21-02-2020, 06:55 PM
(This post was last modified: 21-02-2020, 07:22 PM by Mark Atkinson.)
Hello Ian,
Yes, that curious almost apple green on the surviving panel is my plan, probably not during this season though. I am also thinking of making a second, long tail, body, which if I do one or the other will be left in the clear doped linen, probably just for vanity, but I really do like the look.
It will be great to see you in 22, and if it works out, fantastic to see your car over here gracing the paddock.
All the best, Mark.
Hello Eric,
Doped Irish Linen coverings are really quite flexible, and also subject to rapid variations in tension due to temperature and humidity.
If you look at the wings of a modern airliner, you will see the considerable amount of 'flex' they go through, aircraft have always needed to deform in this way, in the early days of aviation, they also often used 'wing warping' as an alternative to hinged ailerons (flaps if you like) to induce roll by differentially altering the lift from the wings, this was achieved by taking additional advantage of the coverings flexibility - flight control and a resilient flexible structure all in one!
In respect of the weight, I did not weigh it, but guess about 30 lbs is probably about right for the wood frame, I did use mostly Ash for the structure, so that has possibly added weight. I am just looking at my phase two job of building a 'long tail' body for Slippery, my intention is that I will use Silver Spruce, with just a small amount of Ash for critical areas of the structure, such as attachment points. I imagine this approach will save several pounds of added lightness, of course the body of Slippery Anne is much smaller than any GE, save perhaps the JoJo cars!
All the best, Mark.
Yes, that curious almost apple green on the surviving panel is my plan, probably not during this season though. I am also thinking of making a second, long tail, body, which if I do one or the other will be left in the clear doped linen, probably just for vanity, but I really do like the look.
It will be great to see you in 22, and if it works out, fantastic to see your car over here gracing the paddock.
All the best, Mark.
Hello Eric,
Doped Irish Linen coverings are really quite flexible, and also subject to rapid variations in tension due to temperature and humidity.
If you look at the wings of a modern airliner, you will see the considerable amount of 'flex' they go through, aircraft have always needed to deform in this way, in the early days of aviation, they also often used 'wing warping' as an alternative to hinged ailerons (flaps if you like) to induce roll by differentially altering the lift from the wings, this was achieved by taking additional advantage of the coverings flexibility - flight control and a resilient flexible structure all in one!
In respect of the weight, I did not weigh it, but guess about 30 lbs is probably about right for the wood frame, I did use mostly Ash for the structure, so that has possibly added weight. I am just looking at my phase two job of building a 'long tail' body for Slippery, my intention is that I will use Silver Spruce, with just a small amount of Ash for critical areas of the structure, such as attachment points. I imagine this approach will save several pounds of added lightness, of course the body of Slippery Anne is much smaller than any GE, save perhaps the JoJo cars!
All the best, Mark.