twincommander, good point about the batteries. An old friend worked on the 146 for a time and mentioned that it had a hefty Nickel Cadmium pack, unsurprisingly, given one of its original rough field, no cart roles. The crash aircraft had been in storage for 3? years. One thing that NiCads *hate* is not being used regularly and they lose capacity permanently. For sure it would have deteriorated.