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Ultralight and Very Light Helicopter Rotor Data

Transactions on Aerospace Research
Volume 2023 (2023): Issue 2 (June 2023)
By:
Open Access
|Jun 2023

Figures & Tables

Figure 1.

The small weighted helicopter. (A) Single-rotor helicopter ranabot CH-77 (Italy), MtOM-500 kg, (B) coaxial helicopter rotorschmiede VA-250 (Germany), MtOM-500 kg.
The small weighted helicopter. (A) Single-rotor helicopter ranabot CH-77 (Italy), MtOM-500 kg, (B) coaxial helicopter rotorschmiede VA-250 (Germany), MtOM-500 kg.

Figure 2.

Dependence of discs loading on MTOM (1 – approximation curve for single rotor helicopters, 2 – approximation curve for coaxial helicopters, 3 – disc loading dependence according to [1]).
Dependence of discs loading on MTOM (1 – approximation curve for single rotor helicopters, 2 – approximation curve for coaxial helicopters, 3 – disc loading dependence according to [1]).

Figure 3.

Dependence of the main rotor diameter on MTOM (1 – approximation curve for single rotor helicopters, 2 – approximation curve for coaxial helicopters, 3 – rotor dependence according to [1]).
Dependence of the main rotor diameter on MTOM (1 – approximation curve for single rotor helicopters, 2 – approximation curve for coaxial helicopters, 3 – rotor dependence according to [1]).

Figure 4.

Dependence of the blade chord on MtOM (1 – approximation curve for two-bladed rotors, 2 – approximation curve for three-bladed rotors, 3 – approximation curve for three-bladed rotors according to [1] 4 – approximation curve for two-bladed rotors according to [1]).
Dependence of the blade chord on MtOM (1 – approximation curve for two-bladed rotors, 2 – approximation curve for three-bladed rotors, 3 – approximation curve for three-bladed rotors according to [1] 4 – approximation curve for two-bladed rotors according to [1]).

Figure 5.

Dependence of the rotor solidity on MtOM (1 – approximation curve for two-bladed rotors, 2 – approximation curve according to [1], 3 – the minimum value of the rotor solidity according to [3]).
Dependence of the rotor solidity on MtOM (1 – approximation curve for two-bladed rotors, 2 – approximation curve according to [1], 3 – the minimum value of the rotor solidity according to [3]).

Figure 6.

Dependence of the helicopter advance ratio on MtOM.
Dependence of the helicopter advance ratio on MtOM.

Figure 7.

Dependence of the blade tip speed on rotor diameter (1 – approximation curve, 2 – rotor dependence according to [1]).
Dependence of the blade tip speed on rotor diameter (1 – approximation curve, 2 – rotor dependence according to [1]).
DOI: https://doi.org/10.2478/tar-2023-0008 | Journal eISSN: 2545-2835
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Language: English
Page range: 17 - 24
Submitted on: Oct 28, 2022
Accepted on: Mar 2, 2023
Published on: Jun 12, 2023
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
ultralight helicopter,
main rotor,
blade,
preliminary design
Related subjects:
Engineering,
Introductions and overviews,
Engineering, other,
Geosciences,
Geosciences, other,
Materials sciences,
Materials sciences, other,
Physics,
Physics, other

© 2023 Vitaly Dudnik, Victor Karabut, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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