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| Flexible mount data |
| A simple system for retrofitting rubber mounts where there is insufficient room for 'Lord' mounts. Note that no part of the engine or bolts is allowed to contact the fuselage directly. 2mm rubber sheet was used on the prototype. |
| Effectiveness of Lord mounts: Meaningful comparisons of rubber mounts vs no rubber mounts are difficult to achieve, given the need for remounting the engine in between tests. Aircraft: Wot 4 fuselage Engine: Super Tigre 45 ABC Silencer: Standard Propeller: 11x7 Graupner Mounting Noise RPM F L B R Without rubber mounts 83 81 78 84.5 10500 With rubber mounts 82 76 76 81 10300 |
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| The NR flexible mount. Lord mounts were used in between the mount and the bulkhead. |