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RCM CESSNA 0-1E/L-19 BIRD DOG Build

Old 08-27-2010, 09:38 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Mako17: How do you like those 5625's in a 30cc plane? Are they enough torque? (I'm thinking about using them in my next project.)
Old 08-28-2010, 09:17 AM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I've been using the 5625's forever, from a 110" Rascal, 26cc Extra 260, and now the Pilot 260, I haven't had a chance to fly the current 260 yet as I've been working in Iraq for a year, but they should handle the task pretty well, on 6V they have 131oz of torque. I do have the more powerful 5645 on the rudder, at 168oz torque, should be plenty, I'll be home for good in 64 days so i'll definatly find out more then.
Old 08-28-2010, 01:42 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Looking at doing a 1/4 scale Pitts next (MAN plans), so probably need torque and speed similar to your Extra.

Stay safe, and let me know how they work out on that one.
Old 08-29-2010, 08:12 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Details of the tail wheel here.

I've been mostly final sanding all week and just got to the covering Saturday morning. However, I'm still adding all the little trim pieces in the areas the big sheets won't go. i.e. Mostly working on the TE of the wing where the flaps attach. Those hardwood hinge posts are making this kinda tedious.

My immediate plan is to get a base solid OD covering on, get a couple flights on it, and then spend a little more time triming it out the covering.

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Old 09-04-2010, 05:21 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Hows the build goin?
Old 09-05-2010, 11:58 AM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I'm away from the building board this weekend, but I finished covering the wing during the week and started spraying some OD green on the areas that won't take Monokote.

I'll post pictures during the week.

Saturday, I went to an RC airshow and saw an RC jet live for the first time. WOW!
Old 09-09-2010, 07:43 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Here some pictures of progress.

I've been working on final sanding, trimming and shaping of the flaps and ailerons, plus getting the scale Robart tire hubs ready to paint.

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Old 09-23-2010, 09:26 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Been a little lazy about posting, but the build continues.

Fuse is mostly covered. I'm done painting for a while. I re-assembled and install all the landing gear. Sealed up the fuel lines.

I'm working on some balsa filler to continue the rear deck into the fin - stab joint.
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Old 09-26-2010, 10:48 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Epoxied on the vertical stab this evening.

Only challenging things left to do are the windshields. Lazerworks included a cardboard template for them though. I just need to figure out exactly how to glue them to the fuselage without screwing up the Monokote - like I have in the past.

SIG kits instruct you to trim the covering around where the windshield meets the airframe. This in combination with Formula 560 Canopy glue seems to make a great joint. However, you end up with bare wood at the joint. In the past, I used Monokote trim pieces to cover up this. However, Monokote trim basically sucks and generally falls off after a bit of flying.

Anyway, the real plane has a bit of OD flashing to hold the windscreen in place. In other words, my best bet would be to glue it in place without exposing the wood and then maybe use a bit of the covering to just cover the raw edge.

Our new Safety Officer recommended using a couple screws. I like this idea, but the screws would be way out of scale, would add unnecessary weight, and would require more windshield overlap than I want to use.

I'm thinking of making pin holes where the plastic meets the Monokote - on the theory that a little glue will penetrate the holes and bond with the wood as well as with the covering.

Anyone have any good advice on this??????


Old 10-09-2010, 04:52 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I'm trying using pin holes to give the canopy glue something to grip on. Seems to work so far.

I have the tail feathers nearly down. (Rudder needs CA on the hinges, and I need to do the dorsal fin.)

It's so close, and yet, I seem to get so little time to finish her up...

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Old 10-16-2010, 10:19 AM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Moving slowly on the windshields, so I started on the wing control surfaces.

As far as I can figure out, the only way I could do the flaps was to cover the bottom, then install the control horn and hinge points, then trim the bits sticking through, sand it down even and cover the top surface.

I had no clue how to install the control horn on such a thick, hollow, built up piece. I ended up cutting a small square hole, installing a small chunk of wood, and bolting the horn through the chunk. Afterward, I glued the small chunk back to cover the hole thing over.

