| 1. | The ASW-22 has a two-wheel retractable undercarriage.
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| 2. | Unlike its predecessor, this plane featured a retractable undercarriage.
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| 3. | The Hi 21's retractable undercarriage was unusual for a glider.
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| 4. | Its retractable undercarriage was conventional and had a track of.
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| 5. | The main design feature retained from the RB Racer was its retractable undercarriage.
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| 6. | All had fixed, non-retractable undercarriage.
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| 7. | The 7W featured an all-metal fuselage as well as a retractable undercarriage.
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| 8. | The SEA-1 had a retractable undercarriage.
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| 9. | This led to the Type 300, with retractable undercarriage and the wingspan reduced by.
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| 10. | The retractable undercarriage is likewise manually actuated.
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