|Dec 01, 2010, 03:21 AM|
....ALCHEMY..... To all you wizards out there!!
So, how do you make gold from "nothing"?
How do I get her to look good and fly??
I have some ingredients at hand....
- Reno Racer type visuals
- PPS references
- Hi performance wing and flight requirements
- Bat Mobile
- Dutchy Dawg styling
- Elementary building skills
- Little or no understanding of technical mechanics of flight!
This list may be expanded as we go along....
The intention is to see if I can add all the ingredients together,
If there are any wizards out there,
That understand the art of Alchemy....
That may help this newb wizard,
Please add to my cauldron for a merry brew!
She will be a slope plane!
|Dec 01, 2010, 04:03 AM|
|Dec 01, 2010, 04:54 PM|
[QUOTE=flyonline;16702574]Looks kinda like....
Erm, hu. yes....
Item 5 of the above ingredients!!
Just love that thing!
And as DD will never send me a fuz....
She'll make a fun flier!
|Dec 01, 2010, 05:25 PM|
|Dec 02, 2010, 02:52 AM|
This is where my inadequacies show....
I have built planes of my own creation, only to find they fly like pigs!!!
This is where you guys come in!!
But left to my own devices, I have to use reference to other planes I have built or know their characteristics of.
To a certain degree, I am working on the assumption that the fuz is only the mechanism of keeping the wings and tail feathers apart...
What is the golden rule in this regard????
There must be a proportion of measurement....
I may use an adapted "Jart" wing section (6062 @ 8%)
or the RG14...
As you can see there are more questions than answers!
Sooo, I'll just carry on pen shaping the fuz!
I still have to work on it a bit.....
At this stage Steve, it's just doodling, but I can put it in cad.
|Dec 02, 2010, 01:06 PM|
So I better stop looking at pretty pictures and get down to the nitty gritty!
How does it work?
For the 1st time, I find myself realizing that I don't really know much about putting it all together myself!
So in an attempt to set it all straight...
Dived into the research pages and......
Found some pointers:
( I did not realize you were so well versed Steve)
1. Decide on basic parameters (span, AUW, wing loading, required performance - e.g. aerobat, DS etc)
2. On paper,design layout, size tail, fin etc using Plane Geometry
3. Select appropriate Cl, Re and air speeds for plane (e.g. landing, normal AUW, ballasted)
4. Choose a selection of foils that you think match required performance and compare with Profili
5. Choose top 2 or 3 performing airfoils matching required Cl and Re's
run design through XFLR5 with each of the foils
6. Match airfoil(s) that perform best across the span
7. Compute CG
I'll start at the beginning and work my way through!
(How difficult can it be!)
|Dec 02, 2010, 03:14 PM|
Actually, the Plane Geometry program is a great deal for the $$, though now I would get the Link Geometry too. I found that by putting in some planes that you have already flown and know well, you can get some handle on the numbers and what they represent.
I also use XFLR as I find it easier to compare multiple airfoils quickly, but Profili will do exactly the same thing.
|Dec 03, 2010, 11:14 AM|
To passion add large measures of patience and persistence.
Also look up a thread by Nauga for more calcs.
If you haven't already, look up some of Dutchy's threads, he is willing to abandon huge amounts of work if it doesn't "look" right.
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