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Cox Engine of The Month
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
![](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
Fun with Generic, Non-Threatening Title
Page 2 of 3
Page 2 of 3 • 1, 2, 3
Re: Fun with Generic, Non-Threatening Title
GallopingGhostler wrote:A lot of ingenuity and quality handiwork, roddie, I'm looking forward to your finished product and flight report.![]()
George, Thanks! I edited; adding more description/photos as you were posting.
mount fail
Well.. we're getting there.. but not with a bottom clamping-action.
but I'm not a quitter!
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02523](https://i.servimg.com/u/f19/18/50/45/90/dsc02523.jpg)
A top slit lengthwise instead, may be the answer. I'll have to cut another length of pipe though. The top of the case is the issue.. therefor; the pipe needs to be notched more in the center.. and less toward the nose, for the engine to snap into place.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02525](https://i.servimg.com/u/f19/18/50/45/90/dsc02525.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02526](https://i.servimg.com/u/f19/18/50/45/90/dsc02526.jpg)
That single rail/mount on the right side of the case could be filed-down some.. and rounded to the contour of the pipe. The slot for it could also be closed on the end. There's about .100" of clearance between the rail and the spring-starter housing.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02527](https://i.servimg.com/u/f19/18/50/45/90/dsc02527.jpg)
You gotta' admit.. it sure would be a streamlined nacelle.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02528](https://i.servimg.com/u/f19/18/50/45/90/dsc02528.jpg)
![DAMMIT!](/users/3015/29/34/60/smiles/2949197080.gif)
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02523](https://i.servimg.com/u/f19/18/50/45/90/dsc02523.jpg)
A top slit lengthwise instead, may be the answer. I'll have to cut another length of pipe though. The top of the case is the issue.. therefor; the pipe needs to be notched more in the center.. and less toward the nose, for the engine to snap into place.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02525](https://i.servimg.com/u/f19/18/50/45/90/dsc02525.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02526](https://i.servimg.com/u/f19/18/50/45/90/dsc02526.jpg)
That single rail/mount on the right side of the case could be filed-down some.. and rounded to the contour of the pipe. The slot for it could also be closed on the end. There's about .100" of clearance between the rail and the spring-starter housing.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02527](https://i.servimg.com/u/f19/18/50/45/90/dsc02527.jpg)
You gotta' admit.. it sure would be a streamlined nacelle.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02528](https://i.servimg.com/u/f19/18/50/45/90/dsc02528.jpg)
Re: Fun with Generic, Non-Threatening Title
I never noticed this small hole between the guide-rails.. It was hard to photograph. It doesn't seem like it would have been functional..
Anybody have a pic of the mating-mount in a Testors ARF model?
Nobody ever saved the broken airplane.. just the engine! If you still had the model.. the engine would probably be in it. Of course.. if you had a fuse, you could bench-run the engine by clamping the fuse to a sawhorse!!
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02611](https://i.servimg.com/u/f19/18/50/45/90/dsc02611.jpg)
![Huh...](/users/3015/29/34/60/smiles/3929217648.gif)
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
![Laughing](https://2img.net/i/fa/i/smiles/icon_lol.gif)
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02611](https://i.servimg.com/u/f19/18/50/45/90/dsc02611.jpg)
Re: Fun with Generic, Non-Threatening Title
Work of art roddie. New life for a purpose built engine. Could the same thing be done with like diameter aluminum tubing? Might save some weight but machining would be more difficult.
rsv1cox- Top Poster
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Re: Fun with Generic, Non-Threatening Title
Good job, Roddie. I'd passed on the PVC path, but I'm glad you ran with it so we could see how it comes out. I've settled on two different mount designs, one heavy and one light. I deviated from my mount building to build a fuselage to mount the engine in. It's not supposed to rain Thursday, so maybe I can test fly it then and know if this is feasible or just an interesting experiment.
The Deviant Mark
The Deviant Mark
batjac- Diamond Member
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Join date : 2013-05-22
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Location : Broken Arrow, OK, USA
Re: Fun with Generic, Non-Threatening Title
rsv1cox wrote:Work of art roddie. New life for a purpose built engine. Could the same thing be done with like diameter aluminum tubing? Might save some weight but machining would be more difficult.
