Working with nose and cockpit – Heinkel He-115 Project

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2023.12.23

By Stein | December 23, 2023 - 21:28 |December 23, 2023 Working with the small parts, Working with nose and cockpit, Work on the center section

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The Aviation History Museum Sola is currently an ongoing and large construction project here. In addition, a major regrouping of the aircraft that we have on display will be done in our old exhibition hall. The high level of activity leads to a great need for voluntary efforts from the museum's members. This also affects the amount of work we are able to do on the Heinkel He 115 project.

Nevertheless, Egil Thomsen managed to make a new pilot's seat during the autumn. When the aircraft was raised in 2012, much of the equipment needed to adjust the pilot's seat height was still intact. In addition, the reinforced plate behind and under the seat was in good condition. The pilot seat itself, with associated frame made of aluminum tubes, however, was completely gone.

Reinforcing plate and accessories for seat height adjustment as found when raising the aircraft i 2012

Reinforcement plate and accessories for height adjustment of the seat as found when the aircraft was raised 2012

Egil has reconstructed the tube frame and then made a new seat pan itself. This is bolted to the tube frame. The result has been very good. To be able to raise and lower the seating height, the seating arrangement was equipped with a separate hydraulic system. A hand pump was mounted on the side of the seat. The hydraulic pump and some of the valves that have been in the system are still in good condition. Egil is now working on finalizing and assembling this entire system. We are not yet ready to be able to reassemble the seat arrangement in the cockpit again. This will therefore be exhibited for a period in the museum's exhibition.

Egil Thomsen has made a new tube frame and seat pan to replace the pilot's seat which was completely destroyed

The new pilot's seat. The original seat was completely destroyed after lying down 70 years on the fiord.

Pilot's seat. The museum's Arado 96 can be seen in the background.

Egil has overhauled the mechanism used to lock the pilot's seat height.

The hydraulic pump which was part of the system to be able to raise and lower the pilot's sitting height

Some of the equipment included in the system to be able to raise and lower the pilot's sitting height.

Trial installation of some of the equipment used to height adjust the pilot's seat.

Throughout the winter, we will continue to work on reassembling equipment in the cockpit and Kanzel. This is equipment that we have previously taken out of the sections in order to preserve it

The center section has corrosion damage throughout 8 wing mounts with associated structure. The same applies to all four float mounts. In order to work with these injuries, the center section must be placed in a "crib". In addition to the "crib", we need jigs to ensure that we are able to reassemble the wing mounts in the correct position. The National Antiquities has given us financial support to be able to build a jig with an associated "crib". Work on building these is now well under way. We plan to be able to start work on repairing the corrosion damage to the center section during 2024.

The center section together with parts of the crib in which the section is to be placed while the work is in progress.

The museum services in Rogaland by conservator Eirik Aarebrot have preserved the aircraft's starter batteries for us. These are two twelve volt acid batteries that we in 2012 found at the back of the tunnel in the center section. The batteries were behind 70 years on the fjord bed still in a usable condition. We have attached some of the content of the reports that Eirik made after the conservation was finished.

Conservation of batteries:

"The batteries had heavy deposits on the surface that resembled rust. There were also some holes and penetrations in the steel boxes. The battery terminals and lead contacts on top of the battery had some white deposits and corrosion. The top, which was made of pitch, had a number of cracks. All the acid meters, which is part of the corks, had broken off and fallen into the batteries.

The caps were removed and the batteries were rinsed out with warm water.

The steel cases were scraped clean of deposits using a scalpel. It turned out that the condition was much better than first thought. Large parts of the steel plate still had their fine original black surface. However, there were some minor holes which means that the batteries are leaking. These were sealed with Cosmoloid 80, which is a microcrystalline wax with a melting temperature of 80°C. The steel plates were preheated with a heat gun and melted wax was poured into the holes.

The battery poles with connection points were cleaned by knocking off the deposits with a small hammer. The battery cells were filled with Fluidfilm Liquid A, which is a thin lanolin oil.

The following materials have been used in connection with the conservation:

Cosmoloid H80 (Microcrystalline wax)

Fluidfilm Liquid A (Thin lanolin oil)

Loctite Repair Extreme ( Glue used on corks and acid meter tubes )»

One of two starter batteries after preservation

One of the starter batteries after conservation at the Museums Spesialistene.

