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"Little Gem" racer (Read 212 times)
Reply #9 - Yesterday at 8:07am

New Builder   Offline
Full Member
Amherstburg, Ontario, Canada

Posts: 194
***
 
Quote:
Am I seeing that correctly? or are there more curves to it?

I think I would try some paper templates. When I thought my Ryan would be a wrap around it became a try and fit proposition before I got even close, all that before the accident.
 
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Reply #8 - Oct 17th, 2017 at 12:43pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 321
****
 
Richard - you should give a peanut a try.  They are quite enjoyable to build and yes, take up much less space  Smiley

Work on the plane has been slow but steady.

Once I cut the front round former and mounted it, I realized I needed to add filler all around to taper from the circle to the fuselage.  That took some time, but turned out OK.

I also got the wing to fuselage curve installed and it will work will.  Very simple.  I also have cut a big stack of wood that will ultimately become the cheek cowls and I've laminated a stack of wood for the spinner.

It doesn't look like I need to vacuum form a canopy for this plane - instead just use a flat sheet curved around.  Am I seeing that correctly? or are there more curves to it?
 

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It's much easier to ride the horse in the direction its going.
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Reply #7 - Oct 17th, 2017 at 8:16am

staubkorb   Offline
Senior Member
Stick & Tissue
Germany

Posts: 1214
****
 
Peanut models are generally NOT so "easy" to flight train as larger models!  They rely on light weight and very careful/accurate building and trimming - it's that Reynolds number thing.  Peanuts with a larger wing area benefit since they're restricted in span.  Once one has the knack, they do fly as nicely as larger ones Wink.

The main advantage is the relatively smaller footprint allowing easier storage...

...and they are just NEAT!
 

WWWoFF
Wonderful Wacky World of Free Flight
(with a bit of rc thrown in for giggles)

Comparing Spammers to a pile of organic waste is an insult to the organic waste!
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Reply #6 - Oct 16th, 2017 at 4:44pm

LASTWOODSMAN   Offline
Senior Member
REAL PLANES HAD ROUND
ENGINES AND TWO WINGS
Windsor, Ontario, Canada

Posts: 633
****
 
Hi Brad - that li'l Gem looks really good  Smiley  - I may have to convert to peanut scale models myself - no more room for big models - will the Gem Racer be Free Flight Rubber Powered ?  They must fly just as well as the big models - right? - and take less time to build ...  Wink
LWM
Richard
 

OH, I HAVE SLIPPED THE SURLY BONDS OF EARTH ... UP, UP THE LONG DELIRIOUS BURNING BLUE ... SUNWARD I'VE CLIMBED AND JOINED THE TUMBLING MIRTH OF SUN-SPLIT CLOUDS ...
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Reply #5 - Oct 10th, 2017 at 1:54pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 321
****
 
Old school landing gear attachment with thread  Smiley  I'm pleased with the mounting.  Also a couple of shots showing how much I enlarged the rudder and elevator.
 

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It's much easier to ride the horse in the direction its going.
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Reply #4 - Oct 9th, 2017 at 2:54pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 321
****
 
I got the wheel pants put together and trimmed and sanded to shape.  I'm thinking of using the wheels in the photo.  They aren't the lightest (although I think they are called ultra light or something close to that).  Another idea is that I will cut one in half and only use 1/2 wheel per pant.  It will be a non-functioning wheel, but cut weight.

I'm also starting to work on the front.  I didn't have any 1/32 sheet on hand, so I spent time sanding down a 1/16th sheet !!!  It worked, but not perfect and lots of effort.  I'm also starting the under nose area.   Don't ask about the hole in the bottom sheeting - for some reason I thought I need it - ops.  I do need to work on the landing gear as well.  I have the wire bent and just need to figure out my install/mount.
 

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It's much easier to ride the horse in the direction its going.
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Reply #3 - Oct 5th, 2017 at 7:44pm

Sky9pilot   Offline
Administrator
Stick & Tissue
Kelso, WA 98626 USA

Posts: 8302
*****
 
Just about any wing can be built using the cracked rib construction Bob.  Just use turbulator strips between the spar and L.E. on the ribs from root to tip as desired for rounding out the airfoil. (But the F-117 showed the triangulated airfoil will fly fine)
You can vary the turbulator strips in size from 1/16" sq to larger sizes.
Tom
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #2 - Oct 5th, 2017 at 1:28pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 321
****
 
My fuselage came together well yesterday.  It's fairly straight compared to my usual and seems strong and light.  I started to cut some turtle deck formers so that will be next.
 

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It's much easier to ride the horse in the direction its going.
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Reply #1 - Oct 5th, 2017 at 12:39am

bigrip74   Offline
Global Moderator
What did l do this time!
Austin, Texas

Posts: 4753
****
 
Brad, I love racers also and your build will keep me watching.

Bob
 

IF IT AINT BROKE DONT FIX IT!
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Oct 4th, 2017 at 1:55pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 321
****
 
I've started to build a "Lil Gem" racer.  After my last build this was the simplest plans I had on hand, plus I love racers, so here I go.

It seems that there are many different planes of this design.  Ole Tiger, Miller's Lil Gem, ???  I'll do some research as I build to figure out how I want to finish it out.

My goal for this build is to build LIGHT!!  My tendency is to brace/support and over build for strength and my planes are always quite heavy.  So far so good.  What I've built is lighter than anything I've previously done, so I just have to keep it simple.

I did a cracked rib approach on the wings - that' nice and quick!!
« Last Edit: Oct 4th, 2017 at 4:25pm by Brad »  

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It's much easier to ride the horse in the direction its going.
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