2 meter plans
03-15-2003, 06:34 PM
#102
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.
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.
03-16-2003, 06:04 PM
#104
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.
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.
03-16-2003, 10:34 PM
#106
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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
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
03-17-2003, 12:08 AM
#107
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:
[email protected]
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.
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:
[email protected]
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.
03-17-2003, 12:40 AM
#108
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Re: t2k progress: dumb, dumb, dumb
Originally posted by bokuda
Am I the only one who makes errors as dumb as this?
Am I the only one who makes errors as dumb as this?
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". . .
03-23-2003, 12:13 AM
#110
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.
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.
03-23-2003, 04:47 AM
#111
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Re: t2k progress
Originally posted by bokuda
...
I'm using the procedure outlined in the book, "Builiding a Pattern Plane."
...
...
I'm using the procedure outlined in the book, "Builiding a Pattern Plane."
...
I tried searching Amazon.com but didn't get any hits.
Thanks.
03-23-2003, 12:15 PM
#113
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Re: t2k progress
Originally posted by bokuda
I've got to try harder if I'm ever going to get it done for spring.
I've got to try harder if I'm ever going to get it done for spring.
04-01-2003, 12:32 AM
#116
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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.
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.
04-01-2003, 02:47 AM
#117
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.
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.
04-02-2003, 12:35 AM
#118
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.
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.
04-02-2003, 06:02 PM
#120
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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
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
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.
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.
04-07-2003, 12:41 AM
#122
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.
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.
04-07-2003, 09:07 AM
#125
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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
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