From Flight
The latest model to be turned out from the Zeppelin Lindau works is the Do. Gs. II, which is a development of the Gs. I. The general arrangement is shown in the accompanying scale drawings, from which it will be seen that the chief alteration is in the cabin arrangement, the roof of the cabin extending aft and passing under the tractor screw of the front engine. This gives considerably more cabin space, seats being provided for seven to nine passengers inside the cabin. The pilot's cockpit is aft of the cabin, and contains two seats, one for the pilot and one for the engineer. Aft of this cockpit is the luggage room and the main petrol tanks. The two engines, as in the previous type, are 260 h.p. Maybachs, and are mounted above the wing. The latter is of similar shape and construction to, although of greater span and area than, that of the Gs. I. Instead of the biplane tail of the Gs. I, the latest type has a monoplane tail.
One of our photographs shows the passengers' cabin, which is entered through a door in the extreme nose. It is very comfortable and roomy, and at a pinch nine passengers can be got in without undue overcrowding.
In looking back on the different types of Dornier flying boats, one is mainly impressed by two factors in the development- the reduction in the number of engines, and the gradual raising of the engine position. The first boat has three engines placed in the hull and driving screws between the wings. The following four boats had four engines each, first placed in the hull, and later mounted between the hull and the monoplane wing. Finally in the latest designs the number of engines has been reduced to two, placed above the wing. When it is remembered that Herr Dornier was given a free hand and was not expected to turn out machines which would be of use in the war, it will be realised that he was not hampered  by war-time requirements but could devote his attention entirely to aerodynamic and structural considerations. Consequently one should regard his work from a somewhat different point of view, and this is, we think, the reason why more than ordinary interest attaches to the Dornier Zeppelins. Few designers have had such facilities during the last six years, and it is to be expected that the Zeppelin Lindau factory is more favourably placed for making an immediate start with commercial machines than is any other German factory. It therefore seems worth while to keep an eye on the coming products of this firm, and we shall endeavour to keep our readers informed on any new developments which may come along from the shores of Lake Constance.

• 
• 
• 

•