OK. Can someone give me something concrete on why the R66 is a bad trainer? I understand that they had a higher vulnerability to Mast-Bumping, but that was addressed with the empennage redesign in 2023. I've been in these helos. They fly well, have plenty of power, and have modern avionics (G500 with a GTN750). What am I missing?
Well, since I started this complaint I’ll offer my OPINION.
1. T-bar cyclic is different from everything else in the service. Yes, I know, it only takes a little while “to get used too,” but how will that translate when a student jumps to the TH-73? My consideration is that the control system is different and actually feels different.
2. The rotor system. The new empennage should aid the issue but does not alleviate it.
3. Most importantly, the weight. The thing that makes Robby’s so popular (and inexpensive) is that they have shaved off every possible pound. At an empty weight of just under 1300 pounds, it is too light to be an effective training helicopter for military purposes. Put it up on a windy day, and you are fighting all the way because it just gets tossed around.
In 2025 alone there have been four or five R66 crashes that have killed five people and injured four or five. I’m not an engineer, aviation crash investigator, or test pilot. I bow to the superior hours and experience others here absolutely have over me. I even think the R66 is a fine, little, tour machine - but it is not suitable for the demands of military training, especially for aviators heading to machines that weigh 15,0000 pounds or more empty. Again…his is just my opinion.