Stolla
Senior Heliman
Location: Port elizabeth South Africa
| Dumb is a bold statement to make if you failed to notice that i did indeed find the cause of the problem.
If you read my post you would have noted that the cause of the problem is a resonance in the torque tube created by centrifugal vibrational force. How did i came to this conclusion? I flipped the t/tube around and the problem that showed in hover dissappeared completely up to 1750 headspeed. As you may have noticed the bearing is in an off centre position for this exact reason i.e. to prevent resonance, vibration and fatique according to the manual.
By flipping it around you change the wavelength of the vibration so it shows up differently.
How can you not compare different heli's, espescially if they are part of your own fleet. My statement may have been taken out of context a little in that i did not want to degrade a very nice heli, in fact there are quite a couple of items that i rate superior to my stratus. However my preference of a belt are shared by many due to simplicity low noise levels etc. But and this is important, the t/tube does work very well in a lot of heli's but there are issues with the vibe50, i base this opinion on the many posts regarding tail problems.
If this was not a general problem discussed in depth I would have had a different approach in that my observation would have been based on my own experience, hence my reaction would have been different.
I don't mind fixing a problem but i will definately voice my displeasure when a brand new heli needs modifications to perform satisfactorily.
I have to ask the question why I can buy a basic raptor 50 off the shelve put it together in a day and go fly with no issues whatsoever, then you "upgrade" to amore expensive"superior" heli and suddenly issues arise where you have to modify your new kit to get it to perform to expectation. As the vibe is a new design my tolerance levels are high espescially since the rest of the heli is superb.But JR needs to fix this and probably will, this can only happen if they get feedback, positive and negative!
Common sense may not be common after all |
