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RE: Super Flying King twin-engined version - 10/16/2005 2:05 PM   
Bob757FL


 

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Status: offline 		Congratulations Reg!!!

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RE: Super Flying King twin-engined version - 10/25/2005 3:38 PM   
fobus



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From: Midwest City, OK, USA
Status: offline 		Greetings all,

The SFK twin video is on our club website "www.baxterfield.com". It contains my most embarrassing moments from the maiden flight. I'm sorry there were no "Andy Kane" kind of aerobatics. While trying to trim, my first thoughts were to keep it right side up and take it home in one piece. It still has to pass muster at our club meeting next month. It will be thoroughly wrung out after that time.

Reg


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RE: Super Flying King twin-engined version - 11/1/2005 8:17 AM   
SALMONBUG



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From: kampenhout, BELGIUM
Status: offline 		Hi folks, I have been out of my private projects for a long time (I worked on projects for a european RC company), but this winter I will be back in the workshop on my own planes and will finish this twin sfk . I am happy to read it fly great....... By the way I was sure it would be a perfect bird, its a Bruce Tharpe design after all........

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RE: Super Flying King twin-engined version - 12/1/2005 1:51 AM   
stefanP



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Status: offline 		Can one you builders tell me what the wing cord is? Also does anybody know the weight of the plane in the bare bones? Thanxs,stefanP

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RE: Super Flying King twin-engined version - 12/1/2005 8:37 AM   
fobus



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Status: offline 		StefanP,

The wing chord is nearly 26 inches. I didn't weigh it in the bones. Sorry.

Reg Mason

PS to all: Since the maiden flight, the King has been doing slow aileron rolls, stall turns, four point rolls, outside loops and inverted flight (that it doesn't seem to happy with).


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RE: Super Flying King twin-engined version - 12/30/2005 2:52 AM   
stewburner


 

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Status: offline 		Hello Reg, I would like to see more detail of your flap mod . Do you have any more pictures of the details ? Please Stewburner

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RE: Super Flying King twin-engined version - 12/30/2005 6:08 PM   
fobus



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Status: offline 		Hey Stewburner,

Got lots of pics of the flap installation. Since you are the first to ask for a copy of the CD, email me your address at RMason405@cox.net and I will burn you a copy, no charge. I was so pleased with the way the flap setup worked on the King, I have since used it on another of my big birds. Keep us posted on your progress on this thread.

Reg Mason


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RE: Super Flying King twin-engined version - 12/30/2005 8:11 PM   
stewburner


 

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Status: offline 		TO Reg; A big thank you for the very generous offer . I sent you an e-mail with my address so that you know where to sent the copy to. Stewburner

< Message edited by stewburner -- 12/30/2005 8:13 PM >

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RE: Super Flying King twin-engined version - 1/6/2006 4:58 AM   
psbk


 

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Status: offline 		Reg,
I'll be finished with the Flyin' King in a couple of weeks and plan to start the SFK . I will be using the Flowler Flaps and a few other of your ideas and would love get of copy of your CD. I'll send you an email with my address. Thanks,
Pat

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RE: Super Flying King twin-engined version - 1/6/2006 5:12 AM   
Skycam41



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From: Fort Macleod, AB, CANADA
Status: offline 		Pat, you will love your flyin' King and I bet the SFK is twice the fun!

Mike

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RE: Super Flying King twin-engined version - 10/15/2006 2:49 AM   
dwight5760


 

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From: Mt. Olive, AL, USA
Status: offline 		I have a magnum 4.0 CI 5 cylinder radial. I am very interested in the SFK . Would my engine work on this plane and how do I get the kit or plans?

Dwight Pierce
piercetech@bellsouth.net
Birmingham Alabama

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RE: Super Flying King twin-engined version - 10/15/2006 3:19 PM   
BruceTharpe


 

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Status: offline 		Hi Dwight, I'm the manufacturer of the Super Flyin' King kit. You can read more about it here:

http://www.btemodels.com/ sfk .html

As for the Magnum, I think it would work just fine. The recommended engine range is 3.7 to 4.9 c.i. GAS, and four-stroke glow engines are pretty comparable to gas engines of similar displacement.

I invite you to visit the website and let me know if you have any questions.

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RE: Super Flying King twin-engined version - 10/17/2006 1:44 AM   
CK1



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Status: offline 		Bruce , I again must praise the SFK . I recently flew mine for a candy drop at a local charity flyin , with 5 pounds of candy in the box I couldnt tell any difference
in the flight . I'm guessing that 15 or more pounds wouldnt be a problem at all .
For those of you interested in this plane ,it is simply an amazing workhorse that is a pleasure to build and fly.

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RE: Super Flying King twin-engined version - 10/17/2006 3:04 AM   
mstroh3961



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Status: offline 		With that capacity it could make a heck of a cross country plane.


