The "Silver Lining" a start

Excellet Bob. I dont understand how to line up a bell crank and the differences its positioning makes to the flying characteristics. When I was younger I nearly always flew homemade versions of the dominator and liqidator combat wings and they seemed easy to setup. but with a fuse, bellcrank, length of nose to engine, length back to elevator, Ive got no idea. Now, when its comes to setting up a Grand Prix race bike to handle properly when its right on the edge, I really do understand. But planes, I read, and am trying to learn, and also building trying, observing when your flying the changes you have made to a plane or design is a very good learning tool. Hence quick cheap builds are also useful.

I do it the way that is a fun hobby for me. But I also understand that for others the super duper precise build with absolutely flawless paint and laquere etc. is what they love! and thats the really important part. Doing the hobby the way you enjoy it. and Modelling has so many facets for everyone.

My flight plan for the plane is launch, 1 level lap, wingover, loop, lazy 8, and if its still flying and in one piece its a better plane than me.

Yabby

Bit the bullet last night and glued it.  Spred it around with a brush and clamped it.  Added a rudder. Knife edged a 1" piece of balsa and beveled the other side.





This morning I started truing everything up.  



Firewall and top wing next.

Later...............

Did the firewall.  Thanks to the guy that invented splacking.

Bob, I think we are like the two brothers that no one believes had the same parents. Your jigger is really looking awesome and coming along really nicely. Great Job. My jigger is in paint as shown below and looks like it was made by a child without any support.

Hopefully the weather lets me get it out for an attempt at flying it during the week this week!



Reckon it will be my last Cox engine build for a while now. My friend back in the city has convinced mr to run-in my OS LA 15 thats been in its box from new for three years now. Im going to build a Yabby version of the Liquidator as I used to fly them when I was young. I used to have a Taipan Goldhead Nitro racing engine that I used in them but I cannot find it any longer. I dont think the OS LA 15 will come close to the Taipan Goldhead with its rear tuned pipe etc. So I will shorten up the wingspan from 32 inches to 28 inches and see how we go. I think my flying is back good enough to be able to fly one of them again (not well, but at least fly it ) and boy I used to love flying Liqidators and Dominators. they were being flown on almost every oval when I was young!

If I fly the jigger in the photo I will try and rig up something so as that my phone videos it whilst I try and fly it. Dont know how yet. but thats only implementation. Lol.



Yabby

Yabby

Looks great Yabby, the paint blended everything in.  Looks like the balance point is pretty close to where you hung it.  I have a couple of OS .15's.  Nice engines.  LA's too but larger displacements.  

Yesterday, two coats of Minwax sanding sealer, sanded between coats etc.



Built in a little rudder.




This morning





Thought about hogging out the wings stage with a Dremel.  Didn't think the 1/16 oz saved would be worth it.  Bottom wing next, one last coat of sanding sealer, attach elevator and engine, find the sweet spot and cut the opening for the bellcrank and paint.  




There is some accidental engine offset to the right.  Three maybe four degrees.  Didn't plan it, just happened and in the right direction. Noticable in the pictures above, a little heavier glue on one side perhaps.

The pre-airfoil balsa looks very handy indeed! I havent seen it in any of the actual pjhysical hobby shops ive been to in Adelaide. And Im a bit dubious about getting it on line, as far as it getting broken in delivery. I think it might have been yourself Bob that posted a year or more ago about a delivery of SIG airfoilf balsa that was badly dammaged in transit?

Love the perfect offset to the right in building. the gods are smiling on ya.

Yabby

I complained about the quality of the airfoiled balsa Yabby.  It just wasn't up to SIG's usual product.  What I got a couple of days ago is much better.



I'm like a dog with a bone with this thing.  Can't leave it alone.  Balsa is so much more fun than plastic.

Sorry for all the pictures. They tell a story that I can't with words alone.  Besides I hate to type!!

I didn't get much love here when I showed my hinge cutting method a year or five ago.  Works for me.  Simple and fast.  But I do trim the hinges a bit and round them off to fit the profile.  A dot of glue at each entrance and a pin or two.  Never have had one fail.  






Crunch time for cutting the slot for the bottom wing.  How do you cut it true.....simple.  Witness line on each side, vice it up and cut flat.  Airfoil wing will still need some fitting. And............splackling.  

Here are the plan and decals for the Silver Lining model from other thread. Perhaps a member want to build it in future

A4 sheet full size 1:1 plan link:
https://www.mediafire.com/file/6t94xr54btkrkb4/Silver_Lining_Plan_A4.png/file

A4 sheet decal page link:
https://www.mediafire.com/file/3libe7apdd65eq8/Silver_Lining_Decals_A4.png/file

Thanks Levent, I probably wouldn't even have attempted it without your help.

Starting to look like something:

An outline of the airfoils top in pencil and a half-round jewelers file worked N/S along the fusleage results in a tight fit.

Bob,
I like you hinge cutter. Great job building a knock apart tool platform!

But, more important to me is the rotary tool. I like vintage Craftsman tools, and see these rotary tools on eBay right now. This is one of those tools I'd consider owning, even if off-brand (ex: Harbor Freight's version/kit).

