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Post  getback Sat Oct 22, 2022 8:06 am

Very Nice !! Your building technics are excellent, love the jig you made for the wing tips to dry . Very Happy
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Post  rdw777 Sat Oct 22, 2022 10:58 am

Humble thanks CEF FRIENDS ….. Happy birthday Andras Very Happy …. Please have a wonderful day!!!
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Post  balogh Sat Oct 22, 2022 11:14 am

Thank you Robert. You have a sharp eye to discover that! Hand Shake
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Post  rdw777 Fri Nov 11, 2022 5:16 pm

Slow but a little progress…. Made the stab bolt on… My Schoolmaster had that feature and I liked it to be able to fiddle with incidence…

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I made the servo tray from 1” insulation foam…. Left it a little long in front to help the unsupported balsa under the wing…

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The two 150 mah cells need to go far back as possible to keep from being nose heavy…. Have figure out access….Right now the airplane as it sits with all its gear, wing, etc,  is at 85 grams…. Hoping to finish up at 110 or so…
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Post  rsv1cox Fri Nov 11, 2022 6:12 pm

Slow but steady wins the race Robert.

Neat the bolt on stab. Allows fine adjustments on your very light floater.
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Post  balogh Sat Nov 12, 2022 5:45 am

Very neat job, Robert. Every detail is very precise!

BTW why did you fix the tail section with bolts instead of glueing it to its place? For the ease of storage and/or transport to the field?
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Post  getback Sat Nov 12, 2022 6:08 am

Looking good , I got a question , are you using anything (hot glue) to keep the servos from moving ? Am sure they are tight in there and it's not a competition plane but just wondering . RC Plane Very Happy And yes I like the way the bolt on stab / stabilizer is configured , never seen this before .
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Post  rdw777 Sat Nov 12, 2022 6:42 am

Thanks guys Very Happy

Andras, If the wing was symmetrical I would just set everything on zero and glue it in…. Just not sure how the flat bottom wing will behave when pushed a bit….. Just leaving a little wiggle room to tune incidence if needed….I have a degree or so negative in the stab to begin ….Maybe a bit of over kill but I might need a little weight in the back anyway…

Eric, I wrap the servos with blue painter’s tape then use silicone to glue them into the block of foam… Can be reversed easily if needed…Works good on my electro planes
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Post  balogh Sat Nov 12, 2022 8:11 am

Robert, understood. My Pageboy - as far as I remember -  did not need any adjustment of the tail section, or if anything was needed, I could manage that with a slight trim of the elevator. I also leave the wing dowels a bit longer even if the rubber band is put on the front and rear dowels diagonally, because I fly over rough, grassy fields and the rubber band easily snaps off the dowel when the wing leading edge hits the weed...of course I must make almost everything a bit more sturdy than stock or the plans,  like swapping the hardwood leading edge with a carbon tube or square tube, because of the tough landing conditions.

Did you finally stay with the fishing line hinges? The elevator to stab fit looks awesome..

Looking forward to your maiden flight!
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Post  balogh Sat Nov 12, 2022 8:37 am

I also like your servo tray solution, Robert, for me, improvising the proper servo tray from plywood and/or balsa is always a pain in the neck..

For the 3 servos sitting side by side, do you have a single pit only or, 3 pits separated with some wall in between? If yes, is the wall the parent material of the insulation board, or, you wedged in some plywood as separation wall between the servos?

I also wrap the servos with scotch tape, especially those with the halves not having through-bolts to keep them together....those are the servos that drop their bottom when you push the servo arm a bit harder when mounting on the splined output shaft ..but if you glue the servo - with tape covering it - to the servo tray, how do you prevent the servo pit from being destroyed when you remove the servo and bits of the servo pit wall may be torn off?
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Post  rdw777 Sat Nov 12, 2022 5:03 pm

Hi Andras,

Thanks for the heads up on the wing dowels, I will install longer ones and for landing gear mount as well…. Those I have in now were basically pins to help with assembly…Yes, planing to stay with the fishing line hinge…. I still tug on them on the workbench from time to time to convince myself and they seem to be holding tight… Still to be proven in practice though…

The servo block is all one piece with hollows for each servo …. The center walls are only about 3mm thick but when the servos are glued in should kind of bind everything together….I’ll only silicone the long sides of the servo to glue them in so if needed in the future a long thin blade like a small box cutter could be slipped in to free them…. Yes, There is some risk to damage the foam but minimal if done carefully…

The mount  was roughed out with a knife then shaped with 80 grit paper glued on different shaped blocks of balsa and dowels …I plan to dope and seal the inside of the
fuse and glue the block in with silicone as well …. I’m hoping good for vibration damping and the whole thing could be peeled out if things went sour…

The most appropriate fuel tank for the small space is a balloon…. I’ve found your past posts on them and copied…. I’ve practiced several fillings and running the engine with it… Works great!!! Thank you sir!!

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Post  balogh Sat Nov 12, 2022 10:51 pm

Thanks for the explanations Robert!

Nice tank assembly there!

For the balloon tank, I use a small zip tie to fix the tank neck on the stopper. The zip tie will secure the tank neck on the stopper more securely than a rubber ring, IMHO.

