Early RB211-22B engines that powered standard lenght TriStars were equipped simultaneously with both cascade vanes and clamshells reversers. The clamshells when deployed deflected the hot stream from the engine core. But they were very unreliable and troublesome and were definitely removed. As a result, a new and shorter afterbody design led to less engine drag.
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| Reverser system © Lockheed |
As an option, Lockheed offered built-in airstairs that serviced door R3 on standard lenght TriStars. Very few airlines took this option, LTU being one of them.
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| Built-in airstairs © Lockheed |
Our website's Specialties page was updated with this information and pictures.
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