Consideration of Tanker’s Wake Flow for Helicopter Air-to-Air Refueling

Loechert, Patrick; Schmidt, Sven; Jann, Thomas; Jones, Michael

doi:10.2514/6.2021-2561

Cited by 3 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using the transformation mechanism at a static rotation around the y-axis in the real-time simulation, nearly the same velocity components could be observed in Ref. 19. Therefore, the implementation of the transformation is found to be suitable to account for the tankers angle-of-attack.…”

Section: Flow Field Interferencementioning

confidence: 56%

“…For this flight condition, a CFD solution was determined in Ref. 19 and implemented within the simulation scenario as a time invariant wake.…”

Section: Simulation Development 31 Scenario Developmentmentioning

confidence: 99%

“…A more detailed description of the multi-body refuelling system including the parameter sets for both hose lengths can be found in Ref. 19. The influence of the tanker wake on the hose and drogue is also considered for the estimation of the drogue's position.…”

Section: Simulation Development 31 Scenario Developmentmentioning

confidence: 99%

“…20. Instead of rotating the entire flow field once prior to the simulation, only ACP relevant vectors are transformed [19]. This way, the interference model is prepared for rotational movements of the tanker in future work, even for larger flow fields.…”

Section: Flow Field Interferencementioning

confidence: 99%

See 3 more Smart Citations

Evaluation of a real-time simulation environment for helicopter air-to-air refuelling investigations

2023

View full text Add to dashboard Cite

The ability to perform air-to-air refuelling (AAR) can dramatically extend the utility of helicopters, through effectively providing unlimited range. For helicopters, AAR is typically performed utilising the probe-and-drogue aerial refuelling method. This is a complex manoeuver, where normally both the helicopter and tanker aircraft are operating at the limits of their flight envelopes. In addition, the wake flow from the tanker aircraft can cause a significant disturbance on the refuelling helicopter. This paper presents the initial evaluation of an AAR scenario constructed within DLR’s flight simulator, the Air Vehicle Simulator (AVES), based on current procedures and pilot interviews. A mission task was defined to assess the scenario in AVES and results are subsequently discussed. For pilots unfamiliar to formation flight or HAAR, the results show the difficulty of the flying task itself at the given cueing. Measures for improvement in future investigations are suggested.

show abstract

Section: Flow Field Interferencementioning

confidence: 56%

“…For this flight condition, a CFD solution was determined in Ref. 19 and implemented within the simulation scenario as a time invariant wake.…”

Section: Simulation Development 31 Scenario Developmentmentioning

confidence: 99%

Section: Simulation Development 31 Scenario Developmentmentioning

confidence: 99%

Section: Flow Field Interferencementioning

confidence: 99%

See 2 more Smart Citations