Thanks Milton.. Great find on the pic's.. And yeah. That triangle shape on its nose and its " Big ears" always made me think of a giant mouse..
I thought i'd paste this here in case anyone is interested.. Good reading..
http://www.nasa.gov/centers/armstron...-077-DFRC.html
Okay, we want to look for Jay Miller's book 'X-planes'. That's got a set of sections drawings for the X-3 that the R/C guys have been using. Probably out of print. I'm trying to see if any of the phuds I know have one, and want to do some scans. Nothing yet, but that narrows the search a bit.
Nope. Not out of print, just on its third edition and pricey is an understatement..Originally Posted by lazarus
https://www.amazon.com/X-Planes-X-1-.../dp/1857801091
Library and photocopier, then. I also saw it on google book preview, so I need to go find that again; hopefully they haven't 'blacked out' the page with the drawing.
we owe you one.. good luck..
Lazarus, if you can't afford buying, I will do it for you. Just tell me what you want, I'll pay that $ 51,-- or $ 55,-- for you and maybe they can send it directly to your home.
Regards, hertzie.
I have The X-Planes: X-1 to X-31, New Revised Edition by Jay Miller published in 1988 and there aren't any section drawings of the X-3. There is one relatively small three view drawing by Chuck Davis displaying top, port side and front views along with fourteen photos. The X-3 chapter is six pages long with the first page only containing the three view drawing and four photos. The remaining five pages contain both text and photos.
The X-Planes: X-1 to X-45, Third Edition published later may have the desired section drawings, but I would not necessarily assume so unless you have definitive information indicating that it does.
Mike M.
If Amazon is too expensive, try Abebooks:
https://www.abebooks.com/
Good prices and some titles you can't find anywhere else.
The first two photos are actually excellent modeling resources. Almost dead-on in the first one and the highlights and reflections on the second one help with getting the curves right.
Sectionals would make for speedier modeling, yes. But this doesn't look that nightmarish at all. Especially if you can dig out more of these photos.
Pam,
Some "light" reading :-)
X-3 Research Papers
Stability and Control Characteristics
https://www.ntrs.nasa.gov/search.jsp...7%2B4293939922
Flight Testing
http://ethw.org/First-Hand:Research_..._Sound_Barrier
Vertical tail Loads at Transonic Speeds
http://www.dtic.mil/dtic/tr/fulltext/u2/112360.pdf
Thank you Sue; that is so kind and thoughtful. I greatly appreciate that.
Bjoern,
It's not nightmarish to model, but to get it right would require cross sections.
The issue is not the front; it's the mid-section to end of afterburners.
Here's a few helpful tidbits ...
Your timing is perfect sir. Woke up unable to catch my breath this morning, and I still can barely breath so a bit of reading is perfect for today.. Thank you..
I will be in possession of the entire Test-Flight research reports by end of day. Please don't buy anything until I get back to you. It may contain what you need.12 PDF reports.
MACH 3 DESIGN STUDIO
Heatblur Rivet Counting Squad™
I was looking at that last night/this morning which is why i posted the pic from the paper airplane company. It shows the joint that defines ( my words arent so good right now.. sorry ) the section. If we remove the mouse ears Whats left is simply two opposing triangular cones fitted together. The mouse ears get added on to form the sides and define the engine tunnel. They are almost extraneous, and the flat sides of the plane are nearly an illusion..
What chaffes my hide, is that all these model companies that make plastic models, work directly from drawings such as you need. And they keep them locked away..
https://ntrs.nasa.gov/archive/nasa/c...9930090201.pdf
Figures have a better 3 view and Gear diagrams
https://ntrs.nasa.gov/archive/nasa/c...9930088730.pdf
Figure 3. 3 view shows additional engineering definitions angles and dimensions
Pam, I have them all now. 10 PDF's that are relevant.
All can be found here:
https://ntrs.nasa.gov/?N=0&Ntk=All&N...ollection|NACA
If this link doesn't bring up the search results. Search for "Douglas X-3"
All the info for EXACT AIR FILE creation are contained in the these research reports.
You're welcome! LOL
MACH 3 DESIGN STUDIO
Heatblur Rivet Counting Squad™
It will take awhile to get here from England. Let you know asap... Don't tell anyone I did something nice, you'll ruin my reputation.Thank you Sue; that is so kind and thoughtful. I greatly appreciate that.
LOL
Sue
Perfect.. Thanks Rick. I still remember how to do nested calculations within larger calculations, so maybe if i write everything out long form, I can make sense of it again..https://ntrs.nasa.gov/archive/nasa/c...9930090201.pdf
Figures have a better 3 view and Gear diagrams
https://ntrs.nasa.gov/archive/nasa/c...9930088730.pdf
Figure 3. 3 view shows additional engineering definitions angles and dimensions
Pam, I have them all now. 10 PDF's that are relevant.
All can be found here:
https://ntrs.nasa.gov/?N=0&Ntk=All&N...ollection|NACA
If this link doesn't bring up the search results. Search for "Douglas X-3"
All the info for EXACT AIR FILE creation are contained in the these research reports.
You're welcome! LOL
LOL Sue; the secret is safe with me, indeed. :-)
No hurry on the shipping; I know it takes 10-14 days for delivery.
I have the B-26 Marauder project to wrap up, and I have the FSX Native radial-based Grumman Mallard to complete, about 65% done now.
Well done Sir; thanks :-)https://ntrs.nasa.gov/archive/nasa/c...9930090201.pdf
Figures have a better 3 view and Gear diagrams
https://ntrs.nasa.gov/archive/nasa/c...9930088730.pdf
Figure 3. 3 view shows additional engineering definitions angles and dimensions
Pam, I have them all now. 10 PDF's that are relevant.
All can be found here:
https://ntrs.nasa.gov/?N=0&Ntk=All&N...ollection|NACA
If this link doesn't bring up the search results. Search for "Douglas X-3"
All the info for EXACT AIR FILE creation are contained in the these research reports.
You're welcome! LOL
You see, we think of airplanes and well, we think of what we know to be airplanes with everything in its standard position. This plane broke all the rules. the J-34 engines were below the reference atum line, but centered with center of lift, which is unusual compared to what we see in most aircraft made since then. The entire tail cone/empannage is the fuel tank, so now you have all your fuel well above the reference datum line and behind the CG. I remember studying one aircraft which had fuel tanks in the vertical stabilizer. I mean, this was the dawn of the jet age, and frankly, these guys didnt know how to design a jet. They were breaking new ground every day, and planes like the X-3, X-4 starstreak and others went a very long way into pioneering todays aircraft. The X-3 was perfect for what it did, as a result of its poor design. The J-42 jet engine that the X-3 was supposed to have had, never materialized and the planes primary role could not be fullfilled, but what it gave us has saved millions of lives over the years through better design engineering..
Perfect.. Thanks Milton
Pam,
Maybe you overlooked the very large fuel tank in the belly just behind the cockpit and below the AC section, and well forward of the CoL/CoG/MAC 25-75.
Since in the belly at the widest part of the fuselage, I'd bet that its capacity exceeded that in the tail section which was narrow but long.
"... the J-36 engines were below the reference atum line, ..."
My drawing shows the engines above the reference datum line. ???
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