The PVC has promise.. because of the way it's made. I believe it's extruded.. and being as rigid/dense as it is; permits slicing end to end.. having it spring-back against itself. This would allow for a squeeze-fit.. providing it's notched correctly to fit around the top of the case and cylinder. To tell you the truth.. the ear/rail on the side of the case could be trimmed off completely.. because the engine is now being held at the top of the case.
Re: Fun with Generic, Non-Threatening Title
Pipe bomb speed!! I love it.
Phil
Phil
chevyiron420- Gold Member
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Age : 66
Location : Barney Georgia
Re: Fun with Generic, Non-Threatening Title
chevyiron420 wrote:Pipe bomb speed!! I love it.
Phil
Yea.. it seems like a worthy endeavor for this little engine that's so despised for it's post-wreck non-usability. Imagine a stubby little speed model.. with a 12" wingspan.. 30 foot lines..
![Affraid or WOW!](https://2img.net/i/fa/i/smiles/affraid.gif)
For anyone wanting to give the 3/4" PVC pipe-mount for Mark's modified Testors back-plate engine a try; I cut my pipe to 2.125" long. This should provide room to hold the engine.. with room behind it to utilize a 3/4" hardwood-dowel firewall. I'll see if I can get V.2 worked out tomorrow. I'm going to trim/remove that channel/rail-mount from the side of the case and eliminate the slot in the pipe for it. This will help the pipe close tighter around the top case-edges better. The cylinder and the raised cylinder-boss on the case will lock the engine in place in the pipe.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02612](https://i.servimg.com/u/f19/18/50/45/90/dsc02612.jpg)
Re: Fun with Generic, Non-Threatening Title
Okay. I finally got some time to get back to the Testors mount. This is what I’m going with right now. It’s not elegant, not sleek, and not polished. But it’s made of scrap wood so it’s cheap. It only weighs 12 grams bare before fuel proofing. And it clamps the engine in tight. It looks unwieldy, but there’s a reason for the shape. I put that rear try on it so I could use it to hold a fuel tank. And the width was chosen for the airframe I plan to put it in. I figure I’ll make a variant of the coroplast PT-19 fuselage for this, but with a fixed stabilizer rather than a stabilator. So the width of this mount is the same as that of the formers for the coroplast PT.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3445_zpspdyesav3](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3445_zpspdyesav3.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3443_zpss19vdcgh](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3443_zpss19vdcgh.jpg)
Here is somewhat how it will look in the new airframe. This is the airframe for the Medallion powered PT-19 I made, so on the next fuselage I’ll be making a different cylinder cutout and different mounting screw holes. But you get the idea.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3450_zpsthda0dcu](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3450_zpsthda0dcu.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3455_zpsn3gwrdrt](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3455_zpsn3gwrdrt.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3456_zpsz1vvtdny](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3456_zpsz1vvtdny.jpg)
I keep thinking I may just cut the fuel tank tray off the back and save the weight. Cut down, I’d imagine the weight would only be 6 or 7 grams. I’ll have to remember to weigh it with the engine in place.
The Bare Mark
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3445_zpspdyesav3](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3445_zpspdyesav3.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3443_zpss19vdcgh](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3443_zpss19vdcgh.jpg)
Here is somewhat how it will look in the new airframe. This is the airframe for the Medallion powered PT-19 I made, so on the next fuselage I’ll be making a different cylinder cutout and different mounting screw holes. But you get the idea.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3450_zpsthda0dcu](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3450_zpsthda0dcu.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3455_zpsn3gwrdrt](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3455_zpsn3gwrdrt.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3456_zpsz1vvtdny](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3456_zpsz1vvtdny.jpg)
I keep thinking I may just cut the fuel tank tray off the back and save the weight. Cut down, I’d imagine the weight would only be 6 or 7 grams. I’ll have to remember to weigh it with the engine in place.
The Bare Mark
batjac- Diamond Member
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Re: Fun with Generic, Non-Threatening Title
Wood engine mount system and plane look great Mark, waiting for test report, excellent work and ingenuity.
![Beer Cheers](/users/3015/29/34/60/smiles/1848667513.gif)
GallopingGhostler- Top Poster
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Re: Fun with Generic, Non-Threatening Title
Nice job Mark!
