Re: FW: : Okay you "Engineers", etc. Explain this

One Sky Dog

Engineering is not witch craft or magic where you just have to believe. Engineering is data driven  evidence based and must withstand all challenges.

Charlie

On May 7, 2015, at 5:16 PM, 'jcrain2@...' jcrain2@... [Q-LIST] <Q-LIST@...> wrote:

It's gotta be "Witch Craft"  I know of a good exorcist!
Bruce

---------- Original Message ----------
From: "'Jerry Marstall' jnmarstall@... [Q-LIST]" <Q-LIST@...>
To: <Q-LIST@...>
Subject: [Q-LIST] FW: : Okay you "Engineers", etc. Explain this
Date: Thu, 7 May 2015 16:24:52 -0400

I know I am violating the rules and may get my hand slapped, but here is one for all of you engineers among us.

Jerry

This will blow the mind of even the best engineer.

This for you scientists, engineers, math types...or folks with good minds. I watched it several times, and must be missing something.

Interesting...

-----------------------------------------

____________________________________________________________
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Re: FW: : Okay you "Engineers", etc. Explain this

Bruce Crain

Re: Highest Speeds?

Chris Walterson

I get VNE 150 mph from my Super Quickie at 6800 rpm. Usually cruise

Re: FW: : Okay you "Engineers", etc. Explain this

Well said John.  +/- (also known as tolerance) stacks up!  The video serves as a reminder to everyone that we have to check dimensions on everything we assemble!

On May 7, 2015, at 6:18 PM, 'John Loram' johnl@... [Q-LIST] <Q-LIST@...> wrote:

Did you notice that at two points the film is discontinuous? Well, that not the answer. No video trickery is involved.

With 63 squares, each square is about 1.5% of the total surface area. This makes it easy to make tiny, almost unnoticeable fudges in the area of the individual squares, and the spaces between them, which is at the heart of this 150 year old illusion….

-john-

From: Q-LIST@... [mailto:Q-LIST@...]
Sent: Thursday, May 07, 2015 1:25 PM
To: Q-LIST@...
Subject: [Q-LIST] FW: : Okay you "Engineers", etc. Explain this

I know I am violating the rules and may get my hand slapped, but here is one for all of you engineers among us.

Jerry

This will blow the mind of even the best engineer.

This for you scientists, engineers, math types...or folks with good minds. I watched it several times, and must be missing something.

Interesting...

-----------------------------------------

Re: FW: : Okay you "Engineers", etc. Explain this

John Loram <johnl@...>

Did you notice that at two points the film is discontinuous? Well, that not the answer. No video trickery is involved.

With 63 squares, each square is about 1.5% of the total surface area. This makes it easy to make tiny, almost unnoticeable fudges in the area of the individual squares, and the spaces between them, which is at the heart of this 150 year old illusion….

-john-

From: Q-LIST@... [mailto:Q-LIST@...]
Sent: Thursday, May 07, 2015 1:25 PM
To: Q-LIST@...
Subject: [Q-LIST] FW: : Okay you "Engineers", etc. Explain this

I know I am violating the rules and may get my hand slapped, but here is one for all of you engineers among us.

Jerry

This will blow the mind of even the best engineer.

This for you scientists, engineers, math types...or folks with good minds. I watched it several times, and must be missing something.

Interesting...

-----------------------------------------

Re: Any Q1's in DFW area?

JMasal@...

Thank yew, Jay

-----Original Message-----
From: jay@... [Q-LIST]
To: Q-LIST
Sent: Thu, May 7, 2015 12:32 pm
Subject: Re: [Q-LIST] Any Q1's in DFW area?

Wishing you a speedy and full recovery, Jim... We all wish you well.

Cheers,
Jay Scheevel, Tri-Q, still building

FW: : Okay you "Engineers", etc. Explain this

Jerry Marstall <jnmarstall@...>

I know I am violating the rules and may get my hand slapped, but here is one for all of you engineers among us.