You may want to double the tank material on the stopper by bending back the tank lip 1/2"  before you pull on the zip tie. Use filler tube of sufficient length so that you can pintch it with your fingers when you remove the filler syringe and plug it.

For tank installation I use a soft plastic wire to lead  the silicone tubes through the firewall and/or fuselage openings..the wire should have a diameter allowing it to run in the tube snugly...first lead the plastic wire ends into the fuel line openings from outside until the ends appear inside the fuse where you can grab them. Lead one end deep into the filler and the other into the feed line. Push the tank forward into the tank compartment while gently pulling on the wire, which will lead the tubes out through the firewall holes. Sorry if the above is a no brainer, I learnt the best use of the tank step by step alone so the above may help you too if this is your first experience with such tanks.
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Post  rdw777 Sun Nov 13, 2022 1:19 pm

Thanks for the additional notes on the balloon tank Andras…. I will put them to good use!!!…. I really like it as an option for small space or odd shape…. Plus consistent engine run…
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Post  MauricioB Mon Nov 14, 2022 10:36 pm

rdw777 Robert :
magnificent work !!... admirable its construction.
Servo tray: 10
Stabilizer support: 10
The quality of the model: 10
Hinges: 10
....10
....10
Clapping Clapping Clapping
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Post  rdw777 Tue Nov 15, 2022 9:23 am

Thank you Mauricio!!! I have found much inspiration here on
CEF!!!
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Post  rdw777 Fri Dec 09, 2022 1:11 pm

Well, I re-did the fishing line hinge and came out with a better result…. Bob pointed out earlier about tension on the hinge…. So I cut 1/4” off the stab and fin and made a new elevator and rudder hinged to a piece of 1/4” balsa…. Was able to put better tension on the fishing line…. Then glued the assemblies back on as a unit…. Thanks for the nudge Bob…

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Battery compartment…Lets me get to the bottom of the receiver to plug it in as well


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Switch mounted internally…. Activate by pull threads…. Throttle cable is a metal guitar string inside of a Teflon tube, The type that is sold for dispensing CA glue….. Same tubing for rudder pull guides…. I forgot about that rudder at an angle that might be odd for a normal control horn…. So I did a pull/pull arrangement on it….I did the same thing on the Schoolboy, You can just make them out in the photo in the beginning of this thread….The front bulkhead slides out to isolate the fuel compartment from the electronics…..

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Rudder horns are guitar string…. Polyester pull threads…..Rolled tissue couplings….
What color you think it’s going to be  lol!



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Post  rsv1cox Fri Dec 09, 2022 4:07 pm

Blue maybe..purplish....

I love the compartment cover and the perfectly cut circle for the mounting screw. It just disappears into the fuselage.
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Post  balogh Fri Dec 09, 2022 6:03 pm

Very precise and patient build, Robert, packed with smart ideas for which I especially thank you..I like your small micro-switch, and batteries..could you please share with us what type of switch and batteries these are?

Does the switch have a charger harness, or, only the battery connector and another wire to plug it in the receiver?
Are the batteries Li ion, or Ni metal hybrid? What is their Voltage and capacity in mAh? In my recently built Tigercat I connected a 300mAh and 400mAh battery in parallel to have 700mAh on board for the receiver and servos.

https://www.ebay.com/itm/122165361905?var=422401772210
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Post  getback Sat Dec 10, 2022 8:04 am

Blue and Red with the yellow trim LOL Looking good , glad to see you could find time to get back to it Cool The guitar strings are pretty cool idea Very Happy Got some nice fits too . RC Plane
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Post  Levent Suberk Sat Dec 10, 2022 10:15 am

Very good built Very Happy Need any decal? Very Happy Snowman Santa Lighting The Tree
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Post  andrew Sat Dec 10, 2022 1:22 pm

Beautiful work! I always enjoy your builds -- your precision and care are the marks of a master craftsman.
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Post  rdw777 Sat Dec 10, 2022 7:27 pm

A humble thank you gentlemen…. Really enjoying the build Very Happy

Andras, I made the switch harness, the power supply is two separate 150 mah lipo’s connected in series for 7.4 volts…. Then to a step down regulator with 5 volt output …. I’ll take some photos next shop time in a day or two and some of my testing gadgets along with further explanation …

Levent, Thanks for the decal offer, This one is all tissue trim similar to some of the old Top Flite kit trim schemes….. I do need to thank you though for the Carl Goldberg graphic that I found on the forum and applied to my Stuntman 23, Thank you sir!!

Robert

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Post  balogh Sun Dec 11, 2022 12:51 am

Robert your close up photos on your perfectly finished and coated planes shy me away from showing close ups on my planes..they look good when naked, but when it comes to covering them, well, I sometimes say that this can still be a good plane to fly but not one to enter a beauty pageant.. lol!
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Post  GallopingGhostler Sun Dec 11, 2022 5:10 am

Looks like the Pageboy is lightly glazed with a water based Poly. Finish is lighter when not colored, so what it makes for in its nakedness is good flying quality in its lightness. Back in 1973, my 20" Roaring 20 was finished that way, several coats clear dope with a splash of color.

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Post  getback Sun Dec 11, 2022 5:57 am

Robert , are you or do you dye your silk for this application ? Thanks Very Happy Never mind found this on page 1 >> I have a good stock of Japanese tissue that holds its color well…. <<< Rudolph
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