The 3/4" PVC would be a lot heavier I think.. but if I can get the engine to snap-in and hold securely, I could try a cool firewall mount for a profile fuse that I sketched-out last night. I think I'm going to have to cut that slotted rail off the side of the engine's case to make this work.. It's too close to the front-limit of the case-fit and a slot for it really weakens the pipe's clamping ability. I need a 3/4" hole-saw and don't have one in my assortment..
I used a paddle-bit to drill the first prototype's hole.. and it's wack.. not to mention hard to do.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02613](https://i.servimg.com/u/f19/18/50/45/90/dsc02613.jpg)
I'm cutting another length of pipe to slot differently. If I can source a smaller hole-saw, I'm hoping to only have to cut a 2nd full-length (razor-saw) cut..to create a slot slightly narrower than the case and one hole-saw cut strategically-placed in between to surround the cylinder.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02614](https://i.servimg.com/u/f19/18/50/45/90/dsc02614.jpg)
Good luck with flying your coroplast variant!![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
![Rolling Eyes](https://2img.net/i/fa/i/smiles/icon_rolleyes.gif)
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02613](https://i.servimg.com/u/f19/18/50/45/90/dsc02613.jpg)
I'm cutting another length of pipe to slot differently. If I can source a smaller hole-saw, I'm hoping to only have to cut a 2nd full-length (razor-saw) cut..to create a slot slightly narrower than the case and one hole-saw cut strategically-placed in between to surround the cylinder.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02614](https://i.servimg.com/u/f19/18/50/45/90/dsc02614.jpg)
Good luck with flying your coroplast variant!
![Thumbs Up](/users/3015/29/34/60/smiles/1541798026.gif)
Re: Fun with Generic, Non-Threatening Title
So I got this almost wrapped up. For landing gear I made this a mono-wheel to save time and weight. Besides, I only had one wheel sitting on the table unclaimed. This pretty much turned into a little Testors power pod, which seems like a decent result. Put together, the power pod weighs 3.1 ounces, or 90 grams.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3467_zpsas3f31iv](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3467_zpsas3f31iv.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3469_zpszwgon07q](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3469_zpszwgon07q.jpg)
The airframe is done with the exception of bending up an elevator pushrod. It weighs 3.95 ounces.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3471_zps9ppbice3](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3471_zps9ppbice3.jpg)
So, guessing that the pushrod and various screws will add a couple of tenths of an ounce, we’ll call the estimated ready to fly weight at 7.3 ounces. This compares favorably with the Cox Bee powered coroplast PT-19 I built at 7.65 ounces. I’ll post the actual if I remember to weigh it. It’s the middle of the night, so I’ll get assembled pictures tomorrow after I make up the pushrod.
The Forgetful Mark
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3467_zpsas3f31iv](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3467_zpsas3f31iv.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3469_zpszwgon07q](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3469_zpszwgon07q.jpg)
The airframe is done with the exception of bending up an elevator pushrod. It weighs 3.95 ounces.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3471_zps9ppbice3](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3471_zps9ppbice3.jpg)
So, guessing that the pushrod and various screws will add a couple of tenths of an ounce, we’ll call the estimated ready to fly weight at 7.3 ounces. This compares favorably with the Cox Bee powered coroplast PT-19 I built at 7.65 ounces. I’ll post the actual if I remember to weigh it. It’s the middle of the night, so I’ll get assembled pictures tomorrow after I make up the pushrod.
The Forgetful Mark
batjac- Diamond Member
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Re: Fun with Generic, Non-Threatening Title
Okay. Ready for the weather to clear up and test fly. The airframe is ugly, but it’s only meant to be a quick fixture to hold the Testors engine. Gentlemen and Lady, I present The Pipe Bomb Special:
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3472_zpscohpeiaj](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3472_zpscohpeiaj.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3473_zps6imipcpk](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3473_zps6imipcpk.jpg)
I only built the fuselage, the wing I pulled off of one of the PT-19’s I built earlier. I deviated from Keith Morgan’s plans in that I made a stab and elevator instead of a stabilator. I thought about making a separate hinge for the elevator and stab, but as this was just a quick and dirty build, I just slotted the coroplast for the hinge.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3475_zps3krew0yx](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3475_zps3krew0yx.jpg)
The Ugly But Functional Mark
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3472_zpscohpeiaj](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3472_zpscohpeiaj.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3473_zps6imipcpk](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3473_zps6imipcpk.jpg)
I only built the fuselage, the wing I pulled off of one of the PT-19’s I built earlier. I deviated from Keith Morgan’s plans in that I made a stab and elevator instead of a stabilator. I thought about making a separate hinge for the elevator and stab, but as this was just a quick and dirty build, I just slotted the coroplast for the hinge.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3475_zps3krew0yx](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3475_zps3krew0yx.jpg)
The Ugly But Functional Mark
batjac- Diamond Member
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Re: Fun with Generic, Non-Threatening Title
Congratulations Mark! Did the weight come in where you expected? What size is that gear strut wire? It looks heavy to me..