Jerry

This will blow the mind of even the best engineer.

This for you scientists, engineers, math types...or folks with good minds. I watched it several times, and must be missing something.

Interesting...

-----------------------------------------

Re: Any Q1's in DFW area?

Jay Scheevel

Wishing you a speedy and full recovery, Jim... We all wish you well.

Cheers,
Jay Scheevel, Tri-Q, still building

Bro Jimmeh!

Bruce Crain

Re: Any Q1's in DFW area?

JMasal@...

I have one hangared in Midlothian. I'm in the middle of heart rehab so you can't see it soon.
jmasal@...

-----Original Message-----
From: Dave Anderson usaf_david@... [Q-LIST]
To: Q-LIST <Q-LIST@...>
Sent: Tue, May 5, 2015 11:38 am
Subject: [Q-LIST] Any Q1's in DFW area?

I'd like to see a Q-1 in person. Anyone know of one in the Dallas/Ft. Worth area? I'd need contact info as well.

Thanks everyone.

Dave

Re: Any Q-2 OR Q-200 Near Knoxville, TN?

axmanflier2@...

Jerry,

Thanks you for the offer. What would be the best way to contact you?

Alex

Re: Newbie Questions

Mike Dwyer

The bad thing about the Q2 built in spar is that it ends a couple of feet before the wing tips and coincidentally is where it breaks on a hard landing...

Mike Dwyer  Q200  N3QP

Q200 Website: http://goo.gl/V8IrJF

On Wed, May 6, 2015 at 3:25 PM, afarr@... [Q-LIST] wrote:

The good thing about the GU canard is that it is strong enough to not need the carbon fibre spar. Also I understand that the contamination issues can be solved by using VGs.
Allan

Re: Newbie Questions

Allan Farr

The good thing about the GU canard is that it is strong enough to not need the carbon fibre spar. Also I understand that the contamination issues can be solved by using VGs.
Allan

Re: Q-200 Aerodynamics Study

One Sky Dog

Jay,

Now you have let the cat out of the bag, you will not be able to be the fastest Tri Q with your neutral lifting main gear legs.

Regards,

Charlie

On May 6, 2015, at 9:48 AM, jay@... [Q-LIST] <Q-LIST@...> wrote:

Thanks Jerry, The videos you made with the camera beneath your vertical fin were VERY valuable to me. When I finish part 3, you will see how much I learned from your video, but basically you allowed me to figure out what the main gear leg was doing aerodynamically to affect the cruise characteristics of the Tri-Q. Quite insightful. So stay tuned. For now, you may be most interested in flipping to the latter half of part 2, for discussion of landing and takeoff behavior in ground effect. You may need the earlier half of part 2 to understand the graphs, but maybe not...after all you are a fighter jock!

Cheers,
Jay Scheevel, Tri-Q still building

Re: Q-200 Aerodynamics Study

Jerry Marstall <jnmarstall@...>

I am really amazed at the data you can extract from what seems to be meaningless information.  That’s why I was a jock instead of an engineer.

Keep working on the Q.

J

From: Q-LIST@... [mailto:Q-LIST@...]
Sent: Wednesday, May 6, 2015 11:48 AM
To: Q-LIST@...
Subject: RE: [Q-LIST] Q-200 Aerodynamics Study

Thanks Jerry, The videos you made with the camera beneath your vertical fin were VERY valuable to me. When I finish part 3, you will see how much I learned from your video, but basically you allowed me to figure out what the main gear leg was doing aerodynamically to affect the cruise characteristics of the Tri-Q. Quite insightful. So stay tuned. For now, you may be most interested in flipping to the latter half of part 2, for discussion of landing and takeoff behavior in ground effect. You may need the earlier half of part 2 to understand the graphs, but maybe not...after all you are a fighter jock!

