ballistic Missile. It could be launched from the continental US, fly through space, and then deliver a 3.75 Mt warhead (more than 200 times as powerful as the weapon used against Hiroshima) to a target in the Soviet Union, more than 8000 miles (~13000 km) away.
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A small fire engine for a large city

Home to almost 40 million people, greater Tokyo is the world’s most populous metropolitan area. Space is at a premium, so houses tend to be small and built closely together. To fight fires in the dense urban areas, the Tokyo Fire Department has a large fleet of exceedingly small fire engines. They are narrow enough to fit the streets between the houses. They also have a relatively short wheelbase, so that they can navigate tight corners. In preparation for a visit to Japan Brickfest later this year, I’m building a small collection of Japanese emergency vehicles. I’ve been looking forward to building the fire engine the most, so I’ve kept that for last.

At a first glance, it may not look all that small, especially if you are used to LEGO minifigure-scale builds. However, if you compare the pumper to the two fire fighters, it is obvious that it is a lot smaller than pumpers from Europe or the US. It is only about as wide as a typical American car and not all that much longer. Nonetheless, it has everything you’d expect from its larger counterparts and a little more. It is nice and red, obviously. It has pump control panels with connections for fire hoses, a few ladders stored on top and lots of compartments for tools. Typical for Japanese pumpers, it also houses a little separate wheeled cart in the back. Fire fighters use this to transport hoses down even narrower alleys. The model is like a miniature version of a miniature fire engine.

Please make way, Ambulance coming through

In a few months’ time, I’ll be attending Japan Brickfest in Kobe. I always find the prospect of displaying a model at an event motivating. So, for this occasion I am building a few new models with a Japanese twist. I presented my Tokyo Police car a little while ago and I’ve now completed an ambulance to accompany it. The typical Japanese ambulance is a Toyota HiMedic van.

Mine represents an example used by the Tokyo Fire Department. At a first glance it may look like a box on wheels. That box is a lot wider near the bottom than near the top, though. I got the sides to taper by attaching them to hinges, but getting all of this to fit was a challenge, in particular around the windscreen. Despite the angled sides, all the doors open, including a sliding door on each side of the van. I really enjoyed making the stickers. I got to draw kanji letters and little emblems that depict Kyuta-Kun, which is the super cute Tokyo Fire Department mascot. The end result looks very Japanese and suitably futuristic. Picture this with two nacelles instead of wheels and it wouldn’t look out of place in the shuttle bay of the Starship Enterprise. Befitting a culture known for politeness, these ambulances have a PA system with recorded sentences that kindly warn other road users to make way. That detail, unfortunately, is missing from my LEGO model.

The F4U Corsair: the US Navy’s Korean War workhorse

Lately I’ve been on a bit of a building spree. The Cold War collaboration for BrickFair Virginia, for which I have already built the SS-20 Saber and Gryphon GLCM transporter erector launchers, has given me lots of ideas and motivation. So far I have focussed on Cold War doomsday weapons that never saw use in anger. The actual armed conflicts that took place during the Cold War, although certainly brutal, fortunately were fought using conventional weapons. One of these was the Korean War.

In 1950, when Communist North Korea invaded South Korea, the US and a number of allies came to South Korea’s aid. At the time, the first jet aircraft were already in service. However, propeller-driven aircraft still had a role to play. Most US Navy aircraft carriers still had several squadrons of Vought F4U Corsairs on board.

This WW2 design may have seemed like an anachronism, but the veteran warbird could carry more weapons and spend more time overhead than faster jet fighters. They were the workhorse of US Naval aviation.

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The cruise missile that ended the Cold War?

At the moment I am building models from the Cold War for a collaboration with my friends at BrickFair Virginia. I already presented my Soviet SS-20 “Saber” about a week ago. That missile platform was seen as a direct threat to Western Europe. Whilst I was buying parts for that, I was already planning to build one of the weapons systems that NATO fielded in Europe: the BGM-109G Gryphon ground-launched cruise missile (GLCM). Or, more precisely, the vehicle used to transport and launch them.