2023.06.12

By Stein | June 13, 2023 - 16:20 |June 13, 2023 Working with the small parts, Working with nose and cockpit

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It is time again for summer and holidays. There will still be some work on the cockpit section in the coming months. When the plane was raised, the pilot's seat was completely corroded. Fortunately, everything was suspended, brackets, armrests, much of the hydraulic system, as well as the reinforced plate still intact. This summer's project will be to make a new tubular frame for the seat.

This spring we spent time reassembling equipment that had previously been removed from the cockpit and nose sections. Much of this is smaller details such as contacts and switches that do not show up very well in the big picture. By late autumn, we expect to have finished this reassembly. We will then permanently reassemble the cockpit and nose sections. There will then still remain some large and continuous systems that must be fitted into these sections.

We have been on a trip to Hungary to visit two businesses there that may be relevant to help us with work on the center section.

We have been out on the fjord several times this winter and this spring to look for the parts that were left on the bottom of the fjord when the plane was raised. The search shows us that the parts are still down there. The challenge is to get divers with the right qualifications to retrieve the parts for us.

A finer copy of the seat that we will rebuild in aluminium. In the picture, the hood plate is not fitted.

We have been out several times looking for remaining parts on the bottom of the fjord.

2023.03.16

By Stein | March 16, 2023 - 18:29 |March 16, 2023 Working with nose and cockpit

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We have now taken the cockpit section out of the exhibition and into the workshop. This is because we will be working inside the cockpit to prepare it to be connected to Kanzel . Before we can screw the sections together, there is still a lot of work remaining to install equipment in the cockpit. These are parts that have previously been taken out to be preserved. When the parts are back in place in the aircraft, we can screw the cockpit and Kanzel together as a unit. With cockpit and Kanzel mounted together as a unit, can we install some systems that are continuous from the front of the Kanzel and all the way to the back of the cockpit. The last part of the work to finish the nose will be to screw all the windows forward in the Kanzel back into place.

Cockpit and Kanzel side by side in the workshop.

There are still some parts that have remained at the bottom of Hafrsfjord after the uplift. The most important parts for us are the glass dome at the front of the nose, as well as sliding the window over the navigator's seat. In January, we were out in the fjord with an ROV to mark the position of where the parts were located. Unfortunately, the visibility at the very bottom was very poor.. The search was then given up pending better visibility on the fjord bottom. The work on marking the parts will be taken up again as soon as the visibility conditions on the fjord bottom again make it possible to work down there with an ROV.

Tor Arthur Andreasen ( t.v ) and Per Øhman prepares for launching the ROV

ROV on its way down towards the fjord bottom.

2022.06.14

By Stein | June 12, 2022 - 14:01 |June 14, 2022 Working with the small parts, Working with nose and cockpit, Work on the center section

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We have lately been working mostly on preparing to move the center section out of the concrete hall and into the workshop.. This is because we will start work on repairing local corrosion damage in the center section. These lesions are mainly localized to the areas within the wing, float and engine mounts. This will be a time consuming job. If we are lucky, we will not have to do other and more intrusive work on the center section. Ultrasound examinations, as IKM Inspection AS has done for, shows us that fortunately there is little corrosion on the most complicated parts of the support structure in the center section.

The center section will take up a lot of space inside the workshop. To free up this space, it has been a priority to work with the Caproni nose section. The latter has of course had some consequences for the progress of the work with He 115 cockpit and nose section. The first relocation of the center section inside the concrete hall has now been completed. The plan further now is to saw out a five meter wide opening in the west- the wall of the concrete hall. Through this we will then roll the center section. When the center section is out of the concrete hall, we must immediately close the opening in the brick wall. The process of sawing out the hole in the concrete, move out the center section and then close the hole in the concrete wall must happen in one and the same day. We plan to do this during the autumn.

The center section has been moved and is here ready to be rolled further out of the concrete hall

The concrete wall to be sawn out to make room for the exit of the center section

When we raised the plane, we found in the Kanzel parts of a measuring instrument that we did not understand the use of. We understood that these were parts of a drift meter, but we were unsure how this had been mounted in the plane. The drift meter was then given a temporary preservation and then stored. On the starboard side at the front of the Kanzel there is a rectangular hatch. Behind this hatch we found the remains of a magnesium bracket and the remains of a cloth cuff. We did not understand what this hatch and bracket had been used for. In pictures by Heinkel 115 this hatch appears, with few exceptions, as closed.

