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"PD1 Pocketwalker" for Scratchbuild contest #2

Old 09-06-2008, 01:14 AM
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smokejohnson
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Default "PD1 Pocketwalker" for Scratchbuild contest #2

This will be the build log for my entry in the Scratchbuilder Contest #2. I am going to be using the plans that Paul emailed me for his "PD1 Pocket Rocket" as a starting point. I am going to try and mold it into a Spacewalker, hence the name "PD1 Pocketwalker". I have only built one other balsa scratchbuild from a set of RCM plans and I built it per the plans so this will be my first try at something like this. We'll see how it goes.

I'm still in the planning stage right now. Making a few templates, a couple of drawings, and a whole lot of head scratching. I have built several kits so I will be using the construction methods that I am comfortable with and used to. I will be doing slab sides all the way to the tail instead of stick building the aft section. That's the template you see in photo #2. I started cutting out the ribs this evening out of some 1/16th balsa that I had on hand. I need to get down to the LHS and pick up some balsa this weekend before I can go much further.

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Last edited by smokejohnson; 09-06-2008 at 03:38 AM. Reason: title change
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Old 09-06-2008, 01:43 AM
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Grasshopper
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Subscribed. I love the Space Walker.
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Old 09-06-2008, 02:11 AM
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Rabbitcreekok
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I'm like you Tom, I really like the Spacewalker. I hope to build one someday.
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Old 09-06-2008, 01:21 PM
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Gota watch this, looks like the best one yet.

Paul
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Old 09-06-2008, 08:25 PM
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Rabbitcreekok
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Originally Posted by pd1 View Post
Gota watch this, looks like the best one yet.

Paul
Gee Paul, I wonder why you would say that.
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Old 09-07-2008, 01:49 AM
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Larry3215
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Originally Posted by pd1 View Post
Gota watch this, looks like the best one yet.

Paul
LOL
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Old 09-07-2008, 03:40 AM
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I've got the ribs cut out and will start assembling the wing tomorrow. The 4 smaller ribs on the left will be the center ribs under sheathing. I lined the ribs up on a couple of small sticks and then pinned them together for sanding. Of course I will sand the 4 smaller ribs pinned together by themselves. I like the way they turned out, should work just fine.
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Old 09-07-2008, 04:04 AM
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GreenAce92
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Looking good smoke!
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Old 09-07-2008, 04:25 AM
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Larry3215
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How big is this one going to be?
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Old 09-07-2008, 05:19 AM
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If she turns out anything like the pic, she'll be a beauty! Some tough competition here. Happy building.

Rick
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Old 09-07-2008, 05:39 PM
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Originally Posted by GreenAce92 View Post
Looking good smoke!
Thanks Jake

Originally Posted by Larry3215 View Post
How big is this one going to be?
That's a good question Larry. As it is now it would end up with a wingspan of about 36". As I am looking at the panel I built this morning I am realizing that about 4" of that 36" would be wing tips. Only giving me 32" of wing, take away another 2" for the fuze and I'm down to less than 30" of wing. Paul had suggested that I add some length to the wing so I think I am going to consider this a trial run and make a bigger wing. If I add another bay to each end that will add about 6" and I think I will feel better with that.

Long way of saying I'm shooting for a 42" wing and less than 15 ounces AUW.

Originally Posted by RickAvery View Post
If she turns out anything like the pic, she'll be a beauty! Some tough competition here. Happy building.

