Brandenburg C.I

tctele · 13 November 2009, 11:21 AM

Hi All
Hope you can help. I'm trying to find out what airfoil was used on the Brandenburg C.I Series 61.5. This is Hansa Brandeburg machine as opposed to a UFAG built one. But at a pinch any airfoil my any manufacturer for the C.I will do. For interest this had the Daimler engine fitted. Thanks in advance

Lodzermensch · 14 November 2009, 02:44 AM

Welcome tctele,

I do not understand what you exactly mean asking for “an airfoil” – a shape of wings, their dimensions, their profile or overall look?

Regards

Marek

bristol scout · 14 November 2009, 03:15 AM

Hi tctele and Marek,
I am assuming (at least I was) that you mean which aerofoil SECTION did the C1 use--as in Clark 'Y' or Gottingen 622--for example.

Although I have a book with a nice article and colour pics. of the C1--it does not give aerofoil data.

The book is 'Warbirds' Translated from Italian by Dale McAdoo---by MACDONALDS AND JANES.

tctele · 14 November 2009, 05:00 AM

Sorry all if I didn't quite clarify what I was after. Yes, it's the airfoil section eg Gottingen. I've most of the Gottingen ones, including those used by manufacturers such as Hansa Brandenberg, UFAG, Phonix etc. But as I'm sure that most of you are aware the C.I was built under licence by various manufactures and there wasn't much standardisation between them. Did they all use their own interpretation of what would work best, did they change the airfoil as the war progressed etc? My research shows that over 1200 were built. So I'm sure there must have been some changes. But back to my original question: What did they use? Or, what did anyone use might be a better question. Data re this seems quite scarce. I've got lots of references re the airfoil sections but not specifics on what aircraft they where used on during the war.

mossie · 14 November 2009, 05:22 AM

Maybe the best place to look is in the NACA reports number 93, 124, 182 and 244.

The aircraft are sometimes mentioned by name or model number, sometimes by manufactures number.

Report 224 states on page 331 some HB aircraft's airfoils.

I'm not at home for a week so cannot cross referance any data.

I have from Achim Engles a book with all the German airfoil profiles, and it may also be contained in this book. It has both number and graphic data to work with.

Meantime, see http://naca.central.cranfield.ac.uk/...report-244.pdf

tctele · 14 November 2009, 05:41 AM

Thanks Mossie your a star, I'll start looking

mossie · 27 November 2009, 04:34 AM

I've gone over the two airfoil books from Achim, and no direct reference to the Hansa Brandenberg C.I airfoil.

I did find 14 airfoils with Hansa Brandenberg as the reference, but no aircraft model numbers. For example:

Profile 315 - HB model III.5
Profile 316 - HB model VI.5

Does anyone know what models they are refering to, manufactures internal numbers maybe?

The books are:
Dueutsche Fluzeugtechnik 1900-1920 Flugelprofile Teil A - Untersuchungen der Modell-Versuchsanstalt fur aerodynamik der Jahre 1917/18

Also Teli B

Both published by Achim Engels.