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Old Oct 23, 2005, 11:09 PM
I broke my kerpellor.
Artemetra's Avatar
Salt Lake City
Joined Sep 2004
2,430 Posts
3D Hammer from Model Aviation AMA, Sep. 05

Has anyone built this? I have just completed one, and maidened it today. Flies great! Excellent knife-edge, hovers well, seems a good size for Axi 2212/34 and 1320 3S lipo.

3D Hammer from AMA Model Aviation, September 2005 issue. Flat foam plan and build instructions. By Dick Sarpolus.

Seems odd that I can't find mention of it on RC Groups. Mine is fff, but would work well with depron. Pic is before any decoration.
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Last edited by Artemetra; Oct 24, 2005 at 10:36 AM. Reason: Edited for keywords.
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Old Oct 26, 2005, 08:28 AM
Registered User
Indio, CA.
Joined Sep 2005
511 Posts
This one is on my list of things to build, but I have about 10 ahead of it. What powere system did you use?

mitch
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Old Oct 26, 2005, 10:54 AM
I broke my kerpellor.
Artemetra's Avatar
Salt Lake City
Joined Sep 2004
2,430 Posts
The power was Axi 2212/34, used an 11x7 prop, which I think I like better than a 12x6 that I also tried. Batteries - TP 1320 3-cell lipo, also 1500 and 1700 mAh 3 cells work fine. CC PH35 ESC. I have Hitec H56 servos on the ailerons (1 for both ailerons) and rudder, and a Eflite servo on the elevator. I like the HS56's as I'm always accidentally