Hello,
edit: sorry, Hot Tom was quicker
Yes, the GoodYear blimps have no internal structure, but are just blown-up bubbles - if with ballonetts, to control volume changes of the gas due to temperature changes, and keep the hull under pressure, because it would otherwise lose its shape and become uncontrollable.@Dart: blimps were foremost used by british and french forces, meaning a non-rigid manoeuverable airship, and England used them to full extent, and with a lot of effect, as marine scouts. Italy also had some of these, but they would not see the Flanders frontlines (mediterranean theatre).
Rigid airships were foremost used by Germany, being the Schuette-Lanz (SL) airships (basically a "Zeppelin" with wooden ribs, and framework, but small other changed details) and the Zeppelins (LZ, or L), frame made of Duralumin.
There were also german Parseval and other airships, more related to blimps with their non-rigid hulls and ballonetts, but they did not play a major role on the western front (reconnaissance towards Russia etc.).
There were a lot of german rigid type airships over France, first for reconnaissance missions (bad idea, the surviving rest was soon withdrawn), then for bombing trenches, and Paris, but it was soon considered as useless - the far-firing giant railroad guns were much more "effective" in a gruesome way. Foremost army Zeppelins (LZ) were used for missions against France (and Russia), while the naval airships (L) attacked England to bind forces, and patrolling the North, and baltic sea. Sometimes both "branches" partook in the same missions of a multi-airship attack, but it was more an exception.
Lots of Zeppelins were blown south by the foremost northerly winds, from England, so if they somehow lost their position there was no other possibility than to go down and see were they were, sometimes with bad results. There are numerous stories of Zeppelins following railroads in thick fog, to finally read the names of railyards, and get a grpip on their position.
At one time there were three Zeppelins over France, all thinking they had already reached Germany, again with "bad results". One blew up by ground fire (archie), one was captured almost intact, and became the prototype of the later british R34 and others, and the third one was blown further south unto the french
provence, where it made an emergency landing.
oops like that last Zeppelin, seems i got carried away, sorry
Greetings,
Catfish