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RE: Super Flying King twin-engined version - 8/1/2008 1:47 PM   
Firewoood


 

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Fellow Builders

My name is David Fuchs and I am also getting ready to order the SFK from Mr. Thorpe. I am now working on my second normal sized FK. Not to suggest that some of you may be abnormal. :-) The purpose of my post is to discuss the aerodynamics of the SFK with respect to the twin engine version some of you are building and flying. First consider the tail configuration of some recent aircraft. The F/A-18, The F-14 and the F-15 although I prefer Navy. In high AOA flight configurations the nose of the aircraft often blocks the airflow across the vertical stabilizer. When the stabilizers are moved outboard, away from the centerline of the aircraft, the airflow is uninterruppted and the rudder effectiveness is maintained throughout all flight ranges and airspeeds. Other methods of accomplishing this is to increase the height of the vertical stabilizer. On the SFK , with the loss of one engine, the operator (pilot) may have to increase the power on the good engine in order to return to the approach end of the runway. This is the actual purpose of my post. I have often read from others who have built the FK, (normal sized) that they felt the rudder was to small. Mr. Thorpe has reassured us the rudder was the proper size. OK. BUT, in the larger version of the SFK , with the loss of one engine another aerodynamic factor needs to be considered. VMCair. Minimum control speed. If we increase the size of the rudder, with the loss of the critical engine, we may be able to (more effectively) maintain directional control. This could be a factor in returning to the runway in one piece.

I am open to receive comments fuchs@sysplan.com">Dfuchs@sysplan.com

Respectfully

Navy Davy

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RE: Super Flying King twin-engined version - 8/1/2008 2:47 PM   
michaelburton01


 

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From: Assumption, IL, USA
Status: offline 		In life there are two kinds of people.
Engineers who make great things. And even greater things from already great things.
And Non-Engineers who second guess everything that is great.

Consider if you will the Rockwell Aero Commander and pilot Bob Hoovers.
If anybody could be credited in over testing high AOA in a twin Bob is "Da Man"

http://www.flyrightproductions.com/AboutBobHoover.htm

So, if I was in your shoes... and Bruce says the Rudder is the proper size. I would have to bow to his better judgement.
But remember no amount of proper engineering can forsee or prevent Pilot Error. I am proof of that.

But this is just my opinion.

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RE: Super Flying King twin-engined version - 8/1/2008 4:54 PM   
BruceTharpe


 

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Status: offline 		Thanks for "having my back" Michael, but David's just thinking out loud. I've always encouraged creativity and don't have a problem with guys modifying my kits to explore their own ideas or theories. Truth be told, there's a lot of TLAR (that looks about right)engineering in the SFK , particularly the twin-version. What looks right to me might not to others.

I've also been very upfront in telling customers that I have never actually built or flown the TWIN version of the SFK . Several have been built now by others, including a tri-motor, and nobody's reported any problems or bad flying characteristics. Given that, and the fact that its configuration - high wing with long span and nacelles relatively close to fuse center - is known to have a forgiving nature, makes me pretty confident that it should be an easy flying twin, even with an engine out.

If I was to build the twin, I would stick with the fin and rudder as designed, but there's no real downside to enlarging the vertical area (fin and rudder) if that's what you want to do.

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RE: Super Flying King twin-engined version - 8/2/2008 5:03 PM   
fobus



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Status: offline 		David,

The build CD you requested is on its way. I included video of the my SFK twin maiden flights. As you will see, one must stay on the rudder on take off to counteract its tendency to pull hard to the left. I used to worry about a single engine outage, but have never experienced such a situation. I guess I have my Zenoah G38s to thank for that, as they have never given me a bit of trouble. The only problem I have had is a side window falling out during flight. This was due to the fact that I did not use Bruce's method of window installation. Serves me right for not listening to the master.

Good luck on your build! Please keep us posted with your progress.

Reg Mason

PS: I would love to see the tri-motor, as I considered such a configuration during my build. Bruce talked me out of it.


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RE: Super Flying King twin-engined version - 8/4/2008 11:53 AM   
Firewoood


 

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Status: offline 		Michael

Look at the size of the rudder in the photograph at the web site that you provided.

I received my aeronautical degree from Embry-Riddle Aeronautical University. I flew the U.S. Navy's P-3 Orion for 17 years tracking Soviet Submarines. Additionally I have logged over 8,000 flight hours in US Naval aircraft. I presently work for the Naval Air Systems Command, something to do with naval aircraft.

So than, perhaps you must be the NON_ENGINEER?

This is my last post.



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RE: Super Flying King twin-engined version - 9/1/2008 4:25 AM   
speedbrake



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Status: offline 		Bruce,
I've been interested in building a tri-motor SFK using two OS 160 twins and an OS 120 twin in the nose. Do you think those engines can handle the airframe weight?

Keith

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RE: Super Flying King twin-engined version - 9/1/2008 5:39 AM   
BruceTharpe


 

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Status: offline 		Hey Keith, believe it or not, it's been done already by another builder! He used three OS 1.60 four-strokes and even at 50 lbs. it had plenty of power. Not 3D power, but good SFK power.

Send me an email and I will put you in touch if you want...

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