Then we are lucky and are contacted by Marc Bressan who lives in Switzerland. Marc Bressan has a very solid knowledge of and experience with German aircraft instruments. He had restored and built up a complete drift meter himself. Marc offered us to share with us his extensive knowledge and documentation about He 115 Tribsgërete. He sent us a bunch of pictures that showed us what a complete system should look like and work.

The information we received from Marc showed us that we needed a lot to have a complete system for drift measurement.. Marc now offered to complete and donate to us parts he had left over from the restoration of his own Tribsgërete. With these parts we were now in possession of a complete system for drift measurement. The drift meter that we found in the plane in 2012 was only temporarily preserved and did not open up for interior cleaning and preservation. Marc opened this for us and did a thorough internal preservation of the meter for. This facility for measuring drift, will when these are mounted in the aircraft show these well again forward in the Kanzel. We owe Marc Bressan a very big thank you for the help the project has given.

This equipment, along with everything else we have found on board, shows that a very well-trained crew was needed for them to be able to operate and benefit from all the aircraft's systems.

The tube to the drift meter system was the only one we found when we were in 2012 raised the plane.

The following pictures we have mainly received from Marc Bressan:

This base plate that we were missing was donated to us by Marc Bressan

These are the parts that make up the base plate

The base plate is test-mounted on the starboard side of the Kanzel.

Behind the black hatch there should be a canvas bellows through which the pipe should be inserted.

The base plate is test-mounted in Kanzel.

The top of the tube was missing, this we also got donated by Marc Bressan.

Top sample mounted on the aircraft's original tubes.

Marc Bressan opened and preserved the inside of the tube for us.

From the inside conservation work on the pipe.

Pictures of the pipe after Marc Bressan has finished preserving and completing missing parts.

Detail photos of the top that we received as a gift from Marc Bressan.

Original parts mixed together with parts that we received as a gift.

2021.06.16

By Stein | June 14, 2021 - 21:07 |June 14, 2021 Work with motor, Working with nose and cockpit, Work on the center section

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In this post, we will show some pictures of the parts that are now in place in the cockpit.

Behind everything that is now mounted in the cockpit is a lot of work that the pictures can not make visible. This applies to both work with electrical components, work with instruments, as well as work with photos and documentation.

In addition to the work on the cockpit and the Pulpit, we have also begun to prepare what we will have to do with the center section in the years to come..

It is a guiding principle that we should as far as possible utilize all the original parts that we found in the plane when it was raised in 2012. At the same time, we try as far as possible to make things work again.

We all wish you a good summer…

Harald Egge in the process of installing brackets and valves for operation of cooling flaps outside in motor cowling.

Sigfried Hernes in the process of setting a bracket for dimmer switches.

Mute the switches in place right next to the trottle box.

The trottle box is also finished and ready for installation in the cockpit.

Torkild Thang Jørgensen has made a new one for the buck that was dismantled 1942.

Egil Thomsen has worked patiently with countless small and large electrical components.

Here it is just a matter of pressing, much works as when the plane crashed.

One of the electrical components found in the Kanzel.

This switch has Egil made to work and is original, only the cover and nameplate are made new.

Pulley for wire transfer from the rudder pedal.

Same pulley for wire transfer from side rudder pedal.

Tools for punching out new housings for castors.

Cable gate with fuses and junction boxes.

Primer pump for starting motors. The levers are for opening and closing hot air valves.

Bomb hatches under the cockpit with associated cylinders are back in place.

Hydraulic hand pump for inflating flaps in and out.

Sigfried Hernes has managed to get Revi charged back to functional condition.

The cockpit is now temporarily set out in the exhibition and work is therefore now being done on the Kanzel

Harald Egge and Roar Henriksen working with Kanzel.

Georg Krautz Johanessen has restored parts for the suspension for the pilot's seat.

2021.06.03

By Stein | June 3, 2021 - 18:11 |June 3, 2021 Working with nose and cockpit

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It has been since the summer 2020 been working on making a new instrument panel in the cockpit. Of the original panel, we only have a piece a few cm2 in size. This piece has nevertheless given us some information, among other things. what color the panel was when the plane crashed.

Luckily we found when the plane was lifted in 20212 all the original instruments that have been in the panel. It's in previous posts, on this page, accounted for the work of rebuilding these instruments. The condition of these was variable, but mainly there is still a very high degree of originality on the instruments that are now mounted in the pilot's instrument panel. The exceptions are radio bearing compass and fuel gauge that were not found in the aircraft in 2012.

