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c100driver
5th Jul 2011, 20:13
How is the fuel flow with IO550?

Desert185
5th Jul 2011, 23:02
Just to contribute my opinion of the great Skywagon...

Had an E model since 2000. Picture an airplane that will carry 1,000# from a 700' strip, fly for 5+30 and land on a 700' strip...and look good while doing it. With Sportsman cuff, WingX extensions and VG's it will perform even better. Great airplane.

185skywagon
5th Jul 2011, 23:54
C100,
fuel flows are up but so is speed.

However, when I setup for a similar airspeed as before they are about the same as the last engine.

Desert185, I concur with all you say.:ok:

185.

Chimbu chuckles
6th Jul 2011, 05:44
Cracker you got the Gamis and EDM for LOP?

IO550 runs VERY well LOP.

Me departing Paunui a few weeks ago...loaded CGG up with Dave and 3 of my Trolley dollies and went to see a work mates new house - kinda cool landing and parking on his back lawn. In fact we went two days running and took 6 Trollies all up...day 1, the day before this vid, the weather was utterly calm and cloudless...awesome run around the Coramandle Peninsular going the 'long way' to Paunui. The day Sarge remembered his camera was drizzly and windy...still awesome fun...went to Great barrier Island enroute Paunui this day...well I can say I have been to GBR...wont be racing back.:rolleyes:

Just gotta love the grunty noise...even its 'only' an IO470. Was fun flying the old girl reasonably loaded too - well all seats filled - nice to get the CofG back a little more than with just two up.

fQQKB9Wo5Yo&feature=related

Not sure I posted this before...not on this thread anyway...coming back in formation with another Kiwi mate, Graham, in his G500 equipped IFR 185 from Raglan. Both Dave and Graham reckon its the best formation vid of a C185 on youtube:ok:

1oCPoXdTTFY&feature=related

No argument they are a bloody good looking aeroplane. And NZ is the Southern Hemisphere home of Cessna taildraggers.

185skywagon
6th Jul 2011, 06:01
Chuck,
haven't got Gami's yet.
I have the UBG 16 analyser though.

our clients buy fuel for air work, so I don't worry too much about fuel burn, within reason.

Chimbu chuckles
6th Jul 2011, 06:05
What about your cylinders and valves?

185skywagon
6th Jul 2011, 06:18
Never had any cylinder off, or valve problems in 5 x IO-520 engines so far.
all have gone to time plus a bit more.

they just don't run all that hot in the 185 installation.

Desert185
6th Jul 2011, 18:49
The exhaust shroud and cowl louvers really keep the CHT's down, especially running LOP with GAMI's. Closing the cowl flaps a bit sooner, as a result, makes for a bit more climb rate and speed.

Adding a not so popular Skywagon option (Knots2U flap gap seals) nets a 3-5 MPH cruise speed increase with NO INCREASE in stalling speed. A 500 FPM climb near sea level results in a cruise climb IAS of 157 MPH...this with 8.50's, bubble windows, Sportsman cuff, WingX and Micro Aero VG's. Prop is an 86" two-blade. Descent planning had to be modified slightly, also, as the speed doesn't slow as quickly. My buddy is getting the same results.

The 185 is a winner.

Dances With Dingoes
18th Aug 2011, 16:15
Experts. Two blades or three?

DD

ForkTailedDrKiller
18th Aug 2011, 22:19
Two blades or three?

Depends how much noise you want to make. NOTHING compares with the kackle on TO of the big two blade!

Dr :8

185skywagon
18th Aug 2011, 22:38
It is often said that the 2 blade is faster than a 3 blade install.
In my experience there is 4/5 of 5/8 of FA difference.

I have had 86" and 82" 2 blades, 80" 3 blade (with thin blades) and now 86" 3 blade with the big square blades.
This prop has given me the largest increase in acceleration and climb performance with very little penalty in the cruise. Maybe a couple of knots.
Now strapped on the front of an IO-550, cruise is still very good. refer some figures in previous posts.
ps: This prop is very LOUD on a Zero deg morning.
86" 3 blade D3A34 C401 90 at-4
http://www.skywagon.info/webshots/2009/prop.JPG

Desert Flower
18th Aug 2011, 22:45
Hey 185skywagon - thought you would have been down in my neck of the woods by now?

DF.

185skywagon
18th Aug 2011, 23:15
Df,
SA Gov decided to use their own 206 this year. It was good to have a break from it as well. I think the weather has been fairly ordinary over the last couple months too.
cheers,
185.