Cheers,
Jay Scheevel, Tri-Q still building

Re: Q-200 Aerodynamics Study

Jay Scheevel

Thanks Jerry, The videos you made with the camera beneath your vertical fin were VERY valuable to me. When I finish part 3, you will see how much I learned from your video, but basically you allowed me to figure out what the main gear leg was doing aerodynamically to affect the cruise characteristics of the Tri-Q. Quite insightful. So stay tuned. For now, you may be most interested in flipping to the latter half of part 2, for discussion of landing and takeoff behavior in ground effect. You may need the earlier half of part 2 to understand the graphs, but maybe not...after all you are a fighter jock!

Cheers,
Jay Scheevel, Tri-Q still building

Re: Newbie Questions

Jay Scheevel

Jerry,

Listen to Paul. I have never seen nicer glass work than on Paul's airplane. He pays special attention to detail, which is what gives me a fighting chance of beating him to the finish line!

Cheers,
Jay Scheevel, Tri-Q, still building

Re: Q-200 Aerodynamics Study

Jerry Marstall

Whoa!  I’m going to have to delete some stuff in the old brain to have room for all of this.  Like Paul F., I hope I can understand this.  What a great endeavor. Your efforts are greatly appreciated.   Incredible piece of work.

Jerry

From: Q-LIST@... [mailto:Q-LIST@...]
Sent: Tuesday, May 5, 2015 6:49 PM
To: Q-LIST@...
Subject: Re: [Q-LIST] Q-200 Aerodynamics Study

Might need to make that a strong coffee!

Re: Not so fast.

willardwhite671@...

Sam, I can't seem to post on your site, so here goes.  I think you gave up too much RPM (HP).  If your torque curve is flat near 3,000 rpm, you will have given up a significant amount of hp by reducing the rpm ten per cent. Your prop maker should provide you with some dyno results from a similar engine.  Best results are when the prop allows the engine to spin up to max hp rpm while the tip speed approaches M.75 at 310 fps.  Wouldn't it be nice if that occurred at,  say 2950 to 3000 rpm?  Congrats on having one of the prettiest and most efficient airplanes in the world.  Keep posting on your progress.  Willard

Re: Newbie Questions

Paul Buckley

﻿
Hi Jerry

The Waddelow (LS1) canard was designed solely for a tri gear and must not be used as a direct substitute canard for a tail dragger.

It is built in much the same way as the main wing, but with extra reinforcing in certain areas. You cannot use the main wing layup schedules to build the Waddelow canard because the canard is subject to twice the flight loads of the main wing. The Waddelow plans address this.
It is not, of course, subject to the same landing loads through those wingtip wheels of the taildragger, which is why the spar is redundant.

It is built without anhedral ( i.e.flat)  which makes it easier to build.

It can be built as a standard 200" canard, as I have, or an extended 240" version, as built and flying by Bruce Crain.

Paul Buckley
Embryo TriQ-200
Cheshire,
England

----- Original Message -----
Sent: Monday, May 04, 2015 9:55 PM
Subject: [Q-LIST] Newbie Questions

Guys/Gals,

I’m still in the “due diligence” phase of building a Tri-Q200.
I have a few questions I’d like to ask the group. I should be in the market for a kit or finished plane in the very near future.

1. Re: Canard. I understand the need for the LS-1 canard. I am guessing the Main wing does not have the same problems as the old style canard did. Correct? Or is there a new template for the main wing as well?

2. Re: Canard. Since I am seriously looking at the Tri-Q200 variation, does the LS-1canard need the Carbon fiber spar? Or can it be constructed with a layup schedule similar to the main wing? (It seems like a big expense to contend with, considering I would not need the support for the wheels at the tips of the canard.)

3. Where do I get the main gear” Hoop”?

4. Is there documentation available which can show me how to make the main gear beneath the canard as I have seen the taildragger version with the wheels inboard. (I think that is an interesting iteration as well.)

I’m sure as soon as I hit the “Send” key, I’ll think of more questions to ask… but there are Brat’s (the sausage kind) on the grill.

Regards,

Jerry Schneider
Former Cozy MKIV Builder/Flyer
jerskip.com

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