sentences:  Interest had been tepid when the idea was first floated, but with Lockheed's and Airbus' aggressive moves they once again brought the idea forward.Boeing was coy on the topic of a smaller 747, but suggested they were instead looking at an entirely new design, a "long thin" aircraft similar to an enlarged twin-engine 707.In the end, Japan Air Lines' YX needs were filled with 747-100SR, for "short range", which added passenger capacity at the cost of range.