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Old Oct 03, 2007, 02:51 PM
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mars's Avatar
San Francisco, CA
Joined Jan 2002
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A-4 Design & Build Jetset44 Style! - UPDATED!

Hi All,

I started this project back in April. Now that Alfa has a foamie coming out, this may be redundant, but I thought there may be some interest...

This is how the bird looks right now. I will sand it, install gear and paint it as soon as I can. I have plans, but I want to make some changes before posting them.

In the next post I will show some construction photos.

It is based on Jetset44's AMAZINGLY easy construction methods. Thanks for the inspiration!!!

Info:
WS - 24"
Power - LSPJ with 6x4 prop
Batt - 1000Mah 3s Lipo

Mars

UPDATE:

This airframe has been TOTALLY redesigned. The new picture below shows what the new plans will yield. I have decided to build mine without the hump, but a hump is included on the plans. Stay tuned here for a finished A-4 in Blue angels colors in the next couple weeks.

Specs:
Wingspan - 21"
Power - LSPJ with 6x4 prop
Batt - 1320Mah 3s TP Lipo


Thanks,

Mars

FURTHER UPDATE - Tiled 30" plans available in post #83:

http://www.rcgroups.com/forums/showp...6&postcount=83

25"-20" plans on the way...
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Last edited by mars; May 15, 2008 at 06:21 PM.
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Old Oct 03, 2007, 02:57 PM
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mars's Avatar
San Francisco, CA
Joined Jan 2002
577 Posts
Construction Photos

Here are some construction photos.

Mars

PARTS FOR OLD DESIGN
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Last edited by mars; May 15, 2008 at 06:23 PM.
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Old Oct 03, 2007, 03:01 PM
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mars's Avatar
San Francisco, CA
Joined Jan 2002
577 Posts
Before Posting Plans...

I really think the plans should be modified so the top of the intakes aligns with the top of the fuselage. When I do this it will require less filler to build the plane as a no-hump version and make it look good.

I have actually sanded the nose and cockpit area more since I took a picture of the plane. I will try to get a newer photo of the plane soon.

Mars
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Old Oct 03, 2007, 03:14 PM
It's a trap!
GotrekGurnisson's Avatar
Brisbane, Australia
Joined Feb 2006
3,143 Posts
Not a bad prototype. The Scooter is a difficult subject to distill into a small number of parts, but it seems you've done a good job. With some refinement of the plans you'll have a very nice end result, one that is definately not redundant. I'm sure you'll garner some interest and advice from the usual suspects. Good work and keep it up!
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Old Oct 03, 2007, 11:29 PM
Don't look at me like that....
62pilot's Avatar
United States, AR, McDougal
Joined Aug 2005
2,804 Posts
I see you used the layer approach to the air-intakes. I did that with the round fuse on my F-4u and it worked great. I have thought of doing an F-16 edf in that style. Should make for a strong lite "hollow' fuse.





Nice looking bird
Tom
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Old Oct 04, 2007, 09:01 AM
agriebel's Avatar
Madison WI
Joined Aug 2003
1,805 Posts
Wow, surprising nice the way it turned out. Other than weight, the intakes wouldn't even have to be hollow. I would certainly be interested in the plans if you make them available!
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Old Oct 05, 2007, 01:23 AM
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Rudi's Avatar
Österreich, Oberösterreich, Laakirchen
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Hi Mars,

perfect job !

Rudi
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Old Oct 27, 2007, 12:11 PM
agriebel's Avatar
Madison WI
Joined Aug 2003
1,805 Posts
Did you ever finish this up? How about some plans...
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Old Oct 27, 2007, 05:12 PM
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mars's Avatar
San Francisco, CA
Joined Jan 2002
577 Posts
Slow Worker...Life gets in the way!

I have put a final coat of poly on the airframe and will start painting next week. I am really slow at building...

I need to clean the plans up some and am really not too happy with the shape of the nose. The fuse is a bit too wide at the cockpit and the nose gets too square near the front of the fuse. Two things I would really like to change in the plans.

I will make the plan changes next week and then let you have them Friday with the understanding that the new plans will be untested...I would love to see you build the plane though.

Hopefully be the end of next week I can have the thing mostly done...

Marshall
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Old Oct 27, 2007, 05:24 PM
agriebel's Avatar
Madison WI
Joined Aug 2003
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Great, I look forward to them. I also have to finish my F-105 project.
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Old Oct 27, 2007, 06:09 PM
Registered User
Ann Arbor, Michigan, United States
Joined Sep 2003
4,778 Posts
nice job mars! you've done a great job capturing the lines of the A-4. thanks a ton for posting plans. i know how much time and effort it takes to do that. i look forward to building a version. what scale is yours?

agriebel- do you have pics of your F-105? i'm trying to finish mine off. i'm working on the canopy at this time. how far along are you?

-beanie
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Old Oct 27, 2007, 08:47 PM
Held by Grace
BDOG1's Avatar
Upstate New York
Joined Apr 2006
277 Posts
A-4

Very Nice !I look forward to your plans when you get them done.
I saw the Alpha A-4 fly at N.E.A.T. this year and it was very impressive but so is the price tag and I would rather build than buy.
Great Work :Mike
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Old Oct 27, 2007, 09:22 PM
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mars's Avatar
San Francisco, CA
Joined Jan 2002
577 Posts
Great Motivator!!

Thank you all,

The interest in these plans has really motivated me to get going!

I will work diligently to get these out to you guys late next week.

Marshall

PS - All I want from YOU in return is some pictures of the planes if you decide to build!

Thanks again!
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Old Oct 29, 2007, 09:28 AM
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Racine, WI AMA# 809291
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That looks Great!!!
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Old Nov 01, 2007, 05:14 PM
agriebel's Avatar
Madison WI
Joined Aug 2003
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beanie, my F-105 is still just a bunch of cut foam yet.
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