| Query | User |
|---|---|
| carbon landing gear | entered by user 1299075 |
| electric helicopters | entered by user 7150581 |
| electric helicopters | entered by user ditto |
| homemade helicopters | entered by user 8144780 |
| how to build a nicad charger | entered by user 9236820 |
| lipo balanced vs. unbalanced | entered by user 7315695 |
| rotary flight school | entered by user 4602260 |
| vacuum pump | entered by user 6365097 |
| vacuum pump | entered by user 7725408 |