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Nijhuis 46" Spitfire

Have you built the 2006 special?

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Peter 'Ivanna Crashalot' Savage02/10/2009 14:38:55
1557 forum posts
58 photos
Blimey Batch099, how many bloomin' things are you building?
Steve Hargreaves - Moderator02/10/2009 15:16:42
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Great build Batch.......I used to have a Cambrian Fun Fighter Spitfire around about 1979/80...it looked great in the air & flew well on an OS25......this version with the 32 up front should go really well!!!
 
One point about cyano adhesive is that it doesn't fill gaps like PVA does...if you can cut out really accurately (or better have a CNC kit) then it is fantastic but I know that the parts I cut out don't quite fit as well as they might sometimes  (they're not miles out but sometimes 0.5mm or so) & cyano doesn't bond very well to thin air!!! Using PVA allows for a bit of...ah...mis-alignment shall we say!!!
 
A new glue I'm trying is a PU glue.....like gorilla glue but much cheaper from your average builders merchant......it really does stick but foams up slightly so can move parts around if you don't clamp them together......I'm still a little undecided about this stuff for everything but for most joints it is fantastic.....particularly anything foam!!!
batcho9902/10/2009 21:28:02
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347 forum posts
16 photos
No pics this evening. I did manage to get the L.E fitted to the wings but that about all progress today. Plumbing problems at home stopped play! It'll be either good weather for flying or bad weather for building this weekend cant wait.
Tommy Soderstrom03/10/2009 07:16:47
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56 forum posts
119 photos
I just cut these out last week:

Nice build batc! I'm thinking of using your thread as a manual for my own build.
My Spitfire will be 80% of the original 46" Nijhuis plan and, of course, electric powered.
 
/Tommy
batcho9903/10/2009 10:26:15
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347 forum posts
16 photos
Brilliant Tommy. Nice ribs. It seems a few people have or are about to start this build.
A bit of advice for you, dont forget to cut out the holes in the ribs for the servo wires  its will be difficult after you glue them to the spars  I hope you guys learn from my mistakes. A bit too winy here today, maybe i'll get some building time when the baby gets her nap!
Andy Gates03/10/2009 11:24:34
636 forum posts
19 photos
I have built this machine and used an electric set up on her.
 
She flies beautifully.
 
I did a full build thread on another forum which can be found here http://www.rchobbyhub.com/index.php?name=PNphpBB2&file=viewtopic&t=4060
 
I can't remember if I had the same issue with the former as you had because with models I build from plans, I do expect to find errors and so I cut parts as I go and modify them as required to make them fit.
 
This is not a dig at anyone or a particular publication just one of those things that seems to happen.
batcho9909/10/2009 17:04:59
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347 forum posts
16 photos
Nice build Andy. Hope its still flying.
 
Busy week in work, but the weekend finally came, well friday anyway.  I've had an hour or so free so I got on with the build. I've covered the top wing skins with 1.5mm balsa sheeting and cut off the excess. I haven't sanded the edges down yet so they are still rough.
 

 
I need a trip to the LMS to choose some nice aileron servos so the wings are on hold for now, mind you I could build the ailerons!
I fixed the problem with the engine mount (fitted screws to hold the engine in instead of nuts and bolts) so I started on the cowl.
First glue in the rough 12mm and 9mm balsa.

 
 

 
Then the sanding begins! Good job i've got a good dust mask, I always do heavy sanding in the yard instead of the hangar, saves alot of mess, and lung damage!
 

 
I couldn't resist having a little look at whats coming together
 
 

 
Plenty more sanding to do, I dont want to rush it because I could ruin the final shape.
 
Iain.
Andy Gates09/10/2009 17:46:07
636 forum posts
19 photos
Looks like you are really going well on her.
I normally do much the same with the rough sanding.
I take it outside and take the rough off with a drill mounted on a bench and a sanding disc fitted.
I do have to take it easy though.
 
I have not flown mine in a while but she is still in much the same condition as the final pictures.
I have not found any really nasty habits with her although I have managed to wear out the tail stick I fitted, and I have managed to get her to tip stall but she was almost falling out of the sky at that speed anyway.
 
