TRIHEDRAL SIGNALS WITH RHOMBIC LATTICE (O Trekhgrannykh Signalakh s Rombicheskoi Reshetkoi),
AERONAUTICAL CHART AND INFORMATION CENTER ST LOUIS MO LINGUISTIC SECTION
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Trihedral signals with a rhombic lattice have great advantages in comparison with signals with cross lattice. According to preliminary data, they can compete with tetrahedral signals. This paper discusses in detail the suggestions made for the improvement in the construction of these rhombic lattice signals, taking into consideration the type of foundation, flexibility, weight and height of the various wooden signals.