iiinova — where your digital self keeps evolving

Jack Koorneef @bunkerkruiper.bsky.social · 30/08/2026

Two weeks ago we had a nice day visiting the Bikers Festival at Spa-Francorchamps. Beautifull bikes, great people and a good sporty atmosphere. We will be back next year (maybe for the weekend, this year only Friday and Saturday, due to the biggest fire in Belgian history sunday was cancelled).

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Jack Koorneef @bunkerkruiper.bsky.social · 27/08/2026

Only one week left before we will revisit the battery of Bihen.

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Jack Koorneef @bunkerkruiper.bsky.social · 22/04/2026

The WSBK weekend was nice as usual. The Superbike races itself were a bit boring with Bulega winning everything but Supersport, Sportsbike and Northern talentcup were awome to watch.

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Jack Koorneef @bunkerkruiper.bsky.social · 04/02/2026

Here some pictures of a nice Westwallbunker type 105b. It lies on a ridge south of Beckingen. The 6cm strong armored plate was hit by a 5.7 or 7.5cm armor piercing grenade. The light green color inside the bunker is original WW2.

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Jack Koorneef @bunkerkruiper.bsky.social · 23/12/2025

OTD The S.D. was ordered to Gorinchem to investigate Germans that wanted to cross Boven-Merwede river to surrender, one of them, a German Officer, had new information on the V-weapons for him it did not work out even with help from four other men that wanted to do the same, and he left.

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Jack Koorneef @bunkerkruiper.bsky.social · 20/09/2025

Some pictures of the airbornelandings at Ginkelseheide, Ede, Netherlands. Para's from England, Greece, Germany, France, the Netherlands, America and other nations jump here not only to reenact the 1944 airbornlandings but also to practise in the phantomleap operation.

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Jack Koorneef @bunkerkruiper.bsky.social · 20/09/2025

German vehicles on the Ginkel heath. Never seen that before!

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Jack Koorneef @bunkerkruiper.bsky.social · 05/07/2025

The Seacommander Pas de Calais messages that around 18:30 a V1 (flyingbomb) crashed 30 metres in front of Lager Hasso. five minutes after the crash it exploded. Hasso was a storage for seamines and torpedo's partly underground. Today the concrete part is still visible, the mine is now a quarry.

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Jack Koorneef @bunkerkruiper.bsky.social · 28/06/2025

The fires in the Arsenal are still burning, bomberattack on Battery Yorck, Fort Querqueville has fallen in enemy hands. Hako found Fort Chavaignac and harbor-defenseboats without weapons present. The Fort Central fires at airplanes with its light anti-aircraftguns. Picture (remonterletemps.ign.fr)

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Jack Koorneef @bunkerkruiper.bsky.social · 22/06/2025

This is the part of the landdefenses (in German; Landfront) that was attacked otd 81 years+. These are some of the still visible parts of the dry AT-moat (in 1946, Geoportail). Other parts of the LF just lacked these because the terrain was assumed tank free (forrests, slopes, swamps and brooks).

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Jack Koorneef @bunkerkruiper.bsky.social · 16/06/2025

OTD 81 years ago, MAA266 messages; From 22:03 to 22:18 Firing on the coast by a battleship (big caliber) from a distance of about 30Km. Round flies 75 seconds. 10 salvos and some single shots. One fell 100 metres behind the firedirectingbunker of battery Le Havre (3x 38cm guns building stage)

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Jack Koorneef @bunkerkruiper.bsky.social · 05/05/2025

And also trucks make a good apearance.

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Jack Koorneef @bunkerkruiper.bsky.social · 05/05/2025

There is an impressive amount of tracked armored vehicles.

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Jack Koorneef @bunkerkruiper.bsky.social · 05/05/2025

Yesterday at Camp Nijverdal, a nice diverse display of British and Canadian vehicles used in WW2. Today we remember the liberation of the Netherlands, the vehicles will make a combined convoy with the American camp at Deurningen. With about 350 vehicles the column will be long. The motorcycles.

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Jack Koorneef @bunkerkruiper.bsky.social · 13/04/2025

Ducati's hard at work at the Ramshoek Assen during the WSBK 2025 Assen Round.

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Jack Koorneef @bunkerkruiper.bsky.social · 13/04/2025

Our Dutch WSBK hero's! Bo, Jeffrey and Michael. Superbike weekend at Assen. Wonderfull and spectacular raceweekend. Nice weather, fast bikes and nice people.

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Jack Koorneef @bunkerkruiper.bsky.social · 13/04/2025

WSBK Woman's Championship 2025 Assen.

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Jack Koorneef @bunkerkruiper.bsky.social · 29/03/2025

Even less then tow weeks till the Superbikes return to Assen.

