RE: Dave Patrick super cub
 

Nice clean engine install Andy, glad it worked out. I got the seats from a flea market, it was a dynaflite 1/4 cub interior kit..vacu formed seats. No longer made. If you can get some urethane foam it will accept paint. Kinda itchy to work with.

Bud

RE: Dave Patrick super cub
 

Here is who did mine : Stan Stockman http://www.rcdecals.com (864) 227-9214
3408 Hwy 25 South
Greenwood, SC 29646 fyi ...............te

RE: Dave Patrick super cub
 

Try as I might, I can't seem to get a close gap with the hinges supplied with the kit. The barrel is kinda wide. I had a hard time getting the slots deep enough with a #11 blade. I thought about putting a recess in the stab and fin to sink the barrel in or to just use ultracote and seal the gap so it looks better and prevent flutter. Suggestions anyone?s anyone?

RE: Dave Patrick super cub
 

I have the rudder in place and yet to epoxy the elev's. in. I also had to dig deeper for the elev's... hard wood there. I coated the barrel with vaseline before pushing the hinges in. Not worried about flutter on a cub...the real one has a gap.


Bud

RE: Dave Patrick super cub
 

Hi Rubyred, name is Andy. I am building the same DPM super cub and I am having the same trouble with the hinging. I peeled back a little of the covering on each end of the slot and with a razor I cut a v groove to accept the barrel of the hinge. I send pics. After the slot is cut, I stuck the covering back with a trim iron, very neat. I get a good tight gap but it can't be totally closed. They simulated a real cub by makeing both edges round and that will not allow for a toatally gap less joint. I don't think that a totally closed gap is not necessary in a slow flying cub. In my picture I get a very tight gap. Be careful not to squeeze the gap too tight as it will not give you enough travel.You can see a little trim tape used to fill the glue joint of the stab. The color is a little off but it still looks good.

RE: Dave Patrick super cub
 

Andy,thanks, good idea. Your rudder gap is more to my liking and I think I will give that a try.

RE: Dave Patrick super cub
 

I finally got around to my exhaust, after going through three pieces of 3/8"x 19" plumbers chrome plated copper pipe and a brake line bending tool and about five hours and many cups of coffee I have it done. The fuel fill and drain line is to the left of the picture on the side of the fuselage as is the overflow...I used the piece that the manual said glue into the slot at the bottom of the f/wall and mounted it here, hidden inside the cowl. The switch will go on the other side also hidden inside the cowl. Should have a unique sound with one header pipe shorter than the other? Still lots to do.


Bud

RE: Dave Patrick super cub
 

Bud, the exhaust looks really great. I got the pipe and gonna do mine the same way. I need to find a bender first. Anyone know where I can find some seats?

RE: Dave Patrick super cub
 

Bud,

Looks great, but I hate to be a party pooper, but for cooling isn't the exit supposed to be at least twice the size of the entry point?

Just asking

Lee

RE: Dave Patrick super cub
 

Lee,
Must not be so because the very expensive flex pipe they sell for this engine has the same diameter at both ends. I've never seen any as you mention.
you brought back memories of otis AFB....I spent some summer camps there when I was young and in the ANG out of andrews AFB, 1953 and 1954 as I remember. We had my favorite plane back then, the P51 before bringing in the F86.


Rubyred,
You can get a brake line bending tool at any automotive store...here's a picture of mine. You're on your own on the seats...I got lucky and found mine at a flea market from a discontinued dynaflite cub interior kit.

Bud

RE: Dave Patrick super cub
 

Bud,

Sorry, I wasn't very clear. I was speaking about the cooling holes for the engine and not the pipe. There isn't a big enough hole in the bottom of the cowl to allow hot air to escape. That ratio of cool air in/hot air out should be 1 to 2. Don't want your nice twin to burn up too quickly.

I do have good memories of Otis. My dad was an SP so as a kid everyone knew Lee Sr.'s son. It was great to have almost free run of the tar mat during open houses and stuff. My fondest memory was my dad taking me to the runway earlier in the morning, me still a little sleepy and still in my PJ's and we watched a squadron F4s "Light the Candle" on take off. What an awesome site.

Lee

RE: Dave Patrick super cub
 

Lee,
Guess I misunderstood....That's something to look into but after looking at Dick Pettit's cub with the same engine I see no enlarged exit hole. I have pictures of other DPM cubs and see none there either? Perhaps Dick Pettit can better answer that question.

I hear you on the early morning flights....what I liked about that time of day was the tails of F86's sticking just above the fog on the runway and you couldn't see the rest of the plane, talk about a picture!

