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Author Topic: DR-90 Nemesis  (Read 826 times)
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bgrove
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« on: August 23, 2018, 05:35:02 PM »

I've cleaned my work bench and started a new peanut scale build.  The DR-90 Nemesis racer.  Yes.  I'm building another race plane  Smiley  

My careful selection process for my next build consisted of:
1. Peanut scale
2. What did I have plans for that were ready to go

So I have dove in and I am working on the wings and tail surfaces.  I'm thinking I will break down and buy some small airbrush gear for finishing.  If I decide to go with white like the real plane, I don't want to 'chalk' my tissue.  That is slow, messy and doesn't really give you a solid white.  I'll be thinking about it during the build.

Here are a couple of shots of progress so far.

Brad
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MKelly
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« Reply #1 on: August 23, 2018, 07:28:35 PM »

Another nice one, Brad.  Look forward to seeing it come together.  When are you going to do a Pond Racer?

Mike
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OZPAF
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« Reply #2 on: August 23, 2018, 07:42:41 PM »

I agree with Mike. The Nemesis is too easy after the Pushy Cat Smiley

You will have a display cabinet full of these before long.

John
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bgrove
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« Reply #3 on: August 23, 2018, 08:00:10 PM »

So yes.  The Pond Racer is on my list..... but it's like building three fuselages!!  Ha.  Sometimes you need to build something clean and easy.  A building 'sorbet'.

However, this Nemesis is not easy.  Look at the curves and needless to say the cheek cowls!!  I have not yet been really happy with my cheek cowl work.  They look OK from about 4 ft. away, but I really want to figure out how to craft a beautifully shaped and perfectly fitted cowl around multiple curves etc.  Look at the Nemesis cowls - they are crazy.  Tons of swooping, compound curves that have to meet the same - and match side to side.  Wish me luck.

I do have to say, after my last plane (Pushy Cat) with a 24 inch span, this is tiny!!
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FLYACE1946
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« Reply #4 on: August 24, 2018, 12:26:14 PM »

Brad check out the Wild Turkey and add it to the list. A real different race plane.
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bgrove
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« Reply #5 on: August 24, 2018, 12:33:00 PM »

Thanks for the great lead on the Wild Turkey!!  Awesome plane.  I've saved all the photos/info I found on my first search pass and it's now on my build list  Smiley
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OZPAF
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« Reply #6 on: August 24, 2018, 08:54:01 PM »

Brad how about doing a plug for the cowls in modelling clay. This could be used to produce a solid plug in plaster for perhaps vac forming or for forming sections for carving?

John
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bgrove
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« Reply #7 on: August 28, 2018, 12:22:03 PM »

Very interesting idea John.  I'm also interested in locating 'blue foam' that I've seen people use that is easy to carve.  I have not found a good, easy to shape foam yet.

I did managed to sneak in a little build time last evening.  I got the inner fuselage box framed out and I have my top and bottom formers ready to go.  I even noticed that I have to notch the bottom of the top formers to allow for motor clearance - prior to installing them!!  Smiley  This proves that I can learn from my past mistakes  Grin   
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bgrove
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« Reply #8 on: September 04, 2018, 12:51:57 PM »

I've decided to build the canopy and turtle deck from a solid piece of light balsa.  I'll vacuum form the canopy and probably tint it a bit darker.

I'm building out the fuselage, trying to make it straight, smooth and round without breaking too many stringers along the way  Grin 
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bgrove
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« Reply #9 on: September 10, 2018, 01:27:12 PM »

Wheel pants, landing gear and stringers!!!  Oh my.  Here are some in progress shots.  I'm not going to be able to put off the cheek cowls much longer.
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OZPAF
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« Reply #10 on: September 10, 2018, 07:12:25 PM »

Lots of stringers Brad - must be very fiddly! I'm curious about the horizontal plate with binding, in front of the landing gear block. Is that an extension of the landing gear?

Happy building.
John
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bgrove
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« Reply #11 on: September 12, 2018, 12:30:36 PM »

John, that piece of wood is a brace.  No bindings at all, it's just a bar code that was stamped on the wood  Smiley  I probably should have selected a clean piece of wood.  I have braces front and back of the landing gear to the closest former, otherwise the gear only mounts to a 1/16 stringer on either side.

I'll post more photos soon.  Super busy at work.  It's like everyone is taking "crazy pills".

Brad
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dosco
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« Reply #12 on: September 15, 2018, 06:37:32 AM »

Is the Anequim racer next?

Cheesy

-Dave
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bgrove
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« Reply #13 on: September 15, 2018, 12:39:50 PM »

 Smiley  It's on my list and I have been collecting reference photos.

My next race plane will most likely be the "Hot Stuff" racer formerly known as "September Fate".  I contacted the actual pilot of the real plane who sent me 3-view files  Smiley
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bgrove
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« Reply #14 on: September 17, 2018, 12:08:51 PM »

Just a few shots of my recent "work".  Meaning fixing stringers I break  Angry   I did get the wheels pants all shaped up.

Quiz: does any recognize what the RED metal box is?
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flydean1
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« Reply #15 on: September 17, 2018, 03:23:06 PM »

Quiz: does any recognize what the RED metal box is?

Erector Set??
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bgrove
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« Reply #16 on: September 17, 2018, 05:19:36 PM »

You got it!!  That's my Dad's old Erector Set.

I made the cheek cowls this weekend and carved them from balsa.  I post more photos later, but I did my best job ever of slowly carving and sanding them to a very close fit.  They started out at 13 grams total and are now 2 grams total and I still have a bit more to hollow out.
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bgrove
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« Reply #17 on: September 21, 2018, 12:31:30 PM »

Here are the 'almost' finished cheek cowls and chin scoop.  I might carve a second chin scoop - this first one got a little thin after reviewing photos of the real plane.
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DavidJP
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« Reply #18 on: September 21, 2018, 05:06:34 PM »

To me that looks pretty complex but a jolly nice build.  Having a hang up about producing heavy models, notwithstanding attempts to achieve the contrary, don't publish the weight please.
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OZPAF
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« Reply #19 on: Today at 05:55:14 AM »

Those cowls fit well Brad. Lots of sanding/fitting work there.

John
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