Aircraft Insurance: Can I insure an aircraft under construction?

It is possible to obtain aircraft insurance for a new build on a 'Ground and Taxiing Only' basis so long as the aircraft is due for completion within 12 months of the policy start date. 

Cover can be on a 'Aircraft Loss or Damage' basis only or also include liability cover, although please note there is no cover for aircraft damage arising directly from the build process itself (e.g. if a hole is drilled in the wrong place).

Once the build is complete, you can simply upgrade the same aviation insurance policy to a full flight basis, in which case a pro-rata premium is charged from the date of the upgrade.