I believe the first Schweizer with an automatic throttle governor is the 300CBi, whereas all Robinsons have a governor.

Governor automatically changes engine power to maintain rotor RPM as collective ( main rotor blade pitch) changes.

Can you ignore the 12 year on an R44 if nothing is timed out Part 91. Lots of 800 hour 11th year R44s for cheap.

The BO-105 definitely burns 50 GPH, I one I flew was around 350PPH.

I owned a ‘96 300C for a few years. Fun little helicopter if cross country flights isn’t a common mission, they are slow. The C has an angle valve high CR (10:1) IO360 spinning at 3200 if memory serves, will produce something like 220 hp at full snort. It is “derated” to 190 hp by limiting the MP by a mark in the gauge. The net result is about 5k foot altitude boost in performance, very nice when flying in the mountains, or on a high DA day.

Fun little helicopter, the extra power made the difference, never had any problem even with both fuel tanks full and a couple “corn-fed” pilots, even on a warm day. Never flew the CB or the CBi, but I would think twice about the lower powered birds unless I was primarily doing training.

Jeff

I believe it's hardcoded in the type certificate.

If it says 'time remaining' for something like the 'tailboom' or 'MR mast', does it mean those parts get tossed or is there an overhaul/testing process ?

It depends. Some are life limited some can be OH. The mast is usually chunk it. Have you thought about a Hiller?

I believe it's hardcoded in the type certificate.

Not universally true for Robinsons, at least it didn't used to be. When I started flying them in the early 90s, 95% of the R-22s I saw (all Betas) only had a mechanical "correlator", and there was still a good amount of throttle twisting going on. The one R-22 that had the optional "governor" really wasn't anything of the sort. It was more like an autothrottle that moved the throttle under your hand vs behind the scenes. You could override it if you gripped hard enough. I don't think governors became standard on the R22 until the Beta 2.

Best,
Rich

As mentioned earlier in the thread a correlator is a completely mechanical connection where throttle is increased/decreased as you add/remove collective.

The I was flying locally was a 2001 300CB, I got checked out in a 199X 300CB converted to a CBi. Both had mechanical correlators which required a reasonable amount of pilot input to keep the RPMs in the green.

Interesting thing as an airplane pilot I used to think of density altitude primarily an as aerodynamic effect. My normally aspirated helicopter has taught me that engine power vs. density altitude is as much if not more important. Just never thought about it in my plane with the throttle to the firewall.

My '47 has a correlator as well and is VERY good however, high density altitudes require leading with more throttle.

Glenn

R44. Simple in terms of helicopter maintenance, plenty of power. Low time is more important than the calendar. 2200/4400/6600 it HAS to be overhauled, whereas a 12 year just needs blades. Blades +/- $50k for new.

I did my 5 flight training hours last year in a 300 ....... then I checked on renters insurance before my solo (never happened)
The lowest was $7,500 year. Pretty steep for no more than I would fly. $300 per hour with or without instructor.

Your friend needs to watch this.

[youtube]https://youtu.be/ffEYqGGYXRk[/youtube]

Guessing somewhat similar hull values but that's almost double what I paid for my '47 during training.

If they didn't want you to fly it solo, they should have just said so. Did anybody actually get their license there?

Glenn

Not many of those around outside of museums.

Flew the 222 and the BO and did some Widgeon formation flying coming home.