Harald Egge working on the instrument panel

Sigfried Hernes has restored the instruments found in the plane in 2012

2021.01.11

By Stein | January 11, 2021 - 14:10 |January 11, 2021 Working with the small parts, Work with motor, Working with nose and cockpit, Work on the center section

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The year 2020

The year 2020 was a good year for Heinkel 115 the project through which many positive things have happened.

We have for several years had restrictions on the type of work we could do on the plane. During the past year, the Armed Forces Museums have largely been abolished these restrictions.

It formerly Heinkel 115 the steering group has been closed down. As a replacement for this a support group has been established with members from the Friends' Association, as well as two conservators engaged by the Jærmuseet. This solution gives us that working with the aircraft an easy access to a very versatile experience and competence.

It also in over the past year there has been a unanimous understanding that it can be necessary to make some interventions on the center section. This mainly applies to supporting beams, with associated attachments for wings and floats. This has led to it now is working to find solutions for how such work can be completed. Our goal is still to make small interventions and preserve as much as possible much of this section.

It has Throughout the year, work has been done on a number of different sub-projects. I de cases where equipment is completely destroyed, we integrate what may be left of the original equipment in the new one being built.

An example is the work that has now been completed to build a new hydraulic hand pump for flap and opening of bomb hatches etc.. Of the original pump, only handles remained, mechanical transfer to stamps, pistons and end caps. Said parts are built of high-quality materials and had done well down on the fjord bottom. All the pump housing and cylinders, on the other hand, were almost completely corroded. Pump housings and cylinders have now been rebuilt and the pump can now again be used to pump oil. The above mentioned remaining parts have been integrated in the new pump.

It is also throughout the year made a new instrument panel for the cockpit. Although most of the original panel was gone when the plane was lifted, will still the new panel be equipped with original instruments. These are instruments that were found in the aircraft and which has now been preserved and in some cases partially rebuilt.

Through At the same time, we have gained a good overview of the work with the instruments which instruments and other similar equipment have been in the cockpit of the aircraft and nasal section.

Another of the bigger things that have been done through 2020 is the work of rebuilding the system for suspension and transmissions from the rudder and toe pedals. Also here is remaining original parts have been integrated into the new finished product.

It has also become worked hard to preserve original electrical equipment. These are things like circuit breakers, switches, terminal blocks and many other smaller electrical components. The work is a time-consuming work of patience that is now really beginning to show again in form of finished preserved parts. These have either already been reassembled in the plane, or in stock ready for use..

The big and extensive cableway along the port side of the cockpit was also completed early in 2020

The outer the section of one engine stand was completely missing when the plane was lifted in June 2012. This is because one engine was salvaged before the plane sank in December 1942. It the missing section has been rebuilt during the autumn. At the same time, we have what we have of original brackets and other equipment for the motor brackets have been reassembled on the engine jacks.

Photo sharing archive and documentation is a time-consuming task that runs as long as the project ongoing. It is also through 2020 been working a lot on these things.

When the plane was raised in June 2012 a few smaller parts were left at the site. It was last year, several ROV dives were made at the crash site in Hafsfjord. Although the plane was unusually complete sea wreck to be, also missing our plane things that can not be found elsewhere. A new application has therefore been sent to raise He 115 parts from Limingen.

2020.10.22

By Stein | October 22, 2020 - 21:01 |October 22, 2020 Work with motor, Working with nose and cockpit, Work on the center section

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Efforts Heinkel He 115 has been going on all summer without the usual break that the participants' summer holidays tend to bring. Such has also we have been influenced by Covid 19.

Much work has been done to create a new instrument panel cockpit. We have only a few cm of the original panel² left off. Even if the panel is new, it will still be filled up by the original instruments who was on the plane the day it crashed.

A lot of impressive work has also been done to recreate parts for suspension of side rudder pedals, both for pilot and for navigator. Some of the parts of this large system were almost completely gone when the plane was lifted . Again has managed in a good way to intrigue some new parts in among the many originals parts.

A curiosity is that it has managed to get light in again the hand lamp that was placed in a box in the back of the telegraph operator cockpit.

Work is also currently underway to make new the missing parts to one engine stand. These are parts which we are missing since one engine and both floats were salvaged right after that the plane had crashed.

It is also gratifying that we will soon be able to continue the work to repair the corrosion damage in the supporting beams in the center section. The idea is to do necessary interventions to preserve the residual strength of the load-bearing structure, and in a as far as it is justifiable, to preserve the rest of the center section. The idea behind this approach is to be able to preserve as much of it as possible center section as original.