RE: Dave Patrick super cub
 

Bud
Here are pics of my exhaust tube bending attempt. I tried using K&S brass tubing, but I couldnt get them soft enough not to kink after annealing them with a torch. You should see the pile of scrap tubing I have. Also is a pic of the tail brace that I used instead of the wires in the kit. Not quite like the full scale ones you posted earlier, but better than the kit wires IMHO. Did you ever get the PM I sent in my last trip to Laytonsville? Sometimes my Spam filter doesnt recognize RCU.

RE: Dave Patrick super cub
 

I'm having trouble getting the pic to post????

RE: Dave Patrick super cub
 

Hi Ric,
Yes I did get your pm,thanks. When you post pics did you go to the bottom of your message area when you hit reply? Click on where it says "click here to upload". I went to home depot and bought the 19" long x 3/8" bathroom pipe that hooks up from the water jacket to the line in. It's chrome plated copper and mine was $1.98...took me three of them to get it right and it will kink if you're not careful,mine did and I just squeezed it out as best I could on my vise. How's your progress? I'm now starting on the wing flaps and ailerons. Still need to buy a spinner.

Bud

RE: Dave Patrick super cub
 

Bud
Yes, I did all that with the pics. It tells me its uploading, uploading complete, I hit ok and then no pics. Mystery.

I wound up using the same pipes as you describe, the brass was a bust. I am now working on putting some detail in the inside cabin. I made some floors, and I am using some vinyl material to line the insides of the cabin wall. I will make seats out of foam board and try to cover them with the same vinyl material.
Aside from balancing, the cub is complete and ready to fly, this effort is fill in till the weather gets better. I bought the spinner from Dave Brown with the discount coupon that came with the kit. I bought the "standard" 3 inch dia., its more curvy than the ultimate version.

RE: Dave Patrick super cub
 

Hey, it worked that time! I'll try more

RE: Dave Patrick super cub
 

Looks real good Ric, now that you have yours done check out this link someone sent me.
http://www.keleo-creations.com/Twins/OS.htm
What are those blue sleeves? I like!


Bud

RE: Dave Patrick super cub
 

Has anyone had trouble getting the correct throws on the ailerons as suggested in the manual which is 1 3/8" on hi rates? If I do I end up with a 3/16" gap on the bottom side of the wing and a noticable gap on top. Haven't glued anything yet.

Bud

RE: Dave Patrick super cub
 

Hi Bud I had same problem. The instructions infer this by saying you might have to stand off. I got my throws and have a gap like you. I set my flaps so they were even with the ailerons and it dosn't look to bad. Only thing is they don't align with the wing tip.

RE: Dave Patrick super cub
 

Hi rubyred,
That's the part I forgot to mention....it doesn't align with the wing tip. Thought for a minute it was just me having that problem. Thanks,


Bud

RE: Dave Patrick super cub
 

Bud
I was aware of the Keleo exhaust extensions. I didnt go for them because I was concerned about clearing the inside of the cowl. The angle of the exhaust pipe has to come close to the engine crankcase to stay inside of the cowl, especially for the left cylinder which is offset closer to the prop by a small amount. They look like they have the right shape, but the actual dimensions are key. Also, where they come out of the bottom has to be right. The only way to find out is to buy one, kind of expensive experiment. I got the blue silicon tubes from a hobby shop, they are used to attach tuned pipes to mufflers. They come in various sizes. also had a little trouble getting the full throw on the aerilons, I compromised between making a grotesque gap or less throw. I got about 1 1/4 ". My Sig 1/4 scale cub has been flying well for years with less throw than that. If you mix in rudder, the result is even better.

RE: Dave Patrick super cub
 

Bud, To bad those wing tips were just maybe an 1/8 longer then it would be fine.

I have been talking with Keleo on his exhaust for the OS 160. Apparently with some pictures of the engine installation mainly head on and at 90 degrees to the firewall he can lay a protractor on it and setup his jig. I told him about my concern of the right cylinder exhaust hitting the cowl and he is going to see what he can do about that clearance. He is busy now so Im waiting for a time table on when he can get to mine

RE: Dave Patrick super cub
 

Here is some pics of what I was able to do. Hope this works

RE: Dave Patrick super cub
 

Thanks Ric and rubyred......still haven't epoxied anything yet, will give this some thought, good pictures.

Bud

RE: Dave Patrick super cub
 

O.K. Made my decision....i'll compromise and set for 1 5/16" hi rates. I'll use hi rate ailerons and lo rate rudder and elev and mix in some rudder. If that don't work i'll build a bigger cub :)

Ric...nice shop! Is that a nieuport 28 hanging up? Proctor?

