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The D.31 was Roger Druine's second post-war design following the Aigle and was intended for both production and home-build markets. Production build rights for the low-wing monoplane were acquired by Rollason Aircraft and Engine in the UK and Stark Flugzeugbau in
Germany, and both companies produced modest quantities to add to those home-built versions. Many examples remain extant.
Robert Jackson "The Encyclopedia of Aircraft", 2004
| MODEL | D.31 |
| CREW | 1 |
| ENGINE | 1 x 45hp Ardem Mk IVmodified VW automobile piston engine |
| WEIGHTS |
| Take-off weight | 281 kg | 620 lb |
| DIMENSIONS |
| Wingspan | 6.5 m | 21 ft 4 in |
| Length | 5.23 m | 17 ft 2 in |
| PERFORMANCE |
| Cruise speed | 150 km/h | 93 mph |
| Ceiling | 2740 m | 9000 ft |
| Mike Walling, mikegmdw=yahoo.co.uk, 14.11.2011 I meant spats (not cowling) of course. | | Mike Walling, mikegmdw=yahoo.co.uk, 14.11.2011 I know that a number of Stark Turbulents were completed in Germany in the early 1960's I believe and I've seen photos of some of them - in fact there are a number still on the German register (which I understand is now longer published?. I have never seen a write up on the STARK version which I know had a cowling and canopy. Does anyone know where such details could be obtained? | | Bill Beeton, wpbeeton=gmail.com.au, 24.09.2011 I'm looking to buy a Turbulent (preferably one that needs to be completed!). Must be available in Australia ! | | Jeff Boatright, saaright=gmail.com, 28.10.2010 I am building a Turbulent and am interested in your STARK engine. What can you tell me about it? Thanks, Jeff | | Olaf, olaf.schiwek=web.de, 26.09.2010 I have a complete STARK - engine for sale for a Turbulent or a Druine!! | | fallen, fallen=san.rr.com, 22.02.2010 Looking for a set of plans? | | sven, 05.11.2009 Several Turbulents were built with better streamlined cowlings and canopies. In this form some were able to exeed vne in level flight. Unique? G-APWP
Built by Handley Page aircraft engineer Colin Rogers reached 135mph in level flight.untill the advent of formual V racing this made it the fastest Volksvagen powered aircraft .The 1200cc Poleman Hepu converted engine featured chrome plated cylinder barrels from the Porsche 356 racing engine.Cowlings that extended along the fuselage and a spring steel undercarriage mounted on the fuselage
With wheel spats added to the aerodynamic efficiency.Oddly an engineers wire brush served as a tail skid.
Originally it was housed in a fairing but a day at Elstrees tarmac runway destroyed it, from then on it was fitted complete with convenient handle but no fairing. | | Eduardo Sosa, chepososa=hotmail.com, 04.11.2009 where could we get one?? |
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Do you have any comments about this aircraft ?
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