Keep going, I think you will find her well worth the effort.
Peter 'Ivanna Crashalot' Savage09/10/2009 17:47:16
1557 forum posts
58 photos
Looking good!
batcho9909/10/2009 17:50:36
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347 forum posts
16 photos
I have found i've had to leave quite a big area for the engine. The plan recommends a .25 but i'm fitting a .32 with a rear needle. I was thinking it would be mint with a little four stroke mounted inverted Maybe next time
Simon N09/10/2009 21:34:19
176 forum posts
117 photos
Nice job there Iain mate,  
 
Eh ..... you and your four bangers ..... 
 
 
batcho9912/10/2009 13:19:56
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347 forum posts
16 photos
Arghh, night shift this week which means little building time. I did however buy a couple of lovely little digi servos, savox 2.2kg. I'll put digis on all control surfaces and standard on the throttle. I've been looking into the paint i'll need for the finish, standard mk9 RAF colours, any ideas on paint/where from? I dont have an airbrush, was thinking aerosol for now??
Peter 'Ivanna Crashalot' Savage12/10/2009 18:13:23
1557 forum posts
58 photos
Going to college 2 1/2 days is great, and i can walk to the LHS!
batcho9921/10/2009 18:33:43
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347 forum posts
16 photos
Hi chaps. An update on the build. Some more work been done on the wings, mainly the ailerons and aileron servo mounts. I decided to build a removeable panel into the bottom skin and mount the servos to this. I have a large petrol a/c with the same design and it works really well so I just scaled the whole thing down.

I have used ply for the panel of the same thickness as the bottom skin so hopefully it will blend in well once covered and painted.

The servo will be mounted as so. I'll use the longer servo arm that comes with the servos and cut down one end so it doesn't contact the top skin

The ailerons are built up, I have reinforced the hinge areas to give it strength, also strengthened the control horn fixing point, I dont think it will add much weight. I also beefed up the foward sections of the rear spar where the hinges will go.

Once the ailerons were built I cut out the hinges, I am using 3 CA hinges per aileron. Then they were sanded down at the L.E. to provide max 1" throw up and down! I dont think i'll fly it with that much throw but its nice to have the movement mechanically.

Again, I couldn't help having a quick look at what it might look like down the line.

The bottom wing sections

It has a nice amount of dihedral when turned over the other way. Well worth making the dihedral guides for Rib1 at the begining of the build.
I wonder what a clipped wing version would fly like?
 
Last pic for now.

Can you guess what i'm intending to put here when finished? Remember it's based on a Mk9
 
 
 
 

 
 

Edited By batcho99 on 21/10/2009 18:34:29

Dusty21/10/2009 18:54:18
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1632 forum posts
560 photos
mmmm some guns..........
Simon N21/10/2009 21:38:35
176 forum posts
117 photos
dagga ....  dagga .... dagga  .....     .... 
 
oops  sorry about that  !!         watched Battle of Britain too many times  !!   
 
 
Very nice building  Iain mate.
 
That wing looks the business, keep up the good work. 
 
Little Nellies coming along fine too .... 
 
Cheers,
 
Simon. 
Peter 'Ivanna Crashalot' Savage21/10/2009 21:43:46
1557 forum posts
58 photos
What do you think about installing these in the wing, with a bit of reinforcment
batcho9922/10/2009 08:18:58
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347 forum posts
16 photos
Yes, Cannons! I think a little scale detail will look nice when its in the air, I'm not gonna go mad with scale bits though, just stuff that looks good in the air. I think an aerial mast will look good too, and altering the elevator to look like the mk9 instead of a boring straight L.E. one.
 
Glad to hear the cub is coming along Simon, I like to follow your build, it spurs me on to work on mine.
 
Peter, it did mention the possibility of retracts in the plan write-up, but I dont want the complication and the fact in will probably nose over on every landing if thegrass isn't like a bowling green! Maybe next time. I'm having so much fn with this build I think a TN kit might be on the cards for xmas I was going to start the Typhoon, but i'll strugle getting the 4 stroke in. The Hurricane tho, thats one i've always wanted. (peter, i need to finish my gyro too!!)
Peter 'Ivanna Crashalot' Savage22/10/2009 16:20:51
1557 forum posts
58 photos
I'm already thinking of projects i can do while at university!
 
I have loved building the lysander so far!
Andy Gates22/10/2009 18:16:11
636 forum posts
19 photos
Batch
 
Don't worry about this plane nosing over on the ground.
 
Mine has never even got close to doing so, even when starting the take off run in a thistle bed.

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