Can you describe any inherent detractors to it?
Does it take/use commonly available "Dremel" type bits?
Can the rpms be adjusted via external methods, such as a lamp dimmer or sewing machine pedal?

I guess I'm asking for a brief tool review.
Inquiring minds would like to know...thanks in advance.

I have several of them Jim, all have speed controls.  The best of the bunch is the Craftsman with a precise speed control. The Dremel is a close second but the speed control is sloppy.  The battery powered ones are junk, not enough torque.

The appliances have different shaft sizes but there are collets to accomidate them.  Universal fit among all.

Craftsman is a name, not a tool manufacturer. The tool shown is more than likely made by Dremel. I have a Dremel Multipro 395 type 5 and it's exactly identical to that Craftsman.

Craftsman is a name, not a tool manufacturer. The tool shown is more than likely made by Dremel. I have a Dremel Multipro 395 type 5 and it's exactly identical to that Craftsman. Just like the vintage Craftsman wrenches. They were made by EASCO and I used to buy direct from them.

Craftsman is basic a Sears stencil name with whomever they contract with for tools, usually reserved for the better quality tools. Sears is reserved for the cheaper stuff.

My Craftsman 25 Gal. 3.5 HP (6.5 stall HP - why they advertised this in the early 2000's for the same beats me) air compressor from the late 1990's says Devilbliss on the underside, stamped into the tank.

Been playing with tissue stencils and Rustoleum Metallic Silver spray paint …. Applied to a 3” high piece of poster board…. Same as wing chord…Getting a little closer  

I might be carrying this squared up thing a bit too far.



Starting to see the light at the end of the tunnel.  I thought the landing gear on the original to tall so I shortened it a bit.  Wheels will be sanded down less round and  slimmer.





I'm going to try to duplicate the tail skid.  Looks like the PO curled it in the wrong direction, maybe for a stooge.  I may slice a quarter inch off the elevator and round the corners of the wings. Amazing when you see some things side by side that escaped attention.



Finger lifting shows the CG just forward of the trailing edge of the top wing.  It will get into the firewalls bolster presenting a problem for bellcrank installation.  I might have to do some hacking.

Still some filling to do, I have beaten it up somewhat finishing it.

Stencils looking good Robert.

Thanks Bob, When I cut the stencil I made four at the same time….You are welcome to a couple if you like, Just drop me a PM…. You may have other arrangements and that’s fine as well

The dots you see in the photo before painting are weights to hold the edges of the paper down …. I used # 4 shot shell pellets slightly flattened with a small hammer…. Set them in place with tweezers then spray…. Then remove fairly quick to keep the paper from sticking to the work surface….A little tedious but not too bad….

You’re replica is looking nice…. A very close copy!! … I’m sure the original builder and even the person that won the auction could not have imagined such a fuss over the little plane…. Sometimes going the long way around is a better ride anyway…

Robert

That was Roger Harris that did the kits for RM Bipe That engine looks nice after getting the goo out ,,, I see your getting some friends building the Silver Lining ! Just got to 2nd page .

getback wrote:That was Roger Harris that did the kits for RM Bipe  That engine looks nice after getting the goo out ,,, I see your getting some friends building the Silver Lining ! Just got to 2nd page .

Thanks Eric, yes Roger Harris, thanks for being my memory.

Yes............jump in, I know you have a Babe Bee or several dozen and probably many board feet of balsa. Five boards, a little glue, two days and a wake-up.

While balancing this thing I realized that I had not made a canopy, probably wouldn't affect balance as it's right over the CG, but got to it anyway.






Enough for now, seems the PO painted it silver so it will go on after the plane is completed. My shakey hands ought to duplicate the "pilots" blotches exactly.



Rounded off the wing tips and the trailing edge of the elevator.  Took a quarter inch off the elevators width.

Thanks Robert. PM sent.

Looking great Bob, Yes, Has to have the canopy to keep its character!! Replied to your PM

My version is going to be Silver Lining lite….The motor and gear box is from a cheapie drone a guy from work gave me…. The timer is for free flight E -20 that doesn’t have a job right now…. It has a super light micro switch I’m going to try and rig to self start with a blip of down elevator..,

The motor puts out 36 grams thrust on my home made Thrust - O - Meter….I recently put one on this 14” Guided Mite single channel and I flies it fine on about 75% power….





I fly some micro RC right at the house when the wind is calm…May as well try CL too…. May be a flop but will give it a shot

Your S/L is looking sooo nice Robert. Perfect straight cuts.

We are using the same bellcrank and I'm agonizing about where to place it. I cannot put it exactly at the CG as it would be to far forward almost to the firewall. I'm thinking it will wind-up about where your's is and I will add some tail weight.

Thanks Bob, It’s a fun little project

I located the bell crank opening center about 1/8 forward of the lead out guide center for a little line rake….The article states not much off sets are needed but does mention some fin off set and also keep the weight forward….. It also said they never built the 1/2 A version so we are a little on our own here….
I think if you hang and balance it like you did on the P-26 should get in the ball park