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Old 05-12-2019, 04:40 AM   #1
M-Miller
 
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Default Sensenich identification and restoration

Hi all,

I few years back I picked up an Sensenich propeller at a yard sale. It is in a reasonable condition, however it needs some restoration. Now the time seems ripe to start a new project.

I will use the propeller for display only. I do like to do restorations the right way and since my knowledge of propellers is pretty much zero, I would like to ask a few questions.

1. After some research I found out that is it probably a propeller from an airboat (could somebody confirm this? See photo Overview)
2. The pin or nail holes of the aluminium ends seem to be filled with metal. Does anybody know which metal? or how this is done? (Photo Aluminium end)
3. I tried to find out what kind of propeller it is with help of the ID numbers but I could not work it out. Is there anybody able to help? (Photo identification 1 & 2)
4. The aluminium ends are ripped at the tips (Photo tear). There seems to be some residue of the same metal used for the pin/nail holes. I believe the top part needs to be tucked beneath the bottom layer and than filled with this mysterious metal. Is this true?

Thanks in advance!
Attached Images
File Type: jpg Overview.jpg (96.4 KB, 4 views)
File Type: jpg Identification.jpg (96.3 KB, 3 views)
File Type: jpg Aluminium end.jpg (96.5 KB, 2 views)
File Type: jpg Tear.jpg (83.3 KB, 2 views)
File Type: jpg Identification 2.jpg (92.7 KB, 4 views)

Last edited by M-Miller; 05-12-2019 at 05:24 AM.
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Old 05-12-2019, 06:00 AM   #2
Bob Gardner
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Welcome to our forum, M-Miller!

It is almost certainly from an airboat. They appear on eBay quite often.

The metal sheathing is held in place by rivets or small screws, which are countersunk and then filled with solder and sanded to make a smooth aerodynamic finish.

Dave Bahnson, who founded this website, will interpret the data on the hub for you.

With kind regards,

Bob
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Old 05-12-2019, 07:58 AM   #3
Dbahnson
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I'm not at home now but I think I have some airboat reference numbers in my files there. Sensenich used to have them listed on their web site but I think that page is gone now.
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Old 05-12-2019, 02:12 PM   #4
M-Miller
 
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Hi Bob,

Thanks for your reply. I am glad to know it is only solder and not cast aluminium or something similar .

I labeled the attached photo's below with letters. On Photo 1 it seems that side A is tucked under side B and then filled with solder. It is hard to make out because of some bondo from an earlier restoration done by the previous owner.
On Photo 2 it has been ripped open completely and thus also hard to see. However due to the residue of the solder it seems that it was beneath B and came loose.

What do you think is the right way to go? A under B or A over B?

Regards,

Marco
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File Type: jpg Photo 1.jpg (91.0 KB, 2 views)
File Type: jpg Photo 2.jpg (82.8 KB, 2 views)
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Old 05-12-2019, 02:14 PM   #5
M-Miller
 
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Thanks Dave!

I hope you are able to find something.
The construction year would be great.

Marco
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Old 05-13-2019, 07:33 AM   #6
Dbahnson
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Quote:
Originally Posted by M-Miller View Post
Thanks Dave!

I hope you are able to find something.
The construction year would be great.

Marco
I looked through my files and couldn't find a Sensenich Air Boat catalog. I have some from other manufacturers but just used the on-line one from Sensenich. They may have a hard copy that could be retrieved. Have you checked with them? If you find one let me know and I'll upload it to the web site.
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Old 05-13-2019, 01:42 PM   #7
M-Miller
 
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Quote:
Originally Posted by Dbahnson View Post
I looked through my files and couldn't find a Sensenich Air Boat catalog. I have some from other manufacturers but just used the on-line one from Sensenich. They may have a hard copy that could be retrieved. Have you checked with them? If you find one let me know and I'll upload it to the web site.
I contacted them a few days back. Sadly no reply yet.
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