I'm trying to find information about the Attenborough drogue
for a research project
I have going.
Before I follow-on, this thread is NOT to encourage debate about the pros and cons for the use of drogues, drogues vs para-anchors, or storm survival and tactics. I'm attempting to seek specific research
data/info from CF members who may have an Attenborough drogue
or who have used one in a past life. If you wish to respond I respectfully request that you stay on topic
Here's what I know. The Attenborough drogue is fabricated from 100% stainless steel
by Carisbrooke Marine
Engineering (a UK company) in the 70's (I think). The company no longer exists so it is not possible to buy a "new" Attenborough drogue. I expect that the majority of these drogues would have been sold in the UK or Europe
. I don't believe they were marketed in the U.S. There is only scant detail about this drogue in Victor Shane's DDDB and no case history
of one being used in storm conditions.
Due to the relatively high cost of the stainless materials and the fabrication skills necessary to fabricate each individual unit, it is reasonable to assume that the drogues were only manufactured in small numbers and sold for a premium price
. (I'm trying to confirm this). The manufacture of each of the four concave louver blades is quite complex.
Coppins of New Zealand
sell a soft shell rip-stop material drogue marketed as the "Sea Claw". The diving
design and performance of the Sea-Claw is similar to the Attenborough drogue. Both drogues are designed to "dive" and to perform their work 6-10 meters (dependent on rode
length) below the turbulent storm waves above.
I have no data to indicate if the drogue performed well and just maybe it was a dud! It is quite a heavy unit (about 10kg) and doesn't store easily, so maybe not popular. I'm informed that the Attenborough design was based on sub-surface trawling equipment
used by mine sweepers in WW2.
So was it a successful design??? Don't know!! It certainly is a substantial heavy weight unit with the promise of high performance. Hence the research project
Once again, if any reader has additional details rigging
a suitable rode
, performance specifications, history
about the manufacturer etc, and can contribute quality info that will assist me to better my research, I will be most interested and appreciative.