Date   

Re: Facet Fuel Pump

Michael Dunning
 

Maybe instead of solid state the new ones are "quiet state" ūüėĀ

Mike: Do you think the diode could be replaced and the pump repaired? Be an interesting data point and might leave you a spare...

Would be kind of fun to run the Facet+BraveX pumps side by side 24/7 circulating a test fluid to see how long they last. Anyone got 83 days to waste??
--
-MD
#2827 (still thinking about planning on visualizing how to finish building)


Re: How Much Cable Play between Rudder and Tailwheel in Q2?

John Hoxie
 

I have to complete the six pack too.


On Sun, Jun 21, 2020 at 8:38 AM, Joe Hood
<joe.hood@...> wrote:
I intend to complete the six pack, once I get the plane back to Michigan. 

On Sun, Jun 21, 2020 at 10:26 Sam Hoskins <sam.hoskins@...> wrote:
Bruce is correct, you have to adjust the cable to the rudder with the tailwheel spring unloaded. If the cable is too loose, you can encounter rudder flutter at the higher speeds.  This is unnerving, as it shakes the crap out of the entire aircraft.

Joe, take a look at my recent Q-Tour video. The stock tailwheel/cable setup is not good.  I talk about it a little here and how I improved it.  https://youtu.be/yAqjcTAcHTw?t=1758
The stock method is a shitty design.

Regards,

Sam

.

On Sat, Jun 20, 2020 at 7:35 PM Joe Hood <joe.hood@...> wrote:
I have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: How Much Cable Play between Rudder and Tailwheel in Q2?

Joe Hood
 

I intend to complete the six pack, once I get the plane back to Michigan. 

On Sun, Jun 21, 2020 at 10:26 Sam Hoskins <sam.hoskins@...> wrote:
Bruce is correct, you have to adjust the cable to the rudder with the tailwheel spring unloaded. If the cable is too loose, you can encounter rudder flutter at the higher speeds.  This is unnerving, as it shakes the crap out of the entire aircraft.

Joe, take a look at my recent Q-Tour video. The stock tailwheel/cable setup is not good.  I talk about it a little here and how I improved it.  https://youtu.be/yAqjcTAcHTw?t=1758
The stock method is a shitty design.

Regards,

Sam

.

On Sat, Jun 20, 2020 at 7:35 PM Joe Hood <joe.hood@...> wrote:
I have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: How Much Cable Play between Rudder and Tailwheel in Q2?

Sam Hoskins
 

Bruce is correct, you have to adjust the cable to the rudder with the tailwheel spring unloaded. If the cable is too loose, you can encounter rudder flutter at the higher speeds.  This is unnerving, as it shakes the crap out of the entire aircraft.

Joe, take a look at my recent Q-Tour video. The stock tailwheel/cable setup is not good.  I talk about it a little here and how I improved it.  https://youtu.be/yAqjcTAcHTw?t=1758
The stock method is a shitty design.

Regards,

Sam

.

On Sat, Jun 20, 2020 at 7:35 PM Joe Hood <joe.hood@...> wrote:
I have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: How Much Cable Play between Rudder and Tailwheel in Q2?

Joe Hood
 

Oh, that makes sense: I did have weight on the tailwheel. And the build instructions do show springs wrapped around. 

Thanks!

On Sun, Jun 21, 2020 at 09:26 Bruce Crain <jcrain2@...> wrote:
Is thy that with the tail wheel off of the ground?  The tail spring flex will perhaps make it tighter when the load is off.  You can take the slack off the cable by putting a couple of springs from one cable to the other which pulls them together in the middle.  As you push the rudder peddles left and right the springs move with them.  Hope this is clear as mud. 
Bruce


On Jun 20, 2020, at 7:35 PM, Joe Hood <joe.hood@...> wrote:

ÔĽŅI have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: How Much Cable Play between Rudder and Tailwheel in Q2?

Bruce Crain
 

Is thy that with the tail wheel off of the ground?  The tail spring flex will perhaps make it tighter when the load is off.  You can take the slack off the cable by putting a couple of springs from one cable to the other which pulls them together in the middle.  As you push the rudder peddles left and right the springs move with them.  Hope this is clear as mud. 
Bruce


On Jun 20, 2020, at 7:35 PM, Joe Hood <joe.hood@...> wrote:

ÔĽŅI have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: Old Video - Subaru Q2

ryan goodman
 

Of course it matters. I do think we have better "alternative" development happening now than ever before. But I think they has more to do with advances in engine management technology than some magic dust that suddenly made non aircraft engines better for this application. But the good thing in my opinion, is that those advances are also available for retrofit to proper aircraft engines now. So you can have a Conti or lyc with the electronic management systems, injection etc. 