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Old 10-26-2010, 09:01 PM
  #62  
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Here's the after pict - before covering. I've trimmed off the hinges and screws where they stick through, and added back a little wood filler.

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Old 10-26-2010, 09:06 PM
  #63  
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

And, here they are finally DONE!

[youtube]http://www.youtube.com/watch?v=LrqbuAhfj7k[/youtube]
Old 11-06-2010, 10:26 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I've decided to do the maiden before trimming out all the covering. Just in case something goes wrong, it'll be far easier to fix before all the external markings are on it.

I also want to avoid the landing gear fairings until I've had time to get used to how it lands. IMHO, the gear will be a bit more forgiving without plywood glued to it.

Weather looks good for tomorrow! If so, it'll fly with no markings, no landing gear fairings, and no wing struts.
Old 11-07-2010, 08:10 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Maiden went relatively smoothly. Well, the landing was smooth anyway. The plane was climbing like mad until I got about 10 degrees down trim onto the elevator and throttled back to under a quarter.

I'm guessing it needs some nose weight, but I heard suggestions for more downthrust and possibly adjusting the wing incidence down a little as well. Anyway, I'll change one thing at a time and see how it goes.
Old 11-07-2010, 08:18 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Congrats on the sucessful maiden. Any flight that the plane survives is a good one.
I have hear where there were some incidence issues with the Bird Dog. I would try adding weight to the nose as well. Hard to deal with a tail heavy bird.
Anthony
Old 11-09-2010, 01:04 AM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Now you tell me!? Yeah, I'm not sure it's all that tail heavy. It wasn't hard to fly once I had a ton of down trim cranked in, but I still think a little nose weight will help.

Here's a picture a fellow club member took before the maiden flight:

I left off everything optional until I get it roughly trimmed out.
Old 11-09-2010, 09:14 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

[youtube]http://www.youtube.com/watch?v=0ntXtirpGWc&feature=player_embedded[/youtube]
Old 11-13-2010, 08:01 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I put about 3/16 worth of shim between the back of the wing and the fuselage where it bolts on and it seemed to settle in very nicely. Still have a few issues to iron out though, but it looks very promising at this point.
Old 12-13-2010, 02:56 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I added an extra washer to the top of the engine mount for a tad more down thrust, and it now seems to fly very well.

A club member offereed to make some vinyl decals for it, and I definitely took him up on it.

So, at this point, I feel confident moving forward and finishing off the trim bits on the plane.

1. Mount the cowling. (It's already cut and painted, though I may paint on it a bit more.)
2. Make the LG fairings
3. Make the Wing struts. (The attachment points are good to go.)
4. Stickers!
5. Also, I'm gonna go ahead and install a RAM glow driver as well.
Old 04-30-2011, 05:05 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Been a while since I posted here, but I finally finished off all the trim and brought it out to the club Warbird Day. (For some reason, after getting her flying right, she became a back burner project.) Here she is in all her glory:

I added a glow battery in front of the firewall, and that seemed to complete her. She flys real mellow and very stable.
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Old 04-30-2011, 05:06 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

And...
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Old 05-02-2011, 07:01 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

One more pic of it in flight.

Old 10-05-2011, 05:10 AM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

Hello,

I am very interested in your L-19 project. I would like to build the same kit. The pictures are superb! I will use those pictures to guide me. I would like to know where did you find the L-19 cowl? Also, what size engine are you using?
Great pictures.....I appreciate your posting!

Regards,
Fred

Old 10-05-2011, 06:06 PM
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Default RE: RCM CESSNA 0-1E/L-19 BIRD DOG Build

I am very interested in your L-19 project. I would like to build the same kit. The pictures are superb! I will use those pictures to guide me. I would like to know where did you find the L-19 cowl? Also, what size engine are you using?
Great pictures.....I appreciate your posting!
Cowl was from http://www.fiberglassspecialtiesinc.com/

If you build the kit, make sure you make some kind of jig to hold the fuselage straight while you build it.

Though, honestly, if I had to do it again, I think I would go with the Vailly kit - from what little I know of it.

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