STRT flat oval requirements
- Last UpdatedAug 25, 2025
- 2 minute read
This topic describes the specification requirements for flat oval straight (STRT) components.
Catalogue requirements
Minimum requirements to select, place, and manipulate components.
Parameter descriptions
-
Parameter #1 = Width
-
Parameter#2 = Height
Data set requirements
For information about data set requirements that apply for all flat oval components, refer to Flat oval component requirements.
For The following requirements are in addition to the data references that are created for parameters.
|
KEY |
Type |
Description |
Default ( /Expression **) |
|
SHAP |
Expression |
Duct shape |
OVAL |
|
AARR |
Distance |
Width of arrive |
PARA[1 ] |
|
BARR |
Distance |
Height of arrive |
PARA[2 ] |
|
ALEA |
Distance |
Width of leave |
PARA[1 ] |
|
BLEA |
Distance |
Height of leave |
PARA[2 ] |
|
LENG* |
Distance |
Length |
2345 |
*Default value of LENG is customer specific and should be set to the standard supply length. Length can be edited in the component editor in the Model module. The No. property can be set to any value, and the other property values set as shown in the following graphic.

A data element with Key set to LENG is required for gap manager to function correctly in the Model module.
** Where the Default value is set to a parameter, the Expression value must be set to the same parameter. This is applicable for all component types.
P-point requirements
For information about P-point requirements that apply for all flat oval components, refer to Flat oval component requirements.
The following table shows the additional required P-points:
|
Type |
Connection Type (PCON) |
Bore (PBOR) |
Axis Direction (PAXI) |
PZ Axis (PZAXI) |
Point Width (PWID) |
Point Height (PHEI) |
PDShape attribute |
AllAngle attribute |
|
|---|---|---|---|---|---|---|---|---|---|
|
1 |
PTAX |
OVAL |
(RPRO AARR + RPRO BARR) |
-Z |
Y |
(RPRO AARR) |
(RPRO BARR) |
OVAL |
180 |
|
2 |
PTAX |
OVAL |
(RPRO ALEA + RPRO BLEA) |
Z |
Y |
(RPRO ALEA) |
(RPRO BLEA) |
OVAL |
180 |
|
61 |
PTMI |
0 |
0 |
Y |
unset |
unset |
unset |
0 |
unset |
|
62 |
PTMI |
0 |
0 |
Y |
unset |
unset |
unset |
0 |
unset |
|
63 |
PTMI |
0 |
0 |
Y |
unset |
unset |
unset |
0 |
unset |
|
64 |
PTMI |
0 |
0 |
Y |
unset |
unset |
unset |
0 |
unset |
Specification requirements
The following specification headings are required:
-
Type (TYPE)
-
Duct Shape (PSHA)
-
Duct Width (PWID)
-
Duct Height (PHEI)