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Wrench66's entry in Scratchbuild contest #2 "Spitfire MK24 - Rat Patrol"

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Wrench66's entry in Scratchbuild contest #2 "Spitfire MK24 - Rat Patrol"

Old 09-24-2008, 05:41 PM
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Default Wrench66's entry in Scratchbuild contest #2 "Spitfire MK24 - Rat Patrol"

OK, starting with one of my favorite planes and going with good 'ol blue foam. I've always like the North African theater colors so she'll be dressed as a Rommel chaser The pics show an earlier version in desert colors, mine will be the bubble canopy MK24 in same livery.

Rat Patrol was a cool show.....remember?

--Ray
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Old 09-25-2008, 06:55 AM
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OK, as I contemplated which way to go with this little English doll, I came to a decision that I wanted a profile type warbird since the build would be fast and the fun factor would be quite high A lot like a 3D type build, but not ya know? Clear as mud huh??! hehe
____Pburt1975......WHOA bud, yer project there is a ways beyond my scope, that one deserves finishing!! I have built full fuse planes, but this one is forever flat
____Chellie......thank you, I value your opinion more than you could know (but I still won't paint it pink!)

some shots of the progress.

---Ray

Here goes
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Old 09-25-2008, 04:39 PM
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Originally Posted by pburt1975 View Post
You make it look to easy man . That'll be a nice looking plane when its done, and it dont HAVE to be all pink , just some accents of it, lol
Hehehe....thanks
I'm not sure if I can be trusted to man the airbrush with a pink charge in it......don't think I could do it!

More pics now of the cutting and trial fitting of the essentials.
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Old 09-25-2008, 05:20 PM
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Default More bits

Gathering the puzzle pieces:
1) Emaxx 2822 1200Kv aka: The red motor, Hobby City $6 wonder capable of near 175w output....OK! Attached is an APC 8x4 prop and Global Hobbies gold spinner/adapter for a little dress up. The ESC is one of the Super Simple 20a type from HC as well.....well tried and tested throughout our club...recommended.

2) Berg 4L RX and 3 9gr Hobby City servos. I'll be using one servo in a "push-pull" configuration just in front of the canopy's leading edge.

3) Again, we have some Hobby City products in the Zippy 3s 500mah battery. At less than 2oz, it will be the lightest batt used.....a Zippy 1000mah 3s could be flown as well but at a 3/4oz weight penalty. We'll see how it goes once it's airborne .

----Ray
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Old 09-26-2008, 01:05 AM
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Originally Posted by CHELLIE View Post
Before you cut the wings, it looks like you need one female and one male splice, rather than 2 female splices just my 2 cents worth, Chellie
Not sure I follow there, Chellie......you meaning the fact that the blue core has two different sides? The plastic side and the uncovered side?? I DID catch that AFTER cutting it out sooooo......looks like I'll save that side for the next project! Woo Hoo more fun

Yes, Jim the new system has me smiling whenever I tack the pictures onto my posts......so cool!
Not sure where else to post it, but I'll poke around and see if'n I can't answer my own question.

More progress now.
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Last edited by Wrench66; 09-26-2008 at 01:11 AM. Reason: Thinking of building a Zero to add to this little stable
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Old 09-26-2008, 01:47 AM
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Originally Posted by GreenAce92 View Post
Nice job Ray! You really liking the profiles arent ya?
hehe, yeah I guess it would seem that way huh?! I do like how easy they are to build (since I am on a limited amount these days) compared to full fuse models. Real easy to repair too when a "gravity over lift" problem arrises......I hate when that happens

I have thought about doing a full fuse model from thicker blue foam, maybe soon. Plus those lite weight versions (10oz all up) fly so good and fast.

---Ray
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Old 09-26-2008, 04:00 AM
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OH ok, yeah I see what those markings are......it's just part of the locking assembly between the vertical part of the fuse, the horizontal and the wing itself. I got the idea in part from another flat foamy but have modified quite a bit from the original. It sure makes a difference in stiffness and overall strength, fits together like a type of puzzle. I can actually assemble the entire fuse and wing saddle without any glue to check fit everything....sorta mock up work.

Thanks for watching out for me though!! You're da best.

---Ray
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Old 09-26-2008, 04:15 AM
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Wing assembly....aileron attachment and trial fitting of fuse parts in the backround there.

---Ray
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Old 09-26-2008, 05:48 AM
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Originally Posted by SaucerGuy View Post
That's looking like a very good build Wrench, you picked a good design to model after. Also, those aielerons look like they will give you some insane response.
Thanks SG, I have one other in the regular rotation that was made using a similar set of ideas....my SNJ / AT-6 flattie. It flies nearly every weekend and is very enjoyable.....the new Spit will be quite welcome by it (the FW190 maybe not so much ) as it is carrying the Allied flag alone for now.
The ailerons are a bit larger than scale for the simple reason of I like lots of control......sometimes to the point of overcontrol as I don't use any expo or rate change! hehee, the Navy plane (at-6) uses the same type control surface size and it is very docile when cruising around BUT will turn an axial roll like it's on fire if pushed.....Immelman turns and split s's are just as fun too!