Rick
If I can even get close to the one in the pic it will be a miracle...but I'm going to try .
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Old 09-07-2008, 05:54 PM
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GreenAce92
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Ahh look at the balsa man doing his work, pretty good man. Hey BL will fly anything lol even socks!
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Old 09-07-2008, 09:44 PM
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smokejohnson
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Have you ever tried balsa GA? If not you should give it a shot, it's very satisfying and not near as hard as it looks. You build one just like you would eat an elephant...one bite at a time .
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Old 09-07-2008, 10:17 PM
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GreenAce92
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Lol that was a pretty good comparison. Ive tried it once when i made a balsa rubber band powered plane once, just one with a flat wing. I like how you can cut out ribs for the wings, and also how you make the body structure, then sheet it. THats pretty cool to me. Only thing is does it get expensive? I would like to try it like small scale first, maybe a simple 20in wingspan plane. I'd have to plan out the plane first though, cant build like hwo i do with foam. Is balsa your main bulding material theN?
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Old 09-07-2008, 11:41 PM
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Nahhh, it doesn't cost anymore than building foamies. You need a few more tools like a heat gun and covering iron but they are a one time cost. And I don't discriminate foam or balsa, doesn't matter to me. I've built more foamies than balsa but that's just because they're so fast to build.
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Old 09-08-2008, 12:35 AM
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GreenAce92
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Alright well one of these day's ill give it a shot, actually i may buy a Balsa Pipercub kit, or a Supercub kit and work with that. About the monokote stuff, does it stick to itself?
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Old 09-08-2008, 12:51 AM
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Yeh it sticks to itself. You get little air bubbles in between them that you can pop with a T-pin but I usually just pop the bigger ones and leave the little ones.

There's air bubbles on this plane but you have to be up close to see them.
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Old 09-08-2008, 12:56 AM
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wow that looks nice, is that like a Big Stick or someting like that?
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Old 09-08-2008, 12:59 AM
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Looking good James.
If you want to salvage that wing panel, you can make a center section add in.
The center section will be flat, and the two outer wing panels will have the dihedral.

You don't really need the webbing between the spars on this one.
It's very light and 1/4 x 1/4 spars are what I use on way bigger planes.

Don't add too much weight. Sometimes making it stronger only adds weight, increasing the damage in an impact.

Paul
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Old 09-08-2008, 01:05 AM
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I think I saw where a guy used windex to apply the second layer, pressed out the bubbles, then sealed it with the iron.
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Old 09-08-2008, 01:23 AM
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Originally Posted by GreenAce92 View Post
wow that looks nice, is that like a Big Stick or someting like that?
It's called a 1MORStick by JTech Laser. Here's a link to the thread.
http://www.wattflyer.com/forums/showthread.php?t=36599

Originally Posted by pd1 View Post
Looking good James.
If you want to salvage that wing panel, you can make a center section add in.
The center section will be flat, and the two outer wing panels will have the dihedral.

You don't really need the webbing between the spars on this one.
It's very light and 1/4 x 1/4 spars are what I use on way bigger planes.

Don't add too much weight. Sometimes making it stronger only adds weight, increasing the damage in an impact.

Paul
I didn't even think of that and I already gave that panel to my daughter. She colored it up with a marker and then destroyed it .

Originally Posted by FlyingMonkey View Post
I think I saw where a guy used windex to apply the second layer, pressed out the bubbles, then sealed it with the iron.
I'll have to try that. I gave Trim Solvent a try once but it didn't work out too well for me.
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Old 09-08-2008, 01:57 AM
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wrong vid...
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Old 09-08-2008, 02:32 PM
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windy city
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Smoke,
Great choices! The Space Walker has the classic looks.
And by starting with PD1's Rocket plans you will end up with a great flying plane.
Don't be afraid of the stick built tail end. You would be very surprised by the strength of the airframe.

best of luck,
windy city

Originally Posted by smokejohnson View Post
You build one just like you would eat an elephant...one bite at a time .
LMAO Classic line Smoke!
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Old 09-10-2008, 01:29 AM
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For those watching this thread that may not know my wife gave birth to a healthy happy baby boy Monday . Progress on the Pocketwalker may be slow for a few days. Tomorrow he will be circumcised and we should be able to come home. So until then there won't be much progress.

I'm off to the hospital....
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Old 09-10-2008, 01:54 AM
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GreenAce92
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poor guy he's losin a part of him lol
good luck with your new boy man (*sniff*) happy tears lol
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