Gerhardvienna

Hi Gerald
 
This is really helpful! So I can make my choice for the boats, and maybe start with one of them! Thank you
 
Best regards
Gerhard

Hi johnhoward
EVERY hint helps, Thank you!
By studying the sketch above, this could have been a 26ft long cutter. I found one pinnace at the NMM Greenwich collection, wich will be around 16 cm length in 1:50 measure. even the shape comes close to the drawings, but the boat is a bit younger, from 1878. But I expect that there were not so much changes in shape on such boats, so I will go with it. Just the one Launch is still what I wonder about length and shape. By searching for "Bristol Boats" I fell over the Atkin&Co Site, they show a good drawing for a 15ft 6in. boat, even similar to the Cairo drawings.  http://www.atkinboatplans.com/Oar/BruceConklin.html

Best regards
Gerhard

Thanks Gerhard and Gerald,
 
I think these drawings will do nicely.
 
johnhoward

small update :
 
installed the bridge front, the wheelhouse-roof platform and its railing, as well a the access ladders thereto. the further bridge front bulwarks and the wing cabinets are under contruction.
 
Nils
 

passengers on the promenade deck...
 

 
 

There is no surplus space on the midships line
 
 

 
 

 
 

 
 

 
 

0,3 mm thick brass sheet will be shaped to the wing cabinets of the bridge

Impressive in it's size, and in it's many details ...

Beneath the studys about the second auxiliary engine and the 12 pounder I made another gun barrel ready for 3D printing. This time is was the Rifled Army 42 pounder, 3 required for the model.

 
Regards, and many thanks for watching
Gerhard

Hi johnhoward
EVERY hint helps, Thank you!
By studying the sketch above, this could have been a 26ft long cutter. I found one pinnace at the NMM Greenwich collection, wich will be around 16 cm length in 1:50 measure. even the shape comes close to the drawings, but the boat is a bit younger, from 1878. But I expect that there were not so much changes in shape on such boats, so I will go with it. Just the one Launch is still what I wonder about length and shape. By searching for "Bristol Boats" I fell over the Atkin&Co Site, they show a good drawing for a 15ft 6in. boat, even similar to the Cairo drawings.  http://www.atkinboatplans.com/Oar/BruceConklin.html

Best regards
Gerhard

Hi Gerald
 
This is really helpful! So I can make my choice for the boats, and maybe start with one of them! Thank you
 
Best regards
Gerhard

These are 1853-54 vintage; launch, cutters, quarter-boats, and stern boat for Constellation

Hi johnhoward
EVERY hint helps, Thank you!
By studying the sketch above, this could have been a 26ft long cutter. I found one pinnace at the NMM Greenwich collection, wich will be around 16 cm length in 1:50 measure. even the shape comes close to the drawings, but the boat is a bit younger, from 1878. But I expect that there were not so much changes in shape on such boats, so I will go with it. Just the one Launch is still what I wonder about length and shape. By searching for "Bristol Boats" I fell over the Atkin&Co Site, they show a good drawing for a 15ft 6in. boat, even similar to the Cairo drawings.  http://www.atkinboatplans.com/Oar/BruceConklin.html

Best regards
Gerhard

Gerhard,
I've attached the information I have accumulated so far on the Cairo's boats, one launch and three cutters. The photos and outline drawings probably would be enough for a reconstruction but we would prefer an existing detailed drawing.  I haven't yet selected a particular plan for their construction but I've previously read somewhere, possibly Gene Bodar's log, that they were similar to "Bristol Boats". I haven't searched for this yet but it shouldn't be too hard to find.  We plan to display two of them on the starboard side, covered with tarps so only the planform would really be necessary.
One of the others on the port side would be open and contain a bow mounted skid for the 12-pdr boat howitzer but not the barrel so details of this could come from those drawings.
We are hoping to be able to complete our model in about another year so I still have time for research as the boats will be one of the last things to model. 
 
I hope this helps a little,
johnhoward
Cutter beside-USS Cairo.bmp


Cutter section.bmp
Cutter,Civil War.bmp
Carondelet(2).bmp

I`m doing my best, therefore are so many requests I have to make. Still one more, what size did the ships boats have? Soewhere I read about 2 different types of boats, see the pic. I just dont know at the moment where I found this

 
Hi Mark
 
That`s what I`m afraid of, that a lot of things simply disappeared for some reason,  and is lost now maybe forever.
 
Regards& thank you all for stumbling in
Gerhard

I`m doing my best, therefore are so many requests I have to make. Still one more, what size did the ships boats have? Soewhere I read about 2 different types of boats, see the pic. I just dont know at the moment where I found this

 
Hi Mark
 
That`s what I`m afraid of, that a lot of things simply disappeared for some reason,  and is lost now maybe forever.
 
