Oxygen system for MY-14

Perjantai 27.1.2017 - Reino Myllymäki


The oxygen bottles, controls, taps and meters of MY-9 and MY-14 were disappeared but the brackets, adapters, the remains of the oxygen pipes as well as the plate of the pressure and flow meters and controls were remaining. The original oxygen pipes were broken off and therefore they were useless.

MY-14_IVM_2017-02_Happipullot_combo_720x405.jpg

The oxygen bottles were found from the Hallinportti Aviation Museum and they have been in VL Myrsky fighter according to the imprints of fastening bands. The other parts of the oxygen system were found from the storages of the museums. Therefore it was possible to assemble the proper oxygen system of VL Myrsky fighter for MY-14 from original parts. Only the oxygen pipes had to be renewed.

MY-14_IVM_2017-02_Happimittarit_combo_720x405.jpg

The best brackets were chosen in order to be restored. The steel and aluminium bands were blasted by glass balls and the bolts were renewed. The abrasion covers of the fastening bands were renewed. According to the design documents they should be made from leather. However, the imprints on the bottles showed that they were made from canvas fabric. Therefore canvas was used in the restoration.

MY-14_IVM_2017-02_Happiputket_720x480.jpg

The bottles and the parts of the oxygen system were cleanded and covered by Renaissance wax. The pipes were made from new copper pipe and the fastening screws were renewed. Othewise the system was assembled from original parts. The normal solder paste was used in the solder joints instead of a hard solder.

MY-14_IVM_2017-02_Happijarjestelma_valmiina_720x405.jpg

The fastening band of the rubber oxygen tube was taken from the MY-9. It was straightened, basted by glass balls, painted by Isotrol stripping laquer and paint finish. A padding made from leather was fastened inside of the band.

Photos: Finnish Air Force Museum.

Avainsanat: aviation history, restoring, old aircraft, VL Myrsky II, MY-14