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2 meter plans

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Old 03-11-2003, 12:13 PM
  #101
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Default 2 meter plans

Thats just how I did it. I agree it looks better than just a 90.
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Old 03-15-2003, 06:34 PM
  #102
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Default t2k progress

In the process of aligning the wing in order to secure the wing tube in the fusalage. A lot of fussing here trying to get the root rib to lay flat against the fuse and trimming the root ends of the sheeting and spars to allow it.

For me, this is not a fun process. I know it is critical, so I'm taking my time, taking frequent breaks and inventing new profanity to vent frustrations!

I'm using the procedure outlined in the book, "Builiding a Pattern Plane." It involves using a level as you can see, and a plumb line which can't be seen. The center line of the vertical stab/fusalage rear is aligned with the plumb line.
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Old 03-16-2003, 03:51 AM
  #103
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Default 2 meter plans

damn, you are hauling ass compared to how fast i build. It looks great too, nice work!
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Old 03-16-2003, 06:04 PM
  #104
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Default t2k progress: dumb, dumb, dumb

Anyone who has constructed a built up wing for this plane can see the stupid error I made in the last photo.

I spent hours trying to get everything lined up. When the wings were finally level and trammeled, the holes for the wing adjusters would not line up and it looked like I would not get proper wing incidence without doing some surgery. So I went to bed.

When I started on it again this morning, the problem hit me almost immediately. The wings are on UPSIDE DOWN! The sides showing are the sides that were showing while I built them to this stage, but they were being built upside down. I just got too used to looking at them this way. Even though they are symmetrical, all the tubes and mounting holes are not centered, so it does make a difference how the wings are mounted.

I flipped them over and had everything lined up and the wing tube in the fuse glued in, the root ribs tacked glued in place in about 15 minutes. Yesterday was wasted.

Am I the only one who makes errors as dumb as this?

I should be able to make pretty good progress from here on. I want to have this flying in May.
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Old 03-16-2003, 07:12 PM
  #105
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Default 2 meter plans

At the rate your going you'll probably have it in the air by April.
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Old 03-16-2003, 10:34 PM
  #106
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Default 2 meter plans

Hi
I am thinking of purchasing a set of T2000 plans and I was wondering how they right and down thrust are built inot the model?
Is it reasonably easy to get right with the tools you would find in your standard model workshop.

Mike
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Old 03-17-2003, 12:08 AM
  #107
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Default t2k progress

It doesn't look like much for a day's work, but I actually got quite a bit done.

Both wings are now about ready for the bottom sheeting. Today I cut the ribs to receive the aileron leading edges and wing trailing edges which I installed and shaped. I finished the aileron servo mounts and attached the bottom carbon fiber tape. Both are sanded for sheeting.

All that's left to do is install blocks for hooks in the root ribs for wing holding rubber bands, (I will actually use o-rings for this), and end ribs in the ailerons.

I've had enough for today...

For Mike : The right and side thrust are set by installing the firewall at the proper angles. It's not particularly difficult with ordinary shop tools. I used a long straight edge, a large protractor and high school geometry. The real "fun" is trying to get the engine mounted in the right place so the drive shaft will center in the cowl. That won't be a problem if you use the same engine and mount as on the plans: a YS 1.20 and Gator soft mount. The amount of offset is given for this on the plans.

You might consider contacting Gerald Williams (patternjunkie) at:
gw@gwair.com

he has a line on getting sheeted foam wings at a pretty reasonable price. I'll probably do that next time. The wings take a lot of time to build.
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Old 03-17-2003, 12:40 AM
  #108
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Default Re: t2k progress: dumb, dumb, dumb

Quote:
Originally posted by bokuda

Am I the only one who makes errors as dumb as this?
Uhhh, no. . . . I heard about this guy once. . . . well, he built a pattern plane and flew it a few flights. . . then another guy walked up and asked why they designed ANhedral into the wings. . .

I stepped back and looked. . . wait, it wasn't me!!. . . this other guy. . . . . HE stepped back and looked at it from the front and said "Yup, I meant to build the wings upside down. . . increases the airflow into the carburator giving the plane more power". . .
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Old 03-17-2003, 03:34 PM
  #109
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Default 2 meter plans

Thanks, Keith. I needed that.
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Old 03-23-2003, 12:13 AM
  #110
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Default t2k progress

Did not spend much time on it this week. Can't get up for it very often after work. I've got to try harder if I'm ever going to get it done for spring.

Got the stab tube and adjusters installed and the stab is aligned and mounted to the fuse. I'm building the elevators now. Next I will be installing the elevator linkage, then sheeting the elevators and stab.