On Fri, Jun 19, 2020 at 9:02 AM, Jon Finley
<jd@...> wrote:
That is always a tough question to answer Ryan.

The final configuration performed fine - much better than a Revmaster, maybe approaching a Q200.  However; that does not tell the real story. It required thousands of hours to get it to work (yes, thousands, plural), the cost, and the limitations that existed after all that effort were absolutely not worth it. I fly behind a Lycoming now - ya, big old ugly dinosaur.  I fly whenever and wherever I want - including some places most pilots avoid. I pull the cowling off once every six months or so just cause it feels like a should.  The reliability and resulting peace of mind cannot be understated.  The cost of an aircraft engine (Lycoming/Continental) and bad-mouthing "ancient tech" are the basic tenants of those desiring an "alternative engine".- they are lies we tell ourselves. If you want to fly (soon & reliably) - fork out the dollars at the front end and install an O-200.  If you want to spend years tinkering, troubleshooting, scaring yourself to death, increasing your risk of significant injury or death, and spending MORE $$$ than an O-200 costs - go with an alternative engine.  Btw, having flown with a HAPI VW and Revmaster (and Rotax 503), I put them in the 'alternative engine' category.  

Not sure it matters but my opinions are based on twenty years of working on alternative engines and ten years flying behind aircraft engines.  So, not exactly an opinion based on a couple articles that I read.

Jon Finley
Somewhere in the Southwest flying an RV-4


Re: LS-1 canard

Jim Patillo
 

I believe the LS1 showed up around 1982 if my memory is correct.

Jim
N46JP Q200

Sent from Outer Space


From: main@Q-List.groups.io <main@Q-List.groups.io> on behalf of Bill Higdon via groups.io <willard561@...>
Sent: Saturday, June 20, 2020 6:09:48 PM
To: main@Q-List.groups.io <main@Q-List.groups.io>
Subject: [Q-List] LS-1 canard
 
What year was the LS-1 canard first released?


Re: Hobbs Wiring

Paul Fisher
 

I've seen it done both ways.  Mine is wired through an oil pressure switch.  When the engine is running, so is the Hobbs.  

Paul

On Sat, Jun 20, 2020, 20:50 Joe Hood <joe.hood@...> wrote:
My Hobbs meter isn’t moving. Does Hobbs connect up with oil pressure or straight to the master bus?


Hobbs Wiring

Joe Hood
 

My Hobbs meter isn’t moving. Does Hobbs connect up with oil pressure or straight to the master bus?


LS-1 canard

Bill Higdon
 

What year was the LS-1 canard first released?


How Much Cable Play between Rudder and Tailwheel in Q2?

Joe Hood
 

I have about a half inch of play in relationship to my tail wheel. This is still pre-Six pack, so cable comes from wheel to rudder. I haven't figured out where in the plans this number might be, anyone know?


Re: Facet Fuel Pump

Corbin
 

Thanks for the video.  My Faucet solid state (currently $39 on Aircraft Spruce) is much quieter than both those examples In your video.  Which is good because I thought mine was loud before now.

Corbin

On Jun 20, 2020, at 6:14 PM, Mike Dwyer <q200pilot@...> wrote:

ÔĽŅ
As reported earlier my 20 year old Facet Fuel pump failed last week.  These things now go for $70 (auto parts store) but the BraveX (knockoff?) sells for $20.  I've got one flight in with the BraveX and seems to be nice.  It's virtually the same form fit and function as the Facet but it runs quieter.

I made a video so you can hear the difference in the two pumps when dry.  They are both pretty quiet when they have fuel to pump.  The video also shows the 20 year old Facet pump insides.  I'm always curious what's inside stuff so I took it apart.  The Facet previously did nothing when powered up but on the bench when I jumped the protection diode the darn thing started working and now won't quit.

Funny that today Facet advertises the pump as new "Solid State Fuel Pump" but it looks like 20 years ago it was also solid state!  Marketing...

We'll see how long the BraveX runs!

youtube video

Mike Dwyer

YouTube Videos: https://goo.gl/yKEHfK
Q200 Website: http://goo.gl/V8IrJF

--

Corbin 
N33QR


Facet Fuel Pump

Mike Dwyer
 

As reported earlier my 20 year old Facet Fuel pump failed last week.  These things now go for $70 (auto parts store) but the BraveX (knockoff?) sells for $20.  I've got one flight in with the BraveX and seems to be nice.  It's virtually the same form fit and function as the Facet but it runs quieter.

