Addition of Fuselage Engine Modeling

[Dawson-Manning]

Summary

This commit increases Aviary's (version: 0.9.4-dev) functionality by adding statements to allow of the modeling of aircraft that only utilize fuselage engines. Previously modeling aircraft that only use fuselage mounted engines was not supported. This addition was checked with models that have no wing engines (2 fuselage engines), 2 wing engines (no fuselage engines), and 4 wing engines (no fuselage engines) and all optimized successfully. Before and after edit images attached.

Related Issues

• Resolves Issue #342

Backwards incompatibilities

None

New Dependencies

None

[Dawson-Manning]

Corrections made to fix failure of "test_wing_detailed.py:DetailedWingBendingTest.test_case_multiengine"