Does the model balance comparable to your other variants? You're RTF engine-pod is approx. .5oz. heavier than a Baby Bee engine w/prop.. so removing that strut and wheel might make a big difference in how well it fly's.
FWIW.. I don't think it's ugly at all. Do you have a 1.25" plastic spinner? Slotting the top of the fuse for a profile canopy would dress it up some.
![Shocked](https://2img.net/i/fa/i/smiles/icon_eek.gif)
FWIW.. I don't think it's ugly at all. Do you have a 1.25" plastic spinner? Slotting the top of the fuse for a profile canopy would dress it up some.
Re: Fun with Generic, Non-Threatening Title
Great all around effort Mark. Looks great, but a bubble canopy would dress it up.
roddie, you would be surprised just how light that nose wheel is. I have a couple and I couldn't believe the lightness.
From the peanut gallery..........
Bob
Hmmm....Just did a search for a small/1/2A canopy on Omni & Tower +ebay. Seems they are difficult to find.
roddie, you would be surprised just how light that nose wheel is. I have a couple and I couldn't believe the lightness.
From the peanut gallery..........
Bob
Hmmm....Just did a search for a small/1/2A canopy on Omni & Tower +ebay. Seems they are difficult to find.
Last edited by rsv1cox on Sat Apr 11, 2015 7:41 am; edited 1 time in total
rsv1cox- Top Poster
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Re: Fun with Generic, Non-Threatening Title
Looks Pretty Good there Mark, hope it flies Ok for you (report please) Good to see your putting that stuff to good use . Eric
Those wheels are really light Bob just read your post and had to go back and LOOK
![Easter Bunny](/users/3015/29/34/60/smiles/3729839039.gif)
![lol!](https://2img.net/i/fa/i/smiles/lol.gif)
Last edited by getback on Sat Apr 11, 2015 7:41 am; edited 1 time in total (Reason for editing : add on)
getback- Top Poster
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Re: Fun with Generic, Non-Threatening Title
Slice up a pop bottle to get a canopy, or recycle some packaging.
Looks good.
Phil
Looks good.
Phil
pkrankow- Top Poster
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Re: Fun with Generic, Non-Threatening Title
http://www.ebay.com/itm/Enterprise-Blue-Chip-Store-Display-Accessory-Pack-NIB-/301273257243rsv1cox wrote:Great all around effort Mark. Looks great, but a bubble canopy would dress it up. [...] Hmmm....Just did a search for a small/1/2A canopy on Omni & Tower +ebay.Seems they are difficult to find.
![Fun with Generic, Non-Threatening Title - Page 2 Enterp10](https://i.servimg.com/u/f19/18/91/97/52/enterp10.jpg)
Penn Valley Hobby Center wrote:Enterprise Blue Chip Store Display Accessory Pack. Contents include, 12 1-¼” Spinners with back Plate, 8-3” Canopies, 12-4” Canopies, 24-½” Pilots and 18-1” pilots. Neat Collectable. New Old Stock.
$10 + $6 shipping. I bought one, the canopies are suitable for both 1/2-A CL planes, FF and rubber powered, comes with matching pilots ready to paint.
Mark, it looks excellent, with a bubble canopy it'd look like a generic WW2 fighter, like a lot of CL's do.
GallopingGhostler- Top Poster
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Re: Fun with Generic, Non-Threatening Title
roddie wrote:Congratulations Mark! Did the weight come in where you expected? What size is that gear strut wire? It looks heavy to me..Does the model balance comparable to your other variants? You're RTF engine-pod is approx. .5oz. heavier than a Baby Bee engine w/prop.. so removing that strut and wheel might make a big difference in how well it fly's.
