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Search: Posts Made By: One Eighth Air Force
Showing results 1 to 25 of 39
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Forum: Scratch Building, Aircraft Design, 3D/CAD
08-20-2005, 10:17 PM
Replies: 13
Views: 1,676
Posted By One Eighth Air Force

RE: How do you balance a canard?

What you say makes perfect sense, I was just hoping for a general rule of thumb. With a conventional plane layout, the CG should be between 25 and 33% back from the leading edge of the wing(at the...
Forum: Scratch Building, Aircraft Design, 3D/CAD
08-20-2005, 04:21 PM
Replies: 13
Views: 1,676
Posted By One Eighth Air Force

How do you balance a canard?

I'm in the process of designing a Curtiss XP55 Ascender. Does anyone now how you're supposed to balance a canard?
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-26-2005, 12:37 AM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Well done! Scratch building is what it's all about. Any one can build an ARF, and most people can build a kit; but only a few of us can scratch build. Let us know how she flies.
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-13-2005, 04:43 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

I usually set mine up at 0-0, that's what trim tabs are for. After a couple of flights, you may want to add some shims or washers between the motor mount and fiewall. Depends on how much trim you...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-06-2005, 08:24 AM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

I'ts getting there. Here comes the tedious part of the build, the sanding and filling and sanding and filling and sanding and filling ....
Is the "canopy" a solid piece of balsa? If it is, I would...
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-06-2005, 08:15 AM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Go with a 7X5. That's what the instructions I got with my GP10 reccomended.
Forum: Scratch Building, Aircraft Design, 3D/CAD
06-01-2005, 09:17 AM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Acording to the Manufacturer, the GP-10 weighs 162g/5.71oz but they don't say if that includes the muffler.
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-31-2005, 04:06 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Wow, learn somethin' new every day. That GP.10 is a great little engine. Once you get the carb adjusted right, it has a nice idle and good throttle response. My Stormovik can do just about every...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-31-2005, 03:30 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

You're kidding right? I've been building models since 1968 and have never heard of anyone covering a model with brown paper and carpender's glue. I would strongly recommend against that covering,...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-18-2005, 08:24 AM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Thanks, did you notice the pilot? I got the plans for the GeeBee model D in two sizes, the 42" span shown in the pic and a 54" span, .40 size. The little one turn out so good, I decided to scale her...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-17-2005, 04:47 PM
Replies: 16
Views: 2,410
Posted By One Eighth Air Force

RE: Building kit from plans; Stupid questions 101

When glueing paper patterns to wood, use 3M Spray Mount Artist Adhesive and follow the directions for Repostionable bolds. This stuff works like the glue on Post-It Notes. Don't spray the wood...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-17-2005, 03:53 PM
Replies: 8
Views: 878
Posted By One Eighth Air Force

RE: question on wing washout / in

The washin is probably acting like dihedral to some extent. Just don't get anywhere close to the stall speed of that thing.
I usually design in 4 degrees of washout in my models. I find that a +3...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-17-2005, 03:11 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

Sorry,
My fingers got tangled up. I meant to say I would go NO bigger than a .15 in a 42" span model.
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-17-2005, 03:07 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

A .46 is way too much engine for a 42" span model unless you're looking to be able accelerate straight up. Think about it, 42" is just barely bigger than 1/2A. I've got a GeeBee Model D and a...
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-17-2005, 02:31 PM
Replies: 46
Views: 4,637
Posted By One Eighth Air Force

RE: 42"wingspan p51d what size engine?

How bout this one. 48" span weighs 4lb. 12 oz and flies just great with a .25.
Forum: Scratch Building, Aircraft Design, 3D/CAD
05-09-2005, 11:38 AM
Replies: 3
Views: 674
Posted By One Eighth Air Force

RE: need help to enlarge plans %%%%%

You realize by enlarging the plans that way, you're changeing wood sizes. 3/32" balsa becomes aprox. 3/16", 1/4" ply becomes 7/16" thick. Unless you are going to use the enlarged plans for the...
Forum: Scratch Building, Aircraft Design, 3D/CAD
04-17-2005, 11:04 PM
Replies: 7
Views: 4,219
Posted By One Eighth Air Force

RE: WING JIGS!!!

I used to use a jig as descripe but have found a better way (my opinion). The problem with most wig jigs is they support the ribs. If you've ever seen a full size aircraft being built, you would see...
Forum: Scratch Building, Aircraft Design, 3D/CAD
04-14-2005, 10:33 PM
Replies: 13
Views: 960
Posted By One Eighth Air Force

RE: drawings of servos?

Here's a drawing I made of Futaba Servo's. This is a standard, a micro and a retract servo. I measured my servoes with a dial caliper, accurate to 1/1000of an inch, and drew them. They are drawn full...
Forum: Scratch Building, Aircraft Design, 3D/CAD
03-21-2005, 03:20 PM
Replies: 5
Views: 1,110
Posted By One Eighth Air Force

RE: Autocad Printing

Since most printers will not print all the way to the edge of the paper, here is what I suggest. Open the file and set up a layer that will not print. Draw an 7.5" x 10.5" rectangle starting in the...
Forum: Scratch Building, Aircraft Design, 3D/CAD
03-21-2005, 02:22 PM
Replies: 9
Views: 849
Posted By One Eighth Air Force

RE: How do cut your balsa?

I recommend a Riobi 9" band saw with a fine blade. I invested $99 in one about 2 years and it has really paid off. I was at a Home Depot the other day and they're still selling for $99. I also use it...
Forum: "1/2 A" & "1/8 A" airplanes
03-21-2005, 02:03 PM
Replies: 184
Views: 35,656
Posted By One Eighth Air Force

RE: Pictures of 1/2 A planes

Never flown the Quickie. It's been so long ago, the only thing I remember about building it is "What a completly absurd way to build a wing". It has a wing loading of over twice that of any of my...
Forum: "1/2 A" & "1/8 A" airplanes
03-16-2005, 10:24 AM
Replies: 184
Views: 35,656
Posted By One Eighth Air Force

RE: Pictures of 1/2 A planes

Only the "F-8 Crusader" look-a-like and the semi-copy of the Ace Upstart are my designs. I got the three views for the Stinson Station Wagon and designed two sets of plan. This one is 1/10th sacle...
Forum: "1/2 A" & "1/8 A" airplanes
03-13-2005, 01:42 PM
Replies: 184
Views: 35,656
Posted By One Eighth Air Force

RE: show us your 1/2 A models

And here are some more.
Showing results 1 to 25 of 39
 
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