Hey Chellie? The pic below was drawn 21yrs (of course i did) ago but I think you'll get my drift.....this little Spit will be quick! hehehe see ya.

----Ray
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Old 09-26-2008, 06:09 AM
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Thanks Jim, I appreciate the heads-up

---Ray
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Old 09-26-2008, 10:39 PM
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More progress to post today.....nearly complete! yay
All airframe assemblies are now one, the control servos are mounted and linkage made up and the motor assy is bolted on. Checking CG it looks as though she is a mite nose heavy without a battery installed. A last minute decision did substitute the red Emaxx for a 120w Towerpro motor at a weight penalty of 22gr! Yeah I guess your nose heavy there Lassie!!
I may revert to the original plan of using a small Turnigy 2209/28--130w at the same weight as the red Emaxx 45gr.
For now, here we are.
OH and I will be shaping the wing tips and elevator tips to a more eliptical shape to better represent Englands best .......enjoy the pics!

---Ray
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Old 09-27-2008, 12:25 AM
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Default Finished! :)

OK, hey now we're talkin! She's drying in the sun (HOT today) and will likely be ready to maiden later this eve. Will attempt some video over the weekend to post, more pics I reckon too.

Now.....let's go find some FW's or ME's to chase around!

Sooooo...when does this contest end? oh, ok hehehee lol

---Ray
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Old 09-27-2008, 12:32 AM
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Maiden went great! Check the pic.

LOL LOL

:p >
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Old 09-27-2008, 04:12 AM
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Default Success :)

Hi all, the maiden went very well! The plane flys xlnt and has good power.....had blast off like power with an 8x3.8 prop, unlimited vertical even half way through the battery! BUT runtime was a bit low @ 5min, so I re-propped to a 7x5 and gained more top speed and still has a ton of vertical from take off even and flight time increased to over 7min so I'm very happy with it.
As you would've guessed by the size of the control surfaces, the response to input is immediate and very satisfying The fact that I was worried about the sky blue belly was for nothing as the plane never really spent any time showing me it's underside.......it was too busy doing axial rolls, split S's, Cuban 8's and Immelman's! Seriously it wasn't a problem so I'm glad for that. I do have another power system to try out, the Turnigy 1130kv with an 8x3.8 or 8x4 prop so maybe I'll run that setup in the morning (Chellie......you flying out here t'morrow? lemme know) along with a couple different batterys (800 3s and 1000 3s).
During the first flights, I landed it a few times and repositioned the battery to play with CG a bit. I ended up with the normal CG just aft of the 1/3 chord mark and with that setting the plane flys very easily and will handle inverted flight with almost no elevator input.......right on the money. Landing is incredibly easy as well since it just floats in dead stick if ya like or leave a little power on and land it scale like.....I like it!
All in all, I ran it through 4 500mah 3s batteries and would've liked to keep flying but it was getting dark so I quit.

Hope you like the build and the finished product, I enjoyed it completely as well
BTW....I DID video the maiden with a little cam taped to my radio......kinda cruddy and the plane isn't in all of it...LOL....but I am loading it into Vimeo and will post a link in a few min's.

best of luck to everyone,
---Ray
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Old 09-27-2008, 04:31 PM
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Originally Posted by CHELLIE View Post
Thats great to hear Ray, Kudos on the New plane and the Maiden, Sooo Where are you going to be flying at tomorrow ?
Hi Chellie,
Looks like we'll be at my place today, flying at the elementary school across the street from my house.
PM me and I'll get you my ph# if you'd like to join us

C-ya,
--Ray
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Old 09-29-2008, 06:47 AM
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Originally Posted by pburt1975 View Post
You Zipped right through that one didnt ya? Nice job man!
Yeah, those profile planes don't take much......besides I hadda finish it fairly quick as the "honey-Do's " are waiting! lol lol on to #2 now.

UPDATE-----the past two days have seen me and MiniSteve put almost 8 batteries through their paces on this little plane! It's a kick to fly and has an uncany ability to handle most all 3D manuevers Steve could ask of it! I did not count on it being any type of 3D machine, though the aileron size may suggest it, as the tail and rudder surfaces are quite scale and not to the current "barn door" sizes most are using. Ever seen a MK24 Spit' hold a knife edge 6ft off the ground? How about a slow knife edge to hover manuever?? Ya gotta see the vid........coming soon.
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Old 09-30-2008, 02:19 PM
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OK, finally was able to put this together......please enjoy, it was a lot of fun making the video


---Ray
http://www.youtube.com/watch?v=mJ9VHdEwuHg

Last edited by Wrench66; 01-03-2009 at 01:24 AM. Reason: trying yootoob video now
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