Sure. Keep in mind my SR is a Trike, so cruise will be a little higher on the
TDs.
I have an IO-540C4B5 with a Constant Speed Hartzell Prop running original
bendix mags.
I have the Pacific NW Aero VG kit on all surfaces.
I'll start with the numbers I see routinely:
I cruise at approximately 75% power @ 2200rpm and 24-25"map, leaned
properly I burn 13gph at 125kts TAS. This puts my oils temps at 220f, CHTs
below 400f, and EGTs below 1400f. I have cruised in 97f OAT with these
numbers. At 20f OAT I see the oil temp stay around 200f.
I use about 1 quart of oil every 10 hours and from the looks of the underside -
it's mostly blow-by. :)
Climb is astonishing (for me anyway - after years flying 182s and 172s). The
last time I paid any attention to my rate of climb I saw 1800fpm with half fuel
and only myself in the plane. For my setup, I've calculated 62kts as my Best
Angle of Climb. Best Rate of Climb is 78kts, and I cruise climb at 90kts.
My testing at gross weight (3,000lbs) still had climb rate in excess of
1,000fpm, but I haven't really paid attention to this in a while. I've flown at
gross many times in and out of my 2,800 airport (800 AGL) and figure I'm
using about 1,400 ft each way. Caution here: I've never measured this, and
I'm a relatively low-time IFR pilot (300hrs total) so I don't push it too close
the edge of the envelope. Every pilot, and I mean every single pilot that's
flown with me has commented that the climb is remarkable.
Stalls at gross clean are around 52 kts and 48kts with the flaps at 30deg.
From about 2200 lbs up to gross weight, the stalls are gentle and straight
forward. Lightly loaded with me and around half fuel, I can't really get a
break. It just hangs nose (really) high and mushes flat at about 500fpm
power off. With the vortex generators it's completely controllable in all axis.
Now, I haven't tried full aileron deflection in this fully stalled nose-high
condition. I have rocked the wings about 10 degrees each way to confirm I
still have aileron control. Rudder and elevator were still effective as well.
I have had only one problem. The brake issue I described earlier. The brakes
buzz or chatter something fierce. It could be something specific to the Trikes,
or maybe I have some defective parts. I've tried replacing the pads, scuffing
the discs, camforing the leading and trailing edges of the pads, etc. Nothing
has had any affect so far.
Other than that, I have not made one change to the plane since its first
flight. I've inspected every rivet, bolt, pulley, and pushtube on two ocassions
in 70 hours, and everything is exactly as it should be. It flies hands off, with
only elevator trim.
In addition to solving this brake problem, I'd like to add fairings to the gear
legs - mains and nose gear. I'd like to add wheel pants to all three, or the
type that just go behind the tires - like the Maules used to have. I think I
could see cruise as high as 133kts TAS if I added these.
I have to say I couldn't be happier with the plane. It outperforms its spec
sheet. And, I'm glad I used the IO-540.
Disclaimer: Every experimental/homebuilt aircraft is different, even when built
from identical kits. Do not use any of my numbers stated here as guidance.
Your aircraft, environment, engine performance and other factors may
significantly affect the numbers you see and use.
Hope this helps, I'm happy to answer any questions and I have hundreds of
photos if there's interest.
Fred Darnell
On 8/17/2009 3:26 PM,
super_rebel131@yahoo.com wrote to rebel-builders:
-> Hi Fred,
->
-> You wouldn't mind passing on your thoughts and performance numbers for
your Super Rebel for the benefit of the rest of the Group? There are so few
Lycoming Super Rebels out there flying it would be interesting to know:
->
-> 1) performance (climb, cruise, fuel burn, etc)?
-> 2) Any service issues?
-> 3) Any improvements you would make based on your first 70 hours?
->
-> Thanks, -Jason
->
-> --- On Mon, 8/17/09,
fdarnell@dcsol.com <
fdarnell@dcsol.com> wrote:
->
-> > From:
fdarnell@dcsol.com <
fdarnell@dcsol.com>
-> > Subject: [rebel-builders] Super Rebel brake parts needed
-> > To:
rebel-builders@dcsol.com
-> > Date: Monday, August 17, 2009, 1:11 PM
-> > Hello everyone:
-> >
-> > N2500V has been flying since October with about 70 hours on
-> > her now. The
-> > flying has been great as the airplane exceeds my
-> > expectations in every way.
-> > Tried to make it to Oshkosh, but the weather here kept me
-> > from flying. I am
-> > having only a slight problem with squeaky brakes, and
-> > nothing I've done to-
-> > date has caused even the slightest change. So, I'm ready to
-> > start changing
-> > out parts.
-> >
-> > I'd like to buy (2) SG-31 if any of you SR builders out
-> > there happen to have
-> > gone to another brake system and have a couple laying
-> > around. The SG-31 is
-> > the plate the caliper pins slide in and out of. The axle
-> > sticks through the hole
-> > in the center and it has a bolt hole at each of the 4
-> > corners.
-> >
-> > I don't know if it's different between the Trikes and
-> > Taildraggers.
-> >
-> > If you have 2, please contact me -
fadarnell@bellsouth.net.
-> >
-> >
-> >
-> >
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-> >
->
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->
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