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  #1  
Old 05-20-2007, 09:50 PM
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Ironflight Ironflight is offline
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Default Range Performance !

I shot this picture of my EIFS today after climbing to my initial cruising altitude of 11.5K over west Texas, headed to Houston.



A few things to note...

1) Range is showing 956 (nautical) miles! With 368 miles to go to Houston, I could have kept going along the Gulf Coast for quite a lot farther if I'd wanted!

2) Endurance was showing 5 hours, 20 minutes. Later on, after I'd climbed up to 13.5K, I was showing a combination of Endurance (to go) and Elapsed Time (since take-off) of greater than 6 hours!!

3) Elapsed time since engine start (not shown in this shot, but it's on another screen I looked at moments later) was 22 minutes - and that included a very long taxi to the active, as well as the climb to 11.5K'....

It's hard to argue with performance like this - these really are traveling machines!

This weekend's travels included a Saturday flight from Houston to El Paso to pick up Louise who had flown in from D.C. I stopped for fuel in Pecos, TX because it was better than a dollar cheaper than in El Paso. I was showing 45 minutes to go to ELP, with over 2 hours fuel remaining when I stopped in Pecos, so I could have made it non stop! After picking up my passenger, it was a quick trip over the Guadalupes to Carlsbad. We flew almost over the site of our lost RV-6 Aviator - the CAP and local pilots are still looking when weather permits, but it is really rugged terrain. An interesting thing for me was a small thundershower over the northern part of the Guadalupes that never showed up on teh XM radar picture. If you were relying on the XM at night, you'd have thought nothing was there, and you'd have been very wrong! I try to remember that NEXRAD coverage does have holes - and that was one of them! As much as I praise XM weather, and believe it is revolutionary, it (like all tools) has limitations we must keep in mind....

Later on Saturday, Larry Pardue and I took a flying trip up into the Guads (You can see the video here), and Louise took another friend up in her -6. After our respective sightseeing trips, we met up on top of the scattered clouds for a few pictures - a very nice flying afternoon. Sunday included another trip to the Guads with Larry in my back seat, and Louise solo, followed by a loose formation trip over to the little West Texas Andrews airport - cheapest fuel around! Larry climbed in with Louise to return home to Carlsbad, and I headed on back to Houston. Not bad for a day and a half trip! No weatehr problems to speak of - some very isolated thundershowers, but the XM kept me well clear of them

In other words....keep pounding those rivets folks - you're not just building an airplane, you are weaving a magic carpet!
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com

Last edited by Ironflight : 05-20-2007 at 10:25 PM.
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  #2  
Old 05-21-2007, 12:49 AM
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These planes sure do kick butt. A couple of weeks ago I flew 942 nautical non-stop on 33.6 gallons (IFR+ reserve). http://rvimg.com/2007-05-OSH.xls
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  #3  
Old 05-21-2007, 07:19 AM
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Ironflight Ironflight is offline
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I like your spreadsheet Dan - it really shows what you can get in the real world. The GRT has another page of performance stuff that displays real-time mpg and SFC - very cool to see how well you're doign in flight!

BTW Dan, there must be a bug in Weathermeister....it said I should have 18 knots of wind at 11.5K' yesterday, but as you can clearly see, I had 19 knots. Can't you make that thing a little more accurate?!

Paul
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com

Last edited by Ironflight : 05-21-2007 at 09:18 AM.
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  #4  
Old 05-21-2007, 07:47 AM
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airguy airguy is offline
 
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I'm curious about your EFIS #2 voltage feed showing 11.9 volts - what gives?
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Garden City, TX VAF 2020 dues paid
N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #5  
Old 05-21-2007, 08:03 AM
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Ironflight Ironflight is offline
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Quote:
Originally Posted by airguy
I'm curious about your EFIS #2 voltage feed showing 11.9 volts - what gives?
Sharp eye!

That's the Aux battery feed - it is a little battery that is trickle charged off the main battery through a resistor and diode, so it is always just idling along (it never sees alternator voltage because of the isolation). Prior to (and during) engine start, it takes the EFIS load, and then relaxes once the alternator is up. The EFIS will operate down to about 9.0 volts BTW.

Paul
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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  #6  
Old 05-21-2007, 08:42 AM
Baja_Traveler Baja_Traveler is offline
 
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Location: San Diego, CA
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They certainly are time machines... which is why I cant wait to get started!

Take Dans worst fuel economy - If I wanted to go to the LOE fly-in I'd have to drive 685 miles - almost 10 hours if I didnt stop (I can do it in my truck if I wasnt sucking down Diet Cokes). Dan would get there in 4 hours - AND he'd get better fuel economy than I can, unless I made it a 13 hour trip at 55 miles an hour to match his WORST fuel economy.
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  #7  
Old 05-21-2007, 08:51 AM
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dan dan is offline
 
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Route maps that go along with that Excel spreadsheet to help illustrate just what these RVs can do.

Outbound...


Inbound...heading around a low pressure system to optimize things...


BTW, I was "home for dinner" long before sunset on both of these flights.
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  #8  
Old 05-23-2007, 02:13 PM
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ccarter ccarter is offline
 
Join Date: Oct 2006
Location: Franklin, TN
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Default Head down and pounding....

Thanks for these kind of reports guys. They really help keep me motivated (as if the construction wasn't fun enough....). Very much looking forward to first flight in Oct. '07 (hopefully).

Chris...

http://www.n212s.com
RV-7
Dynon D180,
Gar. 496,SL-30,
GMA-340 etc.
(Finishing kit and Electrical)
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