• Announcements

    • Mike

      DDoS and Brute Force Attacks   09/18/2016

      From the day following upgrade to the new forum software, 15th Sept until the 19th, we were under a concerted attack by a person or persons using a number of 'bots and other people's Proxy networks to carry out what is called a Distributed Denial of Service attack, which is a method by which these 'bots submit thousands of requests to the website per second to overload the server and bring the site to its knees.  While this was going on, they were also making Brute Force attacks on our remote communications port to try and breach the server so they could do anything from format the hard drives to change ownership of the site, and bombarding the mailserver with similar bogus requests, some of which left some rather telling details behind.  This was followed up a couple of days later with a further attack that left more data to sift through, which we have passed on to our IT forensics people.On the advice of our Lawyer and fellow member JohnT, we yesterday informed the National Crime Agency and requested their assistance with the matter, and in an ongoing dialogue with them to find the culprits, so we are allowing them access to the server and its logs.    We don't believe that this is a random attack on balance, but for 5 days and a further evening we had to put up with some disturbance and interruption to the usually fast response of the website as we are seeing now that the attack has ended.  We will prevail, and don't worry about it.  We were the target, and these people will not win.  Karma will catch up with them   Mike, Greg, Dave & Julien.
Anders_Isaksson

Spitfire Vb Rotol propeller blades

11 posts in this topic

I'm currently assembling and painting the propeller (I believe it's the Rotol type) for my Tamiya Spitfire Vb Trop build and was wondering how to depict worn propeller blades.

This is how the blades look (work in progress...):

spitfirevbtrop063.jpg

Am I correct that the blades are made of wood on this particular type of propeller? I seem to remember having read this somewhere but can't find the information now, and a search on this forum didn't give me any further clues on this matter.

Thanks in advance for any help. :)

Cheers,

Anders

Share this post


Link to post
Share on other sites

Think you're right Anders, they were made from wood. Not 100% sure though, someone more informed will probably give you a definitive answer.

Edited by Doug Rogers

Share this post


Link to post
Share on other sites

Rotol props were made of three types of wood, Jablo, Hydulignum, or Weybridge Wood. Although it's a bit simplistic, because each type varied a little, the basic construction for each blade was layers of wood, glued together, while being compressed to about half their original thickness, before being shaped. Some had the wood encased in a sheath of fine mesh, and all had their leading edges covered by a thin sheath of brass. The whole lot was then covered in a semi-matt black plastic, Rayoid, Rotaloid, or Schwartz. In time, the plastic weathered, becoming matt, in some areas, and the leading edge could become abraided, allowing the brass to show through. The props were never allowed to weather/wear to the point that the wood showed through; they went for repair long before that point was reached.

Edgar

Share this post


Link to post
Share on other sites

Doug, Edgar and greatgonzo, many thanks for the replies - very useful information indeed! :)

I will go for a weathered (faded) black then, with perhaps a hint of brass showing through in places along the leading edges.

But definately no chipping all the way down to the wood as per my original plan.

Great pic showing the brass sheet along the leading edge of the blade. Perhaps I can capture that look with some creative painting... will have to see what can be done.

Thanks again!

Cheers,

Anders

Share this post


Link to post
Share on other sites
By the way. Was the early Rotol used for Mk IIs not made out of metal?

Yes the Rotol blade used in relatively small numbers on the Mk I and then in much larger numbers on the Mk II was made of a magnesium alloy (Rotol blade RA640). At some point during Spitfire Mk II production Rotol switched to a wooden blade (RA675), but I don't how many of each type were made.

Although not used on the Spitfire, some later Rotol blades were made from aluminium alloy, but from about 1941 onwards most of their blades were wood based.

DP

Share this post


Link to post
Share on other sites
By the way. Was the early Rotol used for Mk IIs not made out of metal?

And if you're interested in modelling Rotol propellers for Spitfire Mk IIs have a look at the 3D-Kits.co.uk site, as it's a new supplier starting up that may have something to interest you.

Share this post


Link to post
Share on other sites
And if you're interested in modelling Rotol propellers for Spitfire Mk IIs have a look at the 3D-Kits.co.uk site, as it's a new supplier starting up that may have something to interest you.

Looks interesting. Guess it is time to snag yet more new Airfix Spitfire I kits. :)

Share this post


Link to post
Share on other sites

I never cease to be amazed by the depth of knowledge of people on this site. Just fascinating.

Share this post


Link to post
Share on other sites
Rotol props were made of three types of wood, Jablo, Hydulignum, or Weybridge Wood. Although it's a bit simplistic, because each type varied a little, the basic construction for each blade was layers of wood, glued together, while being compressed to about half their original thickness, before being shaped. Some had the wood encased in a sheath of fine mesh, and all had their leading edges covered by a thin sheath of brass. The whole lot was then covered in a semi-matt black plastic, Rayoid, Rotaloid, or Schwartz. In time, the plastic weathered, becoming matt, in some areas, and the leading edge could become abraided, allowing the brass to show through. The props were never allowed to weather/wear to the point that the wood showed through; they went for repair long before that point was reached.

Edgar

Edgar,

Great info as usual. Reading the above, is it reasonably safe to say that these props were, effectively. unpainted black plastic, with painted yellow tips? I knew the blades were coated in a plastic sheath, but I hadn't really considered the possibility that they were supplied in a black colour and might not require painting.

Edited by Steve in Ottawa

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now