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August-2024
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
balogh's
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"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
Willy Nillie's Shoestring micro racer powered by COX TeeDee010
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Willy Nillie's Shoestring micro racer powered by COX TeeDee010
I bought this kit from Willie Nilly some weeks ago and am just about to finish its decoration. Covered it with clear transparent film to leave the nice grains of balsa visible...coated the fuse and wing roots in polyurethane to proof it against castor, before adding the heatshrink film.
Need a Futaba micro receiver that I will buy next week when stopping by an Austrian hobbyshop Lindinger on my drive from Budapest Hungary to Zwolle Holland, visiting my daughter and son in law.
At only 128 grams dry weight it should be a ball to fly..more to come on its maiden, later..
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240512](https://i.servimg.com/u/f48/19/92/56/25/20240512.jpg)
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240513](https://i.servimg.com/u/f48/19/92/56/25/20240513.jpg)
Need a Futaba micro receiver that I will buy next week when stopping by an Austrian hobbyshop Lindinger on my drive from Budapest Hungary to Zwolle Holland, visiting my daughter and son in law.
At only 128 grams dry weight it should be a ball to fly..more to come on its maiden, later..
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240512](https://i.servimg.com/u/f48/19/92/56/25/20240512.jpg)
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240513](https://i.servimg.com/u/f48/19/92/56/25/20240513.jpg)
balogh- Top Poster
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Kim- Top Poster
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Location : South East Missouri
Levent Suberk- Diamond Member
- Posts : 2233
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Location : Türkiye
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
4.52 oz without the receiver? What size battery is in there?
Do you recall the empty weight of the built up frame?
Well done and enjoy your trip!
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Do you recall the empty weight of the built up frame?
Well done and enjoy your trip!
![Small Cox Logo](/users/3015/29/34/60/smiles/7356.png)
![RC Plane](/users/3015/29/34/60/smiles/1702820958.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
1/2A Nut- Top Poster
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Age : 61
Location : Brad in Texas
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Cool project Andras!!!….. The clear finish is unique….Looks like a great match for the .010….Good luck with first flights!!!…. Looking forward to your report ![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
rdw777- Diamond Member
Posts : 1520
Join date : 2021-03-11
Location : West Texas
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thank you guys.
Brad the 128g is all up dry weight. I have a 1cell 370mAh Lipo battery and small step-up electronics set at 5V output voltage, and a Zepsus magnetic switch brazed to it, the total weight of the three is 20 grams. I decided to omit mechanical switch to save weight and room.
Engine 13 grams. Balloon tank 4 grams, 2 nano servos (elevator and ailerons) 4 grams each. The body of the empty plane weighs 77 grams. Futaba Receiver - temporary- 6 grams. I saw a smaller one at Lindinger Austria that I will buy next week to save room inside plane. I will tank 15 ccm 50/30/20 all-castor fuel for a near 8min flight. The engine has never seen fuel, I will break it in before the maiden flight, maybe tomorrow.
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240514](https://i.servimg.com/u/f48/19/92/56/25/20240514.jpg)
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240515](https://i.servimg.com/u/f48/19/92/56/25/20240515.jpg)
Brad the 128g is all up dry weight. I have a 1cell 370mAh Lipo battery and small step-up electronics set at 5V output voltage, and a Zepsus magnetic switch brazed to it, the total weight of the three is 20 grams. I decided to omit mechanical switch to save weight and room.
Engine 13 grams. Balloon tank 4 grams, 2 nano servos (elevator and ailerons) 4 grams each. The body of the empty plane weighs 77 grams. Futaba Receiver - temporary- 6 grams. I saw a smaller one at Lindinger Austria that I will buy next week to save room inside plane. I will tank 15 ccm 50/30/20 all-castor fuel for a near 8min flight. The engine has never seen fuel, I will break it in before the maiden flight, maybe tomorrow.
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240514](https://i.servimg.com/u/f48/19/92/56/25/20240514.jpg)
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240515](https://i.servimg.com/u/f48/19/92/56/25/20240515.jpg)
balogh- Top Poster
Posts : 4852
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
All Natural Cool Andras!
Safe travels.. catch you on the "flip-flop"
![Cool](https://2img.net/i/fa/i/smiles/icon_cool.gif)
![Cool](https://2img.net/i/fa/i/smiles/icon_cool.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Andras you are very good to keep models lightweight, a kind of engineering
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
Levent Suberk- Diamond Member
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Location : Türkiye
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Very Nice Andres , I like the clear coat and nice decals , Look forward to the median report .
