Let us take first a look at the Jean Boudriot drawing of this detail available in the Le REQUIN monograph
There shown three of these iron supports
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and now as agreed with Rüdiger his execution on his model
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The oars are tied together as a bundle and laying inside these three supports - in addition the supports are connected with a removable rope which shall fix the bundle inside the supports - simple way (not execution in the model!) and very clever detail
during construction with the oars, but without the ropes
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and the final stage
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Now I have a new additional small challenge to make - I will do something similar on my Le Coureur
Once more many thanks to @Lucius for the assiatance and help and @Tobias for the hint to take a look at the La Requin
Planset review - LE REQUIN - Xebec - 1750" - scale 1:48 - by Jean Boudriot & Hubert Berti
Planset Review: LE REQUIN - Xebec - 1750" - scale 1:48 by Jean Boudriot & Hubert Berti translation into english by David H. Roberts booklet available in french, english or italian language available at ancre: https://ancre.fr/en/monograph/18-monographie-du-requin-chebec-1750-.html...
shipsofscale.com
There shown three of these iron supports
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and now as agreed with Rüdiger his execution on his model

The oars are tied together as a bundle and laying inside these three supports - in addition the supports are connected with a removable rope which shall fix the bundle inside the supports - simple way (not execution in the model!) and very clever detail
during construction with the oars, but without the ropes

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and the final stage
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Now I have a new additional small challenge to make - I will do something similar on my Le Coureur
Once more many thanks to @Lucius for the assiatance and help and @Tobias for the hint to take a look at the La Requin