Over time, we have searched extensively for information on an instrument with a associated system that was located on the starboard side of the Kanzel. We have now received a great and informative answer from Armin Züger in Helsinki. He had read our request in a previous post on this website, se link; http://heinkel115.com/2020-06-11/?lang=en

Attached you can read Armin`s answer.

There was some open questions about a so-far unknown instrument, related to torpedos.

There is an operation manual: D.(air)T. 7212 "Description, Operation and maintenance of the PVC drop weapon 1006 A“ (which I have attached as a pdf document) that might shed a bit more light in this.

In the picture there some words “Scharf Torpedo Fallschirmlot Blind” on the unknown instrument.

“Scharf” and ”Blind” means basically “disarmed” and “armed” (i.e

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. defining if the torpedo will explode or not explode finally).

“Fallschirmlot” is another expression for Luftmine (parachute mine, LMA and LMB ), you will find this also in the manual

Now the interesting part:

The document contains also a schematic picture of a He 111 cockpit. There is one lever named BlindScharfhebel. And I guess this is what the unknown mechanism of your He 115 is. It’s a lever to arm/disarm the torpedo (in case of the He 115 maybe combined with some other functionality).

2020.06.11

By Stein | June 11, 2020 - 09:38 |June 11, 2020 Working with nose and cockpit

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Armed Forces Museums have for some time placed some restrictions on what types of work as we were able to do on the plane. These restrictions have now been lifted, and we can now continue the collaboration with the Jær Museum on the further work on the aircraft.

Pending that the said restrictions should be lifted we have continued to work clean and preserve parts as in 2014- 2015 took off from the aircraft cockpit and nose section. During this past winter season has several of these parts been reassembled in the aircraft

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. Large parts have also been reconstructed as was completely corroded when the plane was salvaged 2012.

Now is exhibition season again in progress, and the cockpit and nose sections are rolled out from the workshop and into the exhibition hall. Here it must stand the exhibition season is over again. Then it will be re-entered the workshop again.

It's working continue to finish outstanding work on the objects that have become preserved or made new through the winter season. In summary, it is quite clear that there has been a lot of positive things over the last six months plane.

We have been working on the aircraft ever since 2012 began to get acquainted with the aircraft and its equipment. Nevertheless, new questions about equipment are constantly emerging that we do not fully understand what has been used. Since we now work extensively with Kanzel and the cockpit sections, the most equipment that has stood here we are concerned about. By studying images from the days after the uplift, we have become aware of an instrument that has been linked to the insight and triggering of the torpedo. So far we have not been able to finally identify which instrument this has been. Attached are pictures taken by the instrument in June 2012.

2020.04.16

By Stein | April 11, 2020 - 18:36 |April 17, 2020 Work with motor, Working with nose and cockpit

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It has been done a lot of work on the nose and cockpit sections since our last status update. Much of this work is cleaning and preserving parts like we do previously taken out from the nose and cockpit. This is work that requires a lot of work both patience and courage

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. It is therefore gratifying to see how good results achieved. An example is:. the fuse line that was mounted during the pilot's port foot rests. These were basically full of rust and sediment residues, but a patient effort has led to several of these now in functional condition. The fuses are along with several larger terminal blocks now mounted back in port cable gates.

Another great work that has now been done is to create new all the big and complex the cableway that runs along the port side of the cockpit. Of the original cableway we had only a very small bit left. Therefore, it became a major challenge both to find out what the cable street looked like, and then to make a credible one copy of this. Both have succeeded very well thanks to a solid piece of professional work. Since we want to preserve so much of the originality as possible, is the bit we had left of the original cable street, been integrated into the newly created street.

There are also more places to come of the parts removed from the cockpit and nose 2014. Of these,. mentioned footrests, first fuck, a hydraulic cylinder and the navigator's folding seat. The retrofitting of the hot air system is also complete. That is as far as may have been used original pipes found when the cockpit and nose were emptied 2014.

It's working also by reconstructing what we lack of parts for suspension of siders pedals, and to create a new cockpit dashboard. To this last, we are so lucky to have finished preserving the original instruments.

Finally, have to It is mentioned that work is also being done on the last of the motorbikes. Here everything must go brackets are cleaned and reassembled as they were before dismantling winter 2015.

Unfortunately, the work on the aircraft is still hampered by an ongoing process of responsibility and ownership.