![RC Plane](/users/3015/29/34/60/smiles/1702820958.gif)
getback- Top Poster
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Location : julian , NC
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thanks Eric, my attempt on a maiden failed because the sealing between the backplate and crankcase of this brand new old stock 010 was not tight..the mounting face of the crankcase is not fully plain, its corners where the backplate bolts are protrude a bit...strange, I have never met it before. I was thinking of sanding it plain but simply could not force myself to butcher the gold anodized case of this lil gem... instead I cut a thin ring from a clear silicone tube whose diameter is a tad smaller than the backplate center that sinks into the crankcase, and after pulling the ring on this center part then slightly spanning the crankcase bolts the sealing is now perfect.
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240516](https://i.servimg.com/u/f48/19/92/56/25/20240516.jpg)
![Willy Nillie's Shoestring micro racer powered by COX TeeDee010 20240516](https://i.servimg.com/u/f48/19/92/56/25/20240516.jpg)
balogh- Top Poster
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Join date : 2011-11-06
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Levent Suberk wrote:Andras you are very good to keep models lightweight, a kind of engineering![]()
Thank you Levent, I am only following the efforts of others like Robert and Brad...this model is advertised by Doug Hart the owner if WilliNillies as weighing around 150 grams, so my 128 grams is not bad, thanks to the lightweight battery and electronics that I brazed together..that Zepsus magnetic switch https://www.mg-modellbau.de/main.php?desc=&anr=ZMS7A&action=articledetail&gid=&action3=setspeech&speech=2 is a real light piece of component, and all it takes is just swiping a strong magnet along the fuselage section behind which it hides, and it toggles on and off with every swipe. Mechanical switch is no longer needed.
balogh- Top Poster
Posts : 4852
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Andras, I looked at Willy Nillies site and saw your Shoestring is advertised with a wing area of 70 sq in…. At 128 grams gives it a wing load of 1.82 g per sq in …. Just for comparison it’s right in between a couple of mine … Pageboy is 1.74 g-sq in…. Ace Littlest Stick is 1.93 g-sq in…..Power off glide is quick but manageable in this range ![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
rdw777- Diamond Member
Posts : 1520
Join date : 2021-03-11
Location : West Texas
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thank you, Robert, compared to the few 010 powered planes I have built and flown (Roaring20, Pageboy, Sharkface, my own design Lil SpeeDee) I find the Shoestring really light. I hand launched it without the engine running just to make sure its initial visual trimming not to be surprising during the maiden flight, and I found it really glides well. Hope it will behave the same tame way during the maiden flight.
balogh- Top Poster
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Cribbs74- Moderator
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1/2A Nut- Top Poster
- Posts : 3464
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Location : Brad in Texas
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thank you, Brad, that TeeDee010 in the video ran way below the sweetspot 27k rpm (I audiotached 22k-ish while in the air), so with the proper engine setting at 27k loaded, and >27k unloaded speed in the air, I expect a faster flight than what the pilot reached there.
balogh- Top Poster
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Join date : 2011-11-06
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
roddie wrote:All Natural Cool Andras!![]()
Safe travels.. catch you on the "flip-flop"
![]()
Thanks, Roddie,
were it not for my daughter, I would probably avoid driving to Benelux states...the company I still work for part time resides in Belgium, and the climate and cuisine of these countries are not that attractive, so except for their touristic sites like Amsterdam in the Netherlands, , they are not in the frontline of my favored destinations.
balogh- Top Poster
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Join date : 2011-11-06
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Andras, you sent me to Wikipedia. Doesn't happen very often.
The Benelux Union (Dutch: Benelux Unie; French: Union Benelux; Luxembourgish: Benelux-Unioun) or Benelux is a politico-economic union and formal international intergovernmental cooperation of three neighbouring states in Western Europe: Belgium, the Netherlands, and Luxembourg
BTW. I missed this thread. Beautiful job, and the clear finish.........beautiful and unique.
Bob
The Benelux Union (Dutch: Benelux Unie; French: Union Benelux; Luxembourgish: Benelux-Unioun) or Benelux is a politico-economic union and formal international intergovernmental cooperation of three neighbouring states in Western Europe: Belgium, the Netherlands, and Luxembourg
BTW. I missed this thread. Beautiful job, and the clear finish.........beautiful and unique.
Bob
rsv1cox- Top Poster
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Location : West Virginia
Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thank you Bob,
yes, since the expansion of EU the Benelux countries as a collective name is used less and less frequently. I have never been to Luxemburg, but visited many times Belgium and the Netherlands - the former mainly on business, the latter on touristic and family reunion occasions -, some might find my rudimentary assessment next to a blasphemy, but these 2 countries are geographically and meteorologically similar, all the same, not too attractive to me, and the local food -except for the foreign cuisine - is good not for culinary pleasure but for a forced weight loss diet...just for curiosity, spent a few days in Japan on business in December last year, then April and May recently, and I had to eat more raw fish and seaweed than the shipwreck Tom Hanks in the film Outcast....the older I get, the more I am focused on my vegetative life than on the intellectual observation of foreign countries...(the US still remains one of my favourit culinary and touristic destinations
)
And thanks for your note on the Shoestring, I need to skip the maiden flight to sometime next week, but will report back on my experience.