I made a video so you can hear the difference in the two pumps when dry.  They are both pretty quiet when they have fuel to pump.  The video also shows the 20 year old Facet pump insides.  I'm always curious what's inside stuff so I took it apart.  The Facet previously did nothing when powered up but on the bench when I jumped the protection diode the darn thing started working and now won't quit.

Funny that today Facet advertises the pump as new "Solid State Fuel Pump" but it looks like 20 years ago it was also solid state!  Marketing...

We'll see how long the BraveX runs!

youtube video

Mike Dwyer

YouTube Videos: https://goo.gl/yKEHfK
Q200 Website: http://goo.gl/V8IrJF


Re: Old Video - Subaru Q2

Kevin Boddicker
 

I did! I did!


On Jun 19, 2020, at 12:34 PM, Jon Finley <jd@...> wrote:

Yes indeed, that is a radiator.  Here's a photo of the ducting for it that was in the tailcone.

Now that I'm looking at this stuff again, I'm starting to understand why people looked at me kinda strange, shook their head, and walked away!! :-)

Jon Finley
Somewhere in the Southwest flying an RV-4 <314JF_RadiatorDuct.jpg>


oil flow- airflow patterns on a Q2

Jay Scheevel
 

I put Larry Koutz’ oil flow photos into a single pdf. Here it is.

 

Cheers,

Jay

 

From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Jon Finley
Sent: Friday, June 19, 2020 11:18 AM
To: main@Q-List.groups.io
Subject: Re: [Q-List] Old Video - Subaru Q2

 

Thanks Joe! Wing root is another place for improvement. Both wing and canard to fuselage intersections are tough due to the diverging angles. I think it was Bob Farnum that took some interesting photos of the bellies of several jets at OSH (long ago). I suspect the secret to a few kts might exist in those photos.  Several of us also did some oil flow testing. I'm sure (??) Sam did so on his speedy machine.  Mine were horrible, as already shown, but that (oil) is another way to get some fairly good info - particularly if you don't have someone to fly and video for you. It is messy though!! :-)

Jon Finley
Somewhere in the Southwest flying an RV-4


Re: Old Video - Subaru Q2

Jon Finley
 

Yes indeed, that is a radiator.  Here's a photo of the ducting for it that was in the tailcone.

Now that I'm looking at this stuff again, I'm starting to understand why people looked at me kinda strange, shook their head, and walked away!! :-)

Jon Finley
Somewhere in the Southwest flying an RV-4


Re: Old Video - Subaru Q2

Joe Hood
 

I forgot to ask: Is that the radiator, P-51 style, hanging from the belly, behind the pilot?


On Fri, Jun 19, 2020 at 9:00 AM Jon Finley <jd@...> wrote:
I recently stumbled onto some old video footage of my Q2.  It is not very good - from before the time of good digital equipment and know how. Regardless, I found it memory stirring and thought it might be interesting to a few others so I decided to see if modern technology could improve it a bit.  I do think it is better than original but still not up to modern standards.  Nonetheless, hope you enjoy!

Sam: Given how bad the wheelpant and wing root airflow was on my airplane, would be interesting to see yours.  Given your speeds, I bet it is massively better!

https://youtu.be/wKgrYV3ZRGo

Jon Finley
Somewhere in the Southwest flying an RV-4


Re: Old Video - Subaru Q2

Jon Finley
 

Thanks Dave!! I'm planning on FOD again this year and hope to hear about your latest paddling exploits!!  My governor told me that it is unsafe for me to be out in my kayak so I'm suffering a bit, but at least I'm safe.  Hope you drag Rodney along again too!

Jon Finley
Somewhere in the Southwest flying an RV-4


Re: Old Video - Subaru Q2

Jon Finley
 

Thanks Joe! Wing root is another place for improvement. Both wing and canard to fuselage intersections are tough due to the diverging angles. I think it was Bob Farnum that took some interesting photos of the bellies of several jets at OSH (long ago). I suspect the secret to a few kts might exist in those photos.  Several of us also did some oil flow testing. I'm sure (??) Sam did so on his speedy machine.  Mine were horrible, as already shown, but that (oil) is another way to get some fairly good info - particularly if you don't have someone to fly and video for you. It is messy though!! :-)

Jon Finley
Somewhere in the Southwest flying an RV-4

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