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About Gerhardvienna

  • Birthday 05/16/1957

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    Vienna / Austria

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  1. Hi Dave Saved them, thank you for that good hint! Regards Gerhard
  2. Hi Eric That are some so called "local" differencies between european and american paddlers. Most of the european were run on coal, much more efficient than wood, so the americans needed that extra space, but without increasing the draft. Good to see even the things that made the ships work well on different ways for different conditions. Regards Gerhard
  3. Hi Roger The mechanical devuces were a later innovation to the paddlewheels, most of the early european ships had solid bucket wheels. As I`m building a 1:50 model of the swiss steamer RIGI too, beneath my other ships, I`ve made some research for the accurate wheels, most had them solid. The pic shows the mechanism for the "moving" buckets, they are driven by an excentered rod, no springs were needed. Regards Gerhard
  4. Hi Eric Good "first attempt" , waiting for more from your drawings! I just wonder about that large extensions, european steamers did not have these, as far as I know. Even this giant wheels were not usual in europe, they had another philosophy for the wheels. European paddlewheels were much smaller, and were about 1 third of their diameter in the water. Regards Gerhard
  5. Hi Dr. Per It is indeed! But there will be a long way to go, just the raw system of the engines is "in my head" formed, some sketches will be made soon, just working on the engine mounts. BTW, the rest of ordered wood arrived just a few minutes ago, hooray! Regards Gerhard
  6. Hi Eric Good pics again! Interesting, that they made the frames with wooden treenails. Reason could have been, that they dont rust and are more flexible than iron ones? Regards Gerhard
  7. Received some pieces pf brass for my Cairo-engines today, still waiting for the rest of wood i ordered.... Me and my lathe will have some work to do Regards Gerhard
  8. I would expect this drum a an expansion or condenser drum for the exhaust steam, connected to the smokestacks. Just an expection!! Regards Gerhard
  9. WOW! What photos! I`ve never had such a good pic from the engine, seems to be close to the Cairo engines! It is indeed a bit sad that you have taken no video, but the system of this engines were relativley simple as there were just two valves for steam inlet and two valves for steam outlet, the change of direction was made by hand from the engineers. Thanks for sharing this good infos with us! Regards Gerhard
  10. Hi Eric Most useful photos! Interesting, that the Doctor was so close to the boilers, the engineers must have sweat a lot! Working was obviously not easy on that ships! The photo from the front of boilers gives a good idea how they were built, so this is what I missed for my Cairo too. Thanks again for sharing. Regards Gerhard
  11. Brought my 86 years young dad to the Xray for his upcoming first hip surgery, was shopping food and much more for home, took my admiral with me on all that ways. So half of the day was spent with so called family affairs, now go to work on the Cairo again Regards Gerhard
  12. Hi Eric Not just my interest, as I hope........... Thank you for showing, this give us a clue how small the Doctor actually was! With the figure beneath we can guess the doctor was about 150 to 160 cm (5,4ft) high, the rest of measuring can be made from this. Even the "Maritime Texas" photo gives more info about that. Great finds. Regards Gerhard
  13. Hi Eric No worry about the photos, if there are no measurings there is always a way to find the correct size. Just cant wait to see more...................... Regards Gerhard
  14. Well seen, Roger! I have watched the pics, but have not discovered it ! And she has similar boilers as the city class ships, but with only 3 tubes instead of 5. Hi Eric I`m MUCH(!!!!!) Interested in photos from an original "doctor", this is something I will need for my Cairo build too. Are there any measurings to the engine? Thanks in advance for that! Regards Gerhard
  15. Hi Cathead Thanks for your nice compliments, much appreciated! I`m quite sure you will make an extraordinary work, even thus will take time. Would be interested in plans, but will have to scale them up to 1:50.......................... Regards Gerhard