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Hello,
I've been sitting on plans for a 4-place for a number of years. I need to get past a few blockers and get this thing moving. Could I ask a few questions?
On page 17B, I'm having trouble finding critical dimensions.
image.png
Specifically, the vertical height of these locations in the green circles.
1. vertical height of the point above B in reference to datum
2. Vertical height of S in reference to datum
3. Vertical height of point above D in reference to datum
4. Reading Eric's build manual, it appears the door sill must be 15" from the intersection above B to S and parallel with the lower longeron. I'm not finding that figure in the dimensions on the plans?
5. (See #2 above) There's a dimension for C-S that appears to show the distance from C to S as 8" on page 19B below:
image.png
What's not clear to me is if 8" represents the flat distance from C to S, or the vertical distance from the bottom longeron perpendicular to S which is a longer leg of the right triangle since C-S is at an angle. Since this is a station plane diagram, I feel like S is exactly 8" in height above the bottom longeron, not the distance from C to S which is undocumented as an exact length. I don't know how to interpret this one without asking. Any thoughts on what I'm looking at (length of material, or height of station above datum)?
6. As I am now searching for the lean-back angle of C-S in reference to the lower longeron, I can see plans page 31B which references the flap handle (no screenshot here) and I can take a pro-tractor the old fashioned way for the angle. Ideally, I'd like to use CAD and get the right inputs and validate with a protractor.
On page 29B, it shows the control stick mount where C-S is perpendicular to the S-D support diagonal at apparently a right 90' angle. The original side view of the fuselage in my first screenshot certainly does not appear that this is a 90' right angle. I can mock this up with CAD using this 90' degree angle and work the problem, but I need to constrain either the length of C-S or height of S as 8" from lower longeron, whichever is accurate. -see question 5.
image.png
7. Another question, what are the horizontal dimensions in respect tot he center line for locating these diagonal intersections on C-S? I don't see them referenced anywhere in the drawings for the B model. Is this critical, or eyeball it?
image.png
8. I have the same problem locating the dimensions for the top frame layout between P and O on page 18B. I'm not sure this part really makes a lot of difference, but i'll ask.
Thanks!
James
I've been sitting on plans for a 4-place for a number of years. I need to get past a few blockers and get this thing moving. Could I ask a few questions?
On page 17B, I'm having trouble finding critical dimensions.
image.png
Specifically, the vertical height of these locations in the green circles.
1. vertical height of the point above B in reference to datum
2. Vertical height of S in reference to datum
3. Vertical height of point above D in reference to datum
4. Reading Eric's build manual, it appears the door sill must be 15" from the intersection above B to S and parallel with the lower longeron. I'm not finding that figure in the dimensions on the plans?
5. (See #2 above) There's a dimension for C-S that appears to show the distance from C to S as 8" on page 19B below:
image.png
What's not clear to me is if 8" represents the flat distance from C to S, or the vertical distance from the bottom longeron perpendicular to S which is a longer leg of the right triangle since C-S is at an angle. Since this is a station plane diagram, I feel like S is exactly 8" in height above the bottom longeron, not the distance from C to S which is undocumented as an exact length. I don't know how to interpret this one without asking. Any thoughts on what I'm looking at (length of material, or height of station above datum)?
6. As I am now searching for the lean-back angle of C-S in reference to the lower longeron, I can see plans page 31B which references the flap handle (no screenshot here) and I can take a pro-tractor the old fashioned way for the angle. Ideally, I'd like to use CAD and get the right inputs and validate with a protractor.
On page 29B, it shows the control stick mount where C-S is perpendicular to the S-D support diagonal at apparently a right 90' angle. The original side view of the fuselage in my first screenshot certainly does not appear that this is a 90' right angle. I can mock this up with CAD using this 90' degree angle and work the problem, but I need to constrain either the length of C-S or height of S as 8" from lower longeron, whichever is accurate. -see question 5.
image.png
7. Another question, what are the horizontal dimensions in respect tot he center line for locating these diagonal intersections on C-S? I don't see them referenced anywhere in the drawings for the B model. Is this critical, or eyeball it?
image.png
8. I have the same problem locating the dimensions for the top frame layout between P and O on page 18B. I'm not sure this part really makes a lot of difference, but i'll ask.
Thanks!
James
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