The U.S. Air Force has been looking at inductors for years, but the military and industry officials haven’t finalized designs yet.
That means that even if a manufacturer has a design, it’s unlikely to go on sale until next year.
Some members of Congress are pushing to make the Navy the first to sell a cleanload, but that has some members nervous.
The Navy is also considering inducting a new generation of inductors that are lighter and more efficient.
But the Navy is still considering how to get a new type of inductor off the ground.