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Jack Koorneef @bunkerkruiper.bsky.social · 29/03/2025

There also is a special 5cm KwK Doppelschartenstand that even had a extra tobruk for a tankturret. The bunker is of a special design with many different shapes to get the best results when firing at the landing enemy.

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Jack Koorneef @bunkerkruiper.bsky.social · 29/03/2025

The "back" of Cotentin was not as well protected as the bay where later the beaches would become D-Daybeaches. But still they do have nice bunkers, you have to do a long beachwalk but it will pay off. Especially in the summerevenings when the sun is low. Lots of small Tobruks but also nice type 676.

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Jack Koorneef @bunkerkruiper.bsky.social · 27/03/2025

The area of Cherbourg has it share of bunkers in all kinds of use and some are special. This is a picture of a commandbunker type 608, this one has a non standard observationpost added. It was once covered by a steel plate (probably a 7P7 -10cm thick). It is located at MKB Brommy.

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Jack Koorneef @bunkerkruiper.bsky.social · 10/03/2025

Well, coming days the weather will be getting colder again. Let me quick post a bikepicture.

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Jack Koorneef @bunkerkruiper.bsky.social · 05/03/2025

Yesterday was one with really good weather, ideal to visit the memorial at Keizersveer, it is just a piece of polder but in the end of 1944 a place where soldiers desperately fought for their life.

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Jack Koorneef @bunkerkruiper.bsky.social · 23/02/2025

We had a nice motorcyclefriday because we went to the Motorbeurs at Utrecht. Pretty busy, riding motorcycles is getting more and more popular, everyone should know how cool it is. Lots of nice bikes and dito people. Good food and lots of things to do!

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Jack Koorneef @bunkerkruiper.bsky.social · 18/02/2025

Today a nice drawing from the German Bundes Archiv, this bunker was only built in the Festung Hoek van Holland (i thought 5 times) and only one is left. It can hold 30.000 liters of water. No official type number yet but it could a type 53.

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Jack Koorneef @bunkerkruiper.bsky.social · 13/02/2025

Is this the MotoGP Worldchampion of season 2025?

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Jack Koorneef @bunkerkruiper.bsky.social · 13/02/2025

Almost 20 years ago i had a very bad experience when on vacation to France, tents flew through the air in the night and it was raining for most of the week but luckily there also was a day of sun, so here is a sunny 621 crewshelter at the airfield north of Calais (Stp Brück - Wn d).

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Jack Koorneef @bunkerkruiper.bsky.social · 10/02/2025

Every year in September for a week the windmills of Kinderdijk in the Netherlands are lit. always a bit lucky when there is no rain or wind so you get nice reflections on the water. You get twice as much for free (we are cheapass Dutchies).

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Jack Koorneef @bunkerkruiper.bsky.social · 09/02/2025

Next time we go to Bastogne we will visit the German military cemetary again. We missed it last year due to fog on the way to Bastogne.

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Jack Koorneef @bunkerkruiper.bsky.social · 08/02/2025

Less then a month for the first round of the WSBK, Can't wait till April 11-13 when these guys will visit Assen!

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Jack Koorneef @bunkerkruiper.bsky.social · 04/02/2025

This is one of the coolest bunkers ever built by the Germans, it has a revolving concrete turret. This way the gun could fire 360 degrees but also keep its 2 metre reinforced concrete cover. Only one was built at Calais, near Brest another was being built and more were being designed and planned.

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Jack Koorneef @bunkerkruiper.bsky.social · 30/01/2025

The "scharte" of the German 38cm battery Todt is huge. Truely impressive just like the rest of the bunker. The battery has four of these casemates, one being a museum, one is a exploded mess, one is closed and one is still visitable (except the lower floor), so much to see and to learn here.

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Jack Koorneef @bunkerkruiper.bsky.social · 26/01/2025

Two nice examples of wallpaintings in the battery of Grosser Kurfurst.

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Jack Koorneef @bunkerkruiper.bsky.social · 23/01/2025

The mills of Kinderdijk in the fog.

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Jack Koorneef @bunkerkruiper.bsky.social · 22/01/2025

According to a resistance document Deventer bridge was missed during a bombardment and the bombs fell in the citycenter and killed 30 to 40 people, the sentiment among the population was "not favorable" for the airforce pilots. 6 Februari 1945 it was also bad 61 civilians did not survive the attack.

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Jack Koorneef @bunkerkruiper.bsky.social · 11/01/2025

In the autumn and winter the high waterlevel is evident and the places where the ground for the trenches was extracted are full of water but the trenches themselves are just a little moist from the recent rainfall/snow. The whole complex is worth a visit, the trenches and bunkers show the real deal.

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Jack Koorneef @bunkerkruiper.bsky.social · 11/01/2025

This part was important because of the road and railway cutting thru the fortified-line, MG, gun, personnel, command and observationbunkers were built. because of the high waterlevel the trenches were not dug in the ground but made in heaps of earth that was dug up next to it.

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