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HeliTorque :: View topic - R22 POH
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HeliTorque Forum Index » Essential Reading, Viewing & Browsing

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R22 POH
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paddywak
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PostPosted: Sat Aug 22, 2009 8:15 pm    Post subject: R22 POH Reply with quote

Just reading through the pilots operating hanbook for the 22 and I cant find any mention of fuel burn rates or range. Have I got a duff copy, or is this info published elsewhere? Confused
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niho
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PostPosted: Sat Aug 22, 2009 9:10 pm    Post subject: Reply with quote

Looks like you don't have a duff copy:
Quote:
At the Robinson Factory Safety Course, we were told not to rely on the gauges: "Use your watch," the instructor said, suggesting that we keep track of flight time. "How many gallons per hour does the R22 burn?" a student asked, noting that there are no data for fuel consumption or range in the P.O.H. "We won't tell you that because it might not be right for your ship," was the reply.
(http://philip.greenspun.com/flying/robinson-r22)

My instructor said to use 9gph, and the robinson website for the r22 beta II (http://www.robinsonheli.com/r22main.htm) says: 7-10gph.

That said no idea where it would be officially published if anywhere...
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HeliCraig
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PostPosted: Mon Aug 24, 2009 7:01 am    Post subject: Reply with quote

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My instructor said to use 9gph.

Ditto.

Quote:
That said no idea where it would be officially published if anywhere...

I was told, and this may well be hear-say, that it isn't officially published anywhere in a more exact form than the 7-10 gph already mentioned to avoid litigation.

There are so many variables involved in giving an accurate figure (it can vary by day / environment etc) RHC decided not to specify an exact figure, even for a given set of atmospherics, to avoid being sued by people who later used this figure and ran out of fuel for some reason.
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haggishunter
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PostPosted: Mon Aug 24, 2009 9:01 am    Post subject: Reply with quote

Next time you are in your maintenance base ask to look at the engine manuals, I am pretty sure Lycombing have fuel fiqures for across the power range.

As Craig said, so many variables, carb heat especially has a big effect, cleanliness of blades, cyclinder compressions etc.

I use to use 7-8USG/HR for Beta and 9-10USG/HR for Beta 2.

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paddywak
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PostPosted: Tue Nov 10, 2009 9:50 pm    Post subject: Reply with quote

Since the original post I have been in G-BXSG qite a bit and she seems to be in the 8 gallons/hr as a rough guide. Thats a BII by the way , points taken about atmospheric conditions etc, thanks for your input everyone Very Happy
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