RE: Dave Patrick super cub
 

Bud
Yes, that is a Nieuport 28, Balsa USA. It had a G 23 in it, I am converting it to a 3 cylinder Saito 170. The fuel proofing on the colors is the big hurdle. I have too much stuff, I'm going to try to sell some at the Central Penn flea market in March. I'm going to be in Laytonsville all next week watching the grandkids, no airplane work for awhile.
Ric

RE: Dave Patrick super cub
 

Ric..

I am just starting to install the OS 160 in my DP cub and would like to know how you built the box the engine is bolted to. is it made from plywood, what size plywood, how big is the diameter, and how deep it is from the firewall to the back of the engine. I know it needs to be as deep as to move the engine out so the back plate on the engine is 1/16 in front of the cowl, but just wanted to know how deep your box is. Also did you use 10-32 bolts to bolt the engine to the box. I appreciate your help. thanks

Robert..

RE: Dave Patrick super cub
 

Robert
I am away from home right now, back Saturday, so I cant give you measurements yet. The total distance was close to what the instructions said was needed, I followed the suggested method to set the final dimensions. What I did was to mount the engine on a aluminum channel, about 1 inch high, and then bolt the channel to wooden spacers cut to size to make up the rest of the distance needed. I made 4 separate blocks, 2 horizontal and two vertical The wooden spacers were cut from a piece of pine board and sealed with epoxy. The wooden parts have thru holes and are bolted to the firewall using the captive nuts that are already on the firewall. The aluminum channel is bolted to the wooden spacers using threaded brass inserts in the wood. The engine is bolted to the channel using locknuts. When I get back I can take some pics to show the detail. I used #10-32 SS hardware for all. The channel I bought at Home Depot. I used this method successfully on many airplanes. It avoids having to use a single large wooden spacer that may split, and every thing is removable from the firewall in case the engine is replaced by some other size
Ric.

RE: Dave Patrick super cub
 

Ric..
Thanks Ric. I will be looking forward to seeing your pictures of the box and measurments.

Robert

RE: Dave Patrick super cub
 

Ric, please post the pictures so that we can all see how to do it.
Thanks - Howard

RE: Dave Patrick super cub
 

Is there anyone who has their cub finished using a futaba radio and if so did you use a Y on the flaps or separate channels? I have the futaba super 8 and can't figure out how to program it to use two channels. I have it set up to operate flaps from a switch as opposed to the knob but that's as far as I got. Also, manual says either mount servos left of center line or right of centerline..does it matter if i'm using a Y? I have my stupid hat on tonight [:o]



Bud

RE: Dave Patrick super cub
 

Bud, I called fuutabaa and guy walked me right thru hit :^)
after I read and read and still could not figure it out

tom e

RE: Dave Patrick super cub
 

Bud,

NOW , I am super! Contributor ??? hun I not do nuttin :^)........te

RE: Dave Patrick super cub
 

Hey Tom,
Guess you have to have so many posts to be a super C ;) never really noticed mine. Yeah...I have Don Edbergs book and am still confused.

RE: Dave Patrick super cub
 

Hi all; I,m just getting back to this thread. I have been puting some interior detail in my DPM super cub, sending pics. I used light balsa, easy to work with and paint. I only added 4 ozs extra weight. I,m eager to see what some of you fellas are doing with the interior of the cub. I,m not sure about the colors. I bo not want to spend money on a documented picture set for this plane but I did get to take pictures of a real super cub at an air show so my interior is pretty good. I wish I had the white cub, the colors would be better.
Bud, I like what you did with the tail brace wires and hinges on your cub, they look great. What did you use?

RE: Dave Patrick super cub
 

Handyandy,
If you're referring to the picture of the cub tail I posted on the previous page that's a real cub. I haven't done my bracing yet. Nice clean interior....will you have access to the fuel tank?


Bud

RE: Dave Patrick super cub
 

Hi Bud;
All the floor boards and the front panel are removable to access the tank and the flight pack. The floor boards are elevated and all the works are underneath. All the panels and the seats are easily accessible through the top hatch. I will make the windshield removable as well. I am looking at your interior for ideas as well.

RE: Dave Patrick super cub
 

Hi handy andy,
Here's some shots of how i'm doing my interior...the receiver will be under the rear seat.

Bud

RE: Dave Patrick super cub
 

Ric.. Still looking forward to those pictures of your engine box and how you built it. Thanks

Robert..