Roddie, the weight came out about where I expected. Final weight was 7.4 ounces after balancing. It was slightly nose heave at first, but easily fixed. This shows two more great things about building with coroplast. To find the balance, just mark the balance point on the wing, make a couple of needle holes, and pass a thread through the holes to suspend the plane. To balance the plane, I use a hot glue gun. I use the gun to fill the flutes at the back of the plane with glue. That allows me to add a couple of grams at a time until the plane balances out just right.
![Fun with Generic, Non-Threatening Title - Page 2 DSCN3479_zpsjjlv4oa6](https://2img.net/h/i32.photobucket.com/albums/d26/batjac/DSCN3479_zpsjjlv4oa6.jpg)
The gear wire is 1/16". That's about as small a diameter I can go without it being too bendy.
The Expectant Mark
batjac- Diamond Member
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Location : Broken Arrow, OK, USA
Re: Fun with Generic, Non-Threatening Title
GallopingGhostler wrote:http://www.ebay.com/itm/Enterprise-Blue-Chip-Store-Display-Accessory-Pack-NIB-/301273257243rsv1cox wrote:Great all around effort Mark. Looks great, but a bubble canopy would dress it up. [...] Hmmm....Just did a search for a small/1/2A canopy on Omni & Tower +ebay.Seems they are difficult to find.
$10 + $6 shipping. I bought one, the canopies are suitable for both 1/2-A CL planes, FF and rubber powered, comes with matching pilots ready to paint.
Mark, it looks excellent, with a bubble canopy it'd look like a generic WW2 fighter, like a lot of CL's do.
I saw those before, but I didn't realize how much stuff came in the package. I just ordered one. That should give me a little material to work with.
The Planning Mark
batjac- Diamond Member
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Re: Fun with Generic, Non-Threatening Title
batjac wrote:roddie wrote:What size is that gear strut wire? It looks heavy to me..![]()
The gear wire is 1/16". That's about as small a diameter I can go without it being too bendy.
The Expectant Mark
The gear wire looked a lot bigger in the above photo. Have you had a chance to get a flight in? How did you go about removing the tank to end up with the round back-end?
Re: Fun with Generic, Non-Threatening Title
roddie wrote: Have you had a chance to get a flight in? How did you go about removing the tank to end up with the round back-end?
No flight yet. Still raining. I have to wait a couple of days after rain because I fly from a grass field that's soggy after a rain.
To cut the tank, I just used a razor saw and cut the back of the tank off where the air tube is. That leaves about a quarter of an inch where the round portion is. I then used an aluminum sanding block to square it up, and then trim off all the fuzz with an X-Acto knife. Quick and easy.
The Soggy Mark
batjac- Diamond Member
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Age : 61
Location : Broken Arrow, OK, USA
Re: Fun with Generic, Non-Threatening Title
batjac wrote:roddie wrote: Have you had a chance to get a flight in? How did you go about removing the tank to end up with the round back-end?
No flight yet. Still raining. I have to wait a couple of days after rain because I fly from a grass field that's soggy after a rain.
To cut the tank, I just used a razor saw and cut the back of the tank off where the air tube is. That leaves about a quarter of an inch where the round portion is. I then used an aluminum sanding block to square it up, and then trim off all the fuzz with an X-Acto knife. Quick and easy.
The Soggy Mark
Thanks Mark. What a drag.. You must be Jones'n to fly.. given the several models you've built over the last year. I've lost count.. but there's the Lil Toot last April.. the Pee Wee-modified Sea Fury, the 3 BTC series models, the Coro-Plast Duplex Delta and PT-19's... Holy crap!
I removed the back of the tank by cutting along the "flat".. so my air-intake will share the needle-access hole in the side of the pipe. I'll try filing a notch through the housing to expose the fuel-nipple. A 1/2" hole through the pipe should allow clearance for the needle on one side.. and R & R of fuel-line on the other.
![Fun with Generic, Non-Threatening Title - Page 2 Dsc02615](https://i.servimg.com/u/f19/18/50/45/90/dsc02615.jpg)
I found a 3/4" hole-saw to hopefully form a saddle to surround the engine cylinder's base in my PVC pipe-mount.
