OpenMDAO/Aviary

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NASA's aircraft analysis, design, and optimization tool

Stars: 287
Forks: 140
Open beginner issues: 0
Indexed issues: 159
Avg merge: 6d 14h
Merged PRs (30d): 18

Dominant language: Python
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

159 open issues indexed

Add bounds for metadata Open

request

Difficulty 5/5 Over a week Newbie friendliness 42/100

OpenMDAO/Aviary#1300 · Opened Sep 14, 2026
Preprocessor unittests Open

request

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1297 · Opened Sep 8, 2026
Add deprecation warnings for all variable hierarchy name changes since 1.0. Open

documentation request

OpenMDAO/Aviary#1289 · 5 comments · 1 assignee · Opened Aug 31, 2026
Nacelle physical dimensions do not scale with Engine.Scale_Factor Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

OpenMDAO/Aviary#1281 · Opened Aug 25, 2026
Add support for specifying Sidewall Length (XLW) in the BWB input csv. Open

request

Difficulty 3/5 1-2 days Newbie friendliness 52/100

OpenMDAO/Aviary#1275 · Opened Aug 21, 2026
Many reports do not run when using run_model Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

OpenMDAO/Aviary#1269 · Opened Aug 18, 2026
Add FLOPS Tail Sizing Tail Volume Coefficients Subsystem Open

request

Difficulty 4/5 3-5 days Newbie friendliness 55/100

OpenMDAO/Aviary#1265 · Opened Aug 17, 2026
Remove `get_option_defaults` Open

good first issue request validation

OpenMDAO/Aviary#1251 · 1 comment · 7 assignees · Opened Aug 4, 2026
It is too easy to forget to pass an extended metadata dictionary into the AviaryProblem. Open

request

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OpenMDAO/Aviary#1247 · Opened Jul 23, 2026
Move reasonable values logic out of fuselage component Open

request

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OpenMDAO/Aviary#1237 · Opened Jul 15, 2026
Move seat variables into better location in hierarchy Open

good first issue

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OpenMDAO/Aviary#1236 · 1 comment · Opened Jul 15, 2026
Help users convert unconverted values Open

documentation request

Difficulty 3/5 1-2 days Newbie friendliness 64/100

OpenMDAO/Aviary#1234 · Opened Jul 15, 2026
Combine split util files Open

code cleanup

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenMDAO/Aviary#1231 · Opened Jul 14, 2026
Replicate FLOPS VAPPR behaviour Open

request

OpenMDAO/Aviary#1222 · 2 comments · 1 assignee · Opened Jul 7, 2026
SubsystemBuilder does not allow options specification Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

OpenMDAO/Aviary#1220 · 1 comment · Opened Jul 7, 2026
Add vehicle efficiency metrics Open

request

Difficulty 3/5 1-2 days Newbie friendliness 55/100

OpenMDAO/Aviary#1199 · Opened Jun 17, 2026
Replace GRAV_ENGLISH_LBM Open

OpenMDAO/Aviary#1195 · 2 assignees · Opened Jun 12, 2026
Search for and replace hardcoded constants that don't use `constants.py` Open

code cleanup

OpenMDAO/Aviary#1193 · 5 assignees · Opened Jun 11, 2026
Move mass_per_flight_crew to Aviary variable Open

Difficulty 2/5 1-3 hours Newbie friendliness 64/100

OpenMDAO/Aviary#1190 · Opened Jun 10, 2026
Need checks of number of engine locations Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

OpenMDAO/Aviary#1189 · Opened Jun 10, 2026
Implement Analytic derivatives for (BWB)DetailedWingBendingFact Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1188 · Opened Jun 10, 2026
Rewrite the reports to support multimission Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1186 · Opened Jun 9, 2026
drag for excrescences per component for FLOPS based aero Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

OpenMDAO/Aviary#1184 · Opened Jun 9, 2026
FLOPS based main gear length needs review Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenMDAO/Aviary#1183 · Opened Jun 9, 2026
Aircraft.Design.CHARACTERISTIC_LENGTHS should be removed from metadata Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OpenMDAO/Aviary#1182 · Opened Jun 9, 2026
Need alphabetization test on dynamic variables Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

OpenMDAO/Aviary#1181 · Opened Jun 8, 2026
Update temp line that is used to ignore dynamic mission variables Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OpenMDAO/Aviary#1180 · Opened Jun 8, 2026
Check if we need a code block in setup_trajectory_params() Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

OpenMDAO/Aviary#1179 · Opened Jun 8, 2026
variables_to_add is required when calling setup_trajectory_params Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OpenMDAO/Aviary#1178 · Opened Jun 8, 2026
Modification in setup_model_options() needed for multi mission/model Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

OpenMDAO/Aviary#1177 · Opened Jun 8, 2026
Override a variable if user wants to override one of variables in both FLOPS and GASP geometry are present Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

OpenMDAO/Aviary#1176 · Opened Jun 8, 2026
Need get a list of options per engine so custom multiengine works Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

OpenMDAO/Aviary#1175 · Opened Jun 8, 2026
Use lists and functions to add tabs Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

OpenMDAO/Aviary#1174 · Opened Jun 8, 2026
CG and inertia calculations Open

epic

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenMDAO/Aviary#1168 · Opened Jun 3, 2026
Fortran-to-Aviary refactor Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1162 · Opened May 29, 2026
User input handling overhaul Open

epic

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenMDAO/Aviary#1161 · Opened May 29, 2026
Update all hardcoded refs to dynamic values Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

OpenMDAO/Aviary#1159 · 1 comment · Opened May 29, 2026
Overrides for post-mission (and mission?) components Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1145 · Opened May 15, 2026
Replace json file output with csv file Open

OpenMDAO/Aviary#1140 · 2 comments · 4 assignees · Opened May 13, 2026
Usage of None in AviaryProblem and SubsystemBuilder Open

code cleanup

Difficulty 5/5 Over a week Newbie friendliness 30/100

OpenMDAO/Aviary#1135 · Opened May 11, 2026
Add functionality for 'analysis' modes that do not involve mission trajectory optimization Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1129 · Opened May 5, 2026
Stop `get_path` from "autocompleting" filenames Open

code cleanup user interface

Difficulty 4/5 3-5 days Newbie friendliness 50/100

OpenMDAO/Aviary#1118 · Opened Apr 29, 2026
Immutable metadata Open

code cleanup

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1117 · 1 comment · Opened Apr 29, 2026
Max or min values in metadata Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

OpenMDAO/Aviary#1108 · Opened Apr 27, 2026
GASP engine pod mass definition does not match FLOPS Open

code cleanup

Difficulty 5/5 Over a week Newbie friendliness 35/100

OpenMDAO/Aviary#1107 · Opened Apr 27, 2026
Investigate slow tests and benchmarks. Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 48/100

OpenMDAO/Aviary#1105 · Opened Apr 27, 2026
Include estimation for baseline (unscaled) mass Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

OpenMDAO/Aviary#1097 · Opened Apr 16, 2026
FLOPS nacelle mass not properly using distributed thrust factor Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

OpenMDAO/Aviary#1096 · Opened Apr 16, 2026
FLOPS-based additional engine mass does not support multi-engine Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

OpenMDAO/Aviary#1095 · Opened Apr 16, 2026
Add aircraft type and other options to FLOPS landing gear mass Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

OpenMDAO/Aviary#1094 · Opened Apr 16, 2026

OpenMDAO/Aviary

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