article_snippet.sent: Hound Dog II: The smaller jet was used by The Lisa Marie during The Lisa Marie refit and was also his back-up plane .
article_snippet.sent: Hound Dog II would use Hound Dog II - a Lockheed Jetstar - to fly to Lisa Marie’s hangar to see how the refit was going.
article_snippet.sent: When the refit was finished, Hound Dog II became Hound Dog II back-up jet.