yes, since the expansion of EU the Benelux countries as a collective name is used less and less frequently. I have never been to Luxemburg, but visited many times Belgium and the Netherlands - the former mainly on business, the latter on touristic and family reunion occasions -, some might find my rudimentary assessment next to a blasphemy, but these 2 countries are geographically and meteorologically similar, all the same, not too attractive to me, and the local food -except for the foreign cuisine - is good not for culinary pleasure but for a forced weight loss diet...just for curiosity, spent a few days in Japan on business in December last year, then April and May recently, and I had to eat more raw fish and seaweed than the shipwreck Tom Hanks in the film Outcast....the older I get, the more I am focused on my vegetative life than on the intellectual observation of foreign countries...(the US still remains one of my favourit culinary and touristic destinations
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
And thanks for your note on the Shoestring, I need to skip the maiden flight to sometime next week, but will report back on my experience.
balogh- Top Poster
Posts : 4852
Join date : 2011-11-06
Age : 65
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Cribbs74 wrote:Sharp looking!
Thanks, Ron,I trust it will live up to its looks when flying!
balogh- Top Poster
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Engine tuned, Prop tweaks, Hot fuel should really make it sing Andras…. Looking forward to your results
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
rdw777- Diamond Member
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cstatman- Platinum Member
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Wow, quite a featherweight! Well built model, getting 22g off the advertised weight is a lot in that weight class. That’s about 15% or so.
The problem with the back of the crankcase is strange, well spotted. The bulges are probably remnants of he thread making process. You probably know this already, but in many large-scale serial production systems, threads are not made by cutting, but with a tool that forces the shape in the material, especially when aluminium is used. The tool sort of displaces the material, instead of cutting. That can cause the surface to bulge around the hole. Just speculation, I don’t know how the threads were actually made.
I seem to remember that in Paul Gibeault’s Mouse engine prep instructions it was mentioned that the back of the crankcase should be checked for flatness, and lightly lapped on an oiled 1000grit paper if not completely flat. Or it could be one of our resident speed engine gurus that gave this tip. It wouldn’t hurt your engine, you would merely finish what was left unfinished by the factory![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
The problem with the back of the crankcase is strange, well spotted. The bulges are probably remnants of he thread making process. You probably know this already, but in many large-scale serial production systems, threads are not made by cutting, but with a tool that forces the shape in the material, especially when aluminium is used. The tool sort of displaces the material, instead of cutting. That can cause the surface to bulge around the hole. Just speculation, I don’t know how the threads were actually made.
I seem to remember that in Paul Gibeault’s Mouse engine prep instructions it was mentioned that the back of the crankcase should be checked for flatness, and lightly lapped on an oiled 1000grit paper if not completely flat. Or it could be one of our resident speed engine gurus that gave this tip. It wouldn’t hurt your engine, you would merely finish what was left unfinished by the factory
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
KariFS- Diamond Member
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Beautiful model András!...congratulations!
Is the wing fixed - glued? Or is it attached somehow to the fuselage?
Is the wing fixed - glued? Or is it attached somehow to the fuselage?
MauricioB- Top Poster
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Re: Willy Nillie's Shoestring micro racer powered by COX TeeDee010
Thanks, Kari. I think the.lightweight electronics I packed combined with the COX TeeDee010 helped reduce the design weight substantially.
I worked in aviation in my prime as a young engineer and learnt that the thread of bolts in the wing and fuselage of airplanes is extruded instead if cut/tapped, in order to avoid micro-crevises in the material, leading to fatigue breaks. But the threads of our COX engines were most likely cut and tapped. The very light and thin wall of the 010 TeeDee crankcase may have got distorted under the stress of thread tapping, leading to the uneven, jutting out face near the bolt area. I remember reading the tip about sanding the face plain..I simply did not feel like butchering the nice gold anodized surface of this tiny jewel and, managed to restore sealing in a non-destructive way. 40-50 years ago, and in places when and where hobbyshops sold abundance of COX engines, such a home surgery would have been a common practice..
I worked in aviation in my prime as a young engineer and learnt that the thread of bolts in the wing and fuselage of airplanes is extruded instead if cut/tapped, in order to avoid micro-crevises in the material, leading to fatigue breaks. But the threads of our COX engines were most likely cut and tapped. The very light and thin wall of the 010 TeeDee crankcase may have got distorted under the stress of thread tapping, leading to the uneven, jutting out face near the bolt area. I remember reading the tip about sanding the face plain..I simply did not feel like butchering the nice gold anodized surface of this tiny jewel and, managed to restore sealing in a non-destructive way. 40-50 years ago, and in places when and where hobbyshops sold abundance of COX engines, such a home surgery would have been a common practice..
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
balogh- Top Poster
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