▁ 2 0 1 9 , ▁and ▁with ▁the ▁hy brid ▁power ▁module ▁replacing ▁the ▁rear ▁engine ▁before ▁the ▁end ▁of ▁the ▁year . ▁The ▁initial ▁power ▁module ▁uses ▁a ▁N iss an ▁autom obile ▁engine , ▁followed ▁by ▁an ▁in - house ▁mult if uel ▁engine ▁development . ▁Building ▁three ▁pro tot ypes ▁and ▁a ▁struct ural ▁test ▁article ▁will ▁need ▁a ▁new ▁fund ra ising . ▁The ▁first ▁production ▁aircraft ▁would ▁be ▁delivered ▁by ▁the ▁end ▁of ▁ 2 0 2 2 . ▁ ▁By ▁October ▁ 2 0 1 9 , ▁Vol t A ero ▁had ▁upgrad ed ▁its ▁test bed ▁with ▁two ▁Saf ran ▁Engine US ▁ 4 5 ▁mot ors , ▁each ▁producing ▁ ▁maximum ▁and ▁ ▁continu ously , ▁installed ▁on ▁the ▁wing ▁with ▁tra ctor ▁prop ellers . ▁November ▁flight ▁tests ▁from ▁Ro yan ▁– ▁Mé dis ▁Aer od rome ▁will ▁keep ▁both ▁p ist on ▁engines ▁for ▁ 1 5 ▁h , ▁before ▁removing ▁the ▁forward ▁p ist on ▁engine ▁for ▁ 1 0 ▁h . ▁The ▁a ft ▁hy brid ▁system ▁has ▁a ▁ ▁N iss an ▁car ▁engine ▁developed ▁with ▁Solution ▁F , ▁with ▁three ▁ ▁Em ra x ▁electric ▁mot ors ▁on ▁the ▁same ▁sh aft , ▁for ▁ 1 0 0 ▁h ▁of ▁tests ▁including ▁end urance ▁and ▁demonstr ation ▁fl ights . ▁By ▁March ▁ 2 0 2 0 , ▁flight ▁tri als ▁had ▁begun ▁for ▁the ▁hy brid - elect ric ▁with ▁its ▁push - pull ▁triple ▁prop eller