Then I'll complete the wings.
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Old 03-23-2003, 04:47 AM
  #111
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Default Re: t2k progress

Quote:
Originally posted by bokuda
...

I'm using the procedure outlined in the book, "Builiding a Pattern Plane."

...
Could you tell me where you found that book and the ISBN number?

I tried searching Amazon.com but didn't get any hits.

Thanks.
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Old 03-23-2003, 05:23 AM
  #112
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Default 2 meter plans

The book is available here:

http://www.ranchcreek.com/airplane/
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Old 03-23-2003, 12:15 PM
  #113
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Default Re: t2k progress

Quote:
Originally posted by bokuda
I've got to try harder if I'm ever going to get it done for spring.
Here's a little motivation...she finished at 10lbs 4oz and is ready to fly. Any word on field conditions at HCRC?
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Old 03-23-2003, 11:33 PM
  #114
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Default t2k progress

Elevators complete with horn mounts installed.

Next: hinge elevators and install elevator linkage.
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Old 03-31-2003, 12:26 AM
  #115
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Horizontal stab sheeted on both sides. Ready for hinging and attaching/shaping tips.

I've also been working on installing the rudder and elevator servos and constucting the elevator pushrods.
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Old 04-01-2003, 12:32 AM
  #116
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Default Stab weight?

Bokuda,
What is the weight of your stab, at this point? And please let me know if you used all contest grade balsa.

Thanks, I am trying to get an idea of Built-Up vs. Sheeted Foam for a design I am currently working on.
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Old 04-01-2003, 02:47 AM
  #117
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Default t2k progress

Mounted the elevator and rudder servos tonight.

I'll have the weight of the stab tomorrow (4-1). A friend has borrowed my scale and I planned to pick it up tomorrow anyway.
I used all contest balsa on the stab. I'll post vertical stab/rudder weight too.
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Old 04-02-2003, 12:35 AM
  #118
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Default t2k progress

Well, actually no progress today, but I did weigh some parts as requested:

The horizontal stab/elevators weigh 4.4oz./124g. This includes the MK horns and the blocks for the tips which I have not yet attached or shaped. With the addition of hinges and the shaping of the tip blocks, I would guess another 3-4 grams will be eliminated.

The verical stab and rudder came in at 2 oz./58g. These are completely sheeted, but the rudder horns have not yet been mounted.

All is made of contest grade balsa.

I have no idea if these weights are light, heavy or average as this is my first pattern plane and I have never been this concerned with weight before. I'd be curious to know how these weights compare to others' including with the same foam parts.
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Old 04-02-2003, 12:36 AM
  #119
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Default t2k weights

Vertical stab/rudder.
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Old 04-02-2003, 06:02 PM
  #120
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Default 2 meter plans

GW,
Have you been able to get the laser cut ribs plotted yet? And are you still offering the formers laser cut? For the T2K.

I have been following this thread as I am looking to try my hand at flying pattern later this year.

I have also ordered and just received the book "Building a pattern plane". This is a must have book. It shows how to do all the simple stuff though total alignment of wings, stab, etc. Also a great chapter devoted to building a Typoon 2+2 (similar to 2000).

Thanks
Dave
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Old 04-02-2003, 09:08 PM
  #121
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Dave

I have not had a chance to plot the ribs yet.

Working on a new design for myself here lately, as well as trying to finish the CA Eclipse.


I have one set of formers left,

I just mailed out 2 sets Thursday.
1 to CA and 1 to NM.


This one set I have will probably be the last set I have for a while.so, If you want them, let me know, if not, I will put them on the shelf till someone speaks for them.


The book is a great instruction tool. All the techniques of the 2+2 will apply just the same to the 2000.
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Old 04-07-2003, 12:41 AM
  #122
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Default t2k progress

Got quite a bit done this weekend.

Completed and installed the elevator pushrods. Attached, shaped and rough sanded the horizontal stab tips. Prepared the wings for final sheeting and prepared the sheeting.

There will be a holdup on the rudder linkage. I intended to use (and have) the MK rudder horn, but it's not going to work out. I've got to get the other kind from Central.

This photo shows the Troy Newman style elevator linkage. I changed a few minor things to my liking. It's very stiff and light.
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Old 04-07-2003, 12:44 AM
  #123
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This photo shows the stab tips glued, shaped and rough sanded. One still needs to be trimmed and the trailing edge.
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Old 04-07-2003, 12:45 AM
  #124
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Showing the weight of completed stabs, less covering. 4.2 oz.
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Old 04-07-2003, 09:07 AM
  #125
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Default 2 meter plans

Bokuda
After building the wings and stabs the traditional built up way would you do it that way again or just go straight for balsa sheeted foam core?
Mike
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