21. Initially Leis'towers followed conventional design , supported by four timber legs. 22. Sources differ on the development history, but the gun itself was of conventional design . 23. Several conventional designs , the M36 and M38 included, did not even have bottom armour. 24. The tail was of conventional design with strut-braced stabilizers and carrying a fixed tailwheel. 25. This article describes the control surfaces used on a fixed-wing aircraft of conventional design . 26. They had a conventional design and regenerative brakes, although the latter was eventually removed. 27. The f / 4 lens shares the same conventional design . 28. It was a large biplane of largely conventional design , with unstaggered wings of equal span. 29. It was a conventional design for its day, with a high wing and conventional empennage. 30. In spite of a very conventional design , the tower offers an interesting and original cladding.