It consisted of a large German-built MAN truck that pulled a semi-trailer with the launcher. This housed up to four cruise missiles in a box that was elevated to an angle of 45 degrees before launch. I built the vehicle to a scale of 1/43, making it roughly 53 studs long. Building its four-tone camouflage scheme (with dark green, dark tan, tan and black) was a challenge, especially on such a small vehicle.

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The SS-20 “Saber” is a sinister Cold War relic

A little more than forty years ago, with the Cold War still in full swing, the Soviet Union introduced a new ballistic missile: the RSD-10 “Pioneer”. NATO code-named it the SS-20 “Saber”. It had a range of 500-5500 km and carried three nuclear warheads, each of which was roughly ten times as powerful as the bomb used against Hiroshima. It seemed purpose-built to threaten Western Europe. The missile’s short flight time, of roughly 15 minutes, left very little warning. Furthermore, it was mobile, which made it even harder to counter. A large six-axle MAZ-547 transporter erector launcher carried the missile, housed inside a large cannister, to dispersed launch sites.

My diorama shows the launcher at a snow-covered launch site, with the missile cannister raised upright for launch. On the model it is almost solid, so there is no actual missile inside, but you can just see the tips of the three warheads. Unlike most of my models, it is minifig-scaled (I picked 1/43) and built mostly without visible studs. I built it for a Cold War themed collaborative build for BrickFair Virginia, in the coming August.
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Zoom zoom through Tokyo with the RX-8 patrol car

Japanese cars well-engineered and sometimes innovative, but in my opinion they are often not all that exciting. However, Japanese manufacturers do have a history of building some pretty neat sports cars, like the 240Z /Fairlady or Nissan GT-R or the Honda CRX.


A little more than a year ago, during a work trip, I was lucky to spend a day in Tokyo. It is an amazing city and ever since I’ve been thinking about building some Japan-themed LEGO models. I already have a collection of LEGO emergency vehicles, so adding a Japanese police car seemed like a good idea. Their typical vehicle is the Toyota Crown, which certainly fits the not-all-that-exciting category. However, a bit of internet research revealed that, until a few years ago, the Tokyo Police department also had Mazda RX-8 patrol cars. It’s a curvy coupé with suicide doors that was mainly used for traffic duties. Building one of those was a much more interesting prospect. I simply had to have one.

Behold the purposeful lines of the pugnacious Prowler

For decades, the Long Island-based Grumman Corporation was the US Navy’s primary aircraft supplier. They built a range of now-famous aircraft, including the Wildcat, Avenger, Hellcat, Cougar and, of course, the Tomcat. Starting in the early seventies, they also built the EA-6B Prowler; a four-seat electronic warfare aircraft for jamming enemy air defenses. I’ve had a model of one of these since 2007. In recent days I rebuilt it using new parts and techniques. Thanks to curved slopes and a lot more sideways building, I’ve been able to improve the shape.

Prowlers entered US Navy service in 1971 and, after a career of more than 40 years, the US Marines have only just retired their last examples. Their longevity is a testament to the quality of the design. Because its products were famously well engineered, Grumman was also known as the “Iron Works”. Their aircraft, however, aren’t exactly famous for their elegant looks. Even the Tomcat, arguably one of the prettiest fighters ever to grace an aircraft carrier’s deck and certainly one of the company’s prettier products, looks quite ungainly from some angles. Also known as the “flying drumstick”, the Prowler is no exception. It has a fairly large front end, which houses two separate cockpits, each with side-by-side seating for two crewmen. The large “football” on top of the vertical fin contains jamming equipment, as do wing-mounted pods. The wings fold up for use aboard aircraft carriers. For air-to-air refuelling, it has an oddly-cranked probe just in front of the windscreen. It all makes sense, but it’s not pretty. I think “purposeful” is more appropriate.

How to build a Pave Low helicopter with LEGO: Part 3 [Feature]

It’s done! Building my Transforming Bumblebee distracted me for a bit. However, I actually completed my Pave Low helicopter before the Beetle. In parts one and two of this series I explained how this sort of model has gotten a lot more complicated. Thanks to newer parts and techniques, the simple solutions I would have been happy with ten years ago just don’t hack it anymore. In this third and final part, I finally unveil the finished article.


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