Halberstadt CV  3471/18.  w/n 1368 Restoration






One of the last known photographs of the Brussels Air Museum's Halberstadt CV prior to the start of its restoration in April 2007


The photos below show the initial dismantling process, every single piece of the airframe down to single nuts and bolts are carefully catalogued and stored ready for restoration. Photographs provide a valuable guide to the actual construction of the aircraft. To date we have not been able to obtain either  constructors plans or a maintenance manual, we would be glad to hear from anyone out there who could help us in this matter.


The dismantling process begins with the wings, which are removed complete with struts and tension wires.

Engine cowlings and propeller among the first things to be removed
Photos below:
Fin , rudder and tailplane were removed very easily having been constructed  as separate units. In the last photo the control cables have been left in situ.
Photos below:
An asbestos fibre insulating jacket around the inlet manifolds necessitated careful removal by experts. In the first photo they have been encased in plastic prior to removal and  particle sensors placed around the aircraft   monitor asbestos dust liberated during the process. The last two photos show the manifolds removed, the first showing the remaining two original spark plugs.
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Photos below :
1.Plastic covering asbestos lagging on inlet manifolds   2.Interplane cabling and adjusters.   3.All metal hollow interplane struts showing original paint.  4. Rudder, the cross added in later years overpainted a Belgian Airforce roundel.



Photos below :
1.Tailplane, the true colours of the 5-pattern lozenge can be seen clearly on the underside.   2. Elevator   3&4. Two views of restoration work already begun on the tailfin.
Photos below : (26.09.2007)
1.Plan view of underside, left, lower wing showing the overall construction. 2. Same wing-tip showing the positions of the two principal spars and the aerofoil construction. 3. Different view of same wingtip. 4. This photo shows the pronounced "wash-out" of the internal trailing edge. A piece of the original fabric which remained covered for nearly 90 years shows the original colours of the 5-patterned lozenge.
 
Photos below : (26.09.2007)
1.More views of the left underside lower wing showing tensioner cable and a wire here shown attached to one of the aerofoil sections but which runs the whole length of the wing, to date it's purpose seems a little unclear. One theory which seems logical is that it is part of the radio antenna but this seems unlikely since it has no other point of attachment outside the wing. A more likely theory is that the wire acted as some sort of Faraday cage and protected the compass from an excessive static build up as the aircraft flew through charged clouds. 2. Fixing point to fuselage. 3.Wing mounting for the compass. 4.What is believed to be the constructors signature and date of construction. If we find a similar inscription in the fuselage then this will tell us that this wing originally belonged to the fuselage and was not a later addition which is most likely.

Photos below : (26.09.2007)
More views of the same wing.