Regards& thank you all for stumbling in
Gerhard

Hi johnhoward
 
So this all brings me to the conclusion: i will build the doctor close to the boilers as you did show in the Paddlewheel attachment. The auxiliary engine is not to locate, but will be built in too, I will search for the location of this engine, maybe I will make it as you did show earlier, with a connection to the capstan. This WAS steam driven, when I read, what the Vicksburg museum page tells:  https://www.nps.gov/vick/learn/historyculture/capstan.htm
So a lot of open questins are answered in the last few days, Thank YOU Sir!
Even the 12 pounder is now good to locate and to build as a model, so a lot of "extra" work will be made
 
Best Regards
Gerhard

Hi johnhoward
 
So this all brings me to the conclusion: i will build the doctor close to the boilers as you did show in the Paddlewheel attachment. The auxiliary engine is not to locate, but will be built in too, I will search for the location of this engine, maybe I will make it as you did show earlier, with a connection to the capstan. This WAS steam driven, when I read, what the Vicksburg museum page tells:  https://www.nps.gov/vick/learn/historyculture/capstan.htm
So a lot of open questins are answered in the last few days, Thank YOU Sir!
Even the 12 pounder is now good to locate and to build as a model, so a lot of "extra" work will be made
 
Best Regards
Gerhard

I`m doing my best, therefore are so many requests I have to make. Still one more, what size did the ships boats have? Soewhere I read about 2 different types of boats, see the pic. I just dont know at the moment where I found this

 
Hi Mark
 
That`s what I`m afraid of, that a lot of things simply disappeared for some reason,  and is lost now maybe forever.
 
Regards& thank you all for stumbling in
Gerhard

Beneath the studys about the second auxiliary engine and the 12 pounder I made another gun barrel ready for 3D printing. This time is was the Rifled Army 42 pounder, 3 required for the model.

 
Regards, and many thanks for watching
Gerhard

For the sake of speculation... is it possible that the wreck isn't complete in the sense that material has been dredged up or hauled out of the water by salvagers?   When I lived in St. Louis, one of the comments from a gentleman I knew at the Arch Museum was that much has been lost over the years to salvagers and work on the channels.

Thanks Gerhard,
Good luck with your projects and research. A live steam powered RC ironclad should really be amazing.
 
johnhoward

Hi johnhoward
 
So this all brings me to the conclusion: i will build the doctor close to the boilers as you did show in the Paddlewheel attachment. The auxiliary engine is not to locate, but will be built in too, I will search for the location of this engine, maybe I will make it as you did show earlier, with a connection to the capstan. This WAS steam driven, when I read, what the Vicksburg museum page tells:  https://www.nps.gov/vick/learn/historyculture/capstan.htm
So a lot of open questins are answered in the last few days, Thank YOU Sir!
Even the 12 pounder is now good to locate and to build as a model, so a lot of "extra" work will be made
 
Best Regards
Gerhard

Beneath the studys about the second auxiliary engine and the 12 pounder I made another gun barrel ready for 3D printing. This time is was the Rifled Army 42 pounder, 3 required for the model.

 
Regards, and many thanks for watching
Gerhard

Hi Roger
 
In addition to the books you mentioned (I have them both downloaded months ago...), i found another one, which shows the carriage for the 12-pounder best in side view:
http://www.civilwarnavy.org/?page_id=321
 
Best Regards
Gerhard

Beneath the studys about the second auxiliary engine and the 12 pounder I made another gun barrel ready for 3D printing. This time is was the Rifled Army 42 pounder, 3 required for the model.

 
Regards, and many thanks for watching
Gerhard

Hi johnhoward
 
So this all brings me to the conclusion: i will build the doctor close to the boilers as you did show in the Paddlewheel attachment. The auxiliary engine is not to locate, but will be built in too, I will search for the location of this engine, maybe I will make it as you did show earlier, with a connection to the capstan. This WAS steam driven, when I read, what the Vicksburg museum page tells:  https://www.nps.gov/vick/learn/historyculture/capstan.htm
So a lot of open questins are answered in the last few days, Thank YOU Sir!
Even the 12 pounder is now good to locate and to build as a model, so a lot of "extra" work will be made
 
Best Regards
Gerhard

Gerhard & Others,
There are several questions in the previous few responses which are very helpful in arriving at the most plausible configuration for the USS Cairo and the other "City Class Ironclads'.
We have been researching this for about 3 years while meanwhile constructing our 1:24 scale model for the Missouri Civil War Museum and I agree we still don't have all the answers.  All of the existing drawings are based on a mixture of actual recovered fragments of the original ironclad, the original written specifications, and reconstructions of the most probable technically plausible configuration. The building of our large scale model has given us better insight for verifying or determining the most likely reconstruction.
Question 1: Are you sure the capstan was steam driven?
Answer: The best proof comes from the NPS Historical Structural Report (HSR) for the USS Cairo under the section on "Auxiliary Equipment" which lists; Steam driven capstan, Steam driven pumps, Hand pumps, and Feedwater steam engine ("Doctor"). The recovered capstan does include release pins to permit manual powering and gearing for two speeds(or mechanical advantage). However, I think steam power would prove most useful for dislodging a 500+ ton ironclad from a sandbar or snag in the shallow US Western Rivers. 
Question 2: ... can we find out the location for this second auxiliary engine?
Answer: Since this engine apparently was not recovered,  I doubt that we will ever find any absolute proof, however as I outlined in a previous response,  our model was used to reconstruct the simplest method of moving the scaled down (Ashley) engine out of the coal bin via a PTO shaft and this is offered for consideration.
Question 3: ... so, the Doctor should be built in but turned 90-degrees,...?
Answer: Yes, however  Gene Bodar actually also located the "Doctor" a little too far aft on top of the paddlewheel feedwater chute which he made flat rather than curving up in front of the wheel. (You may also notice he installed his nicely made boilers backwards) [See: Paddlewheel Inlet attachment]
 
johnhoward