![Fun with Generic, Non-Threatening Title - Page 2 Hole-s10](https://i.servimg.com/u/f19/18/50/45/90/hole-s10.jpg)
Re: Fun with Generic, Non-Threatening Title
Has there been a test flight on the pipe bomb special yet?
chevyiron420- Gold Member
- Posts : 251
Join date : 2015-01-28
Age : 66
Location : Barney Georgia
Here is a P51 One Screw Wonder
Here is a dis-assembly of a Testors P51. I call it the One Screw Wonder, because it is held together by only one screw!! Not anywhere near the complexity of a Cox Stutka. Remove just one screw from the bottom, gently lift the plastic belly pan up and away from the fuse. take a long thin pry bar ( kitchen knife i=or screwdriver) and pry up on the locating pins on the port and starboard wings. Pop them free and continue to twist the belly pan back and forth while pulling back untill the motor pops free of the front cowl. BINGO totally dis assembled. the one piece landing gear assembly is held in place by the single screw that hold the top and bottom together, while the bell crank is held in position on a plastic shaft or pin between the top and bottom. SO easy...even a caveman could do it!!
![Fun with Generic, Non-Threatening Title - Page 2 P51mac10](https://i.servimg.com/u/f18/19/10/39/29/p51mac10.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac11](https://i.servimg.com/u/f18/19/10/39/29/p51mac11.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac12](https://i.servimg.com/u/f18/19/10/39/29/p51mac12.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac13](https://i.servimg.com/u/f18/19/10/39/29/p51mac13.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac14](https://i.servimg.com/u/f18/19/10/39/29/p51mac14.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac15](https://i.servimg.com/u/f18/19/10/39/29/p51mac15.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac16](https://i.servimg.com/u/f18/19/10/39/29/p51mac16.jpg)
I tried to get a good picture of the engine mount. The front cowl has a cut out for clearance of the the spring on the rotomatic starter. The engine just rests on the plastic
"formers" and is held in place by the Clamshell of the upper and lower assembly, with openings located for the fuel drop and Needle Valve. This one looks to have been run with the original small amount of fuel that was packaged with the "FLY-EM" package and then stored away. I cleaned up the engine and it started right up with a few flicks of the starter. Ran a slobery rich tank and the refilled it and needled it up to 12500 RPM
Sat it down( unrestrained ) on the workbench (stooge) and as I was reaching for the camera, she leaned out screaming a DRAMIATIC increase of RPMs and flew off the work bench about 6-8 ft ran out of gas and landed in the weeds!! IT Runs it Flys, but I don't think with the small tank size that it would last two or three minutes in the air.
![Fun with Generic, Non-Threatening Title - Page 2 P51mac10](https://i.servimg.com/u/f18/19/10/39/29/p51mac10.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac11](https://i.servimg.com/u/f18/19/10/39/29/p51mac11.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac12](https://i.servimg.com/u/f18/19/10/39/29/p51mac12.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac13](https://i.servimg.com/u/f18/19/10/39/29/p51mac13.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac14](https://i.servimg.com/u/f18/19/10/39/29/p51mac14.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac15](https://i.servimg.com/u/f18/19/10/39/29/p51mac15.jpg)
![Fun with Generic, Non-Threatening Title - Page 2 P51mac16](https://i.servimg.com/u/f18/19/10/39/29/p51mac16.jpg)
I tried to get a good picture of the engine mount. The front cowl has a cut out for clearance of the the spring on the rotomatic starter. The engine just rests on the plastic
"formers" and is held in place by the Clamshell of the upper and lower assembly, with openings located for the fuel drop and Needle Valve. This one looks to have been run with the original small amount of fuel that was packaged with the "FLY-EM" package and then stored away. I cleaned up the engine and it started right up with a few flicks of the starter. Ran a slobery rich tank and the refilled it and needled it up to 12500 RPM
Sat it down( unrestrained ) on the workbench (stooge) and as I was reaching for the camera, she leaned out screaming a DRAMIATIC increase of RPMs and flew off the work bench about 6-8 ft ran out of gas and landed in the weeds!! IT Runs it Flys, but I don't think with the small tank size that it would last two or three minutes in the air.
Marleysky- Top Poster
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
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» 1/2a arf or all ready build
» Carolina Classic at Huntersville, NC---same thread, better title
» Or not---- it is .049 powered
» Carolina Classic at Huntersville, NC---same thread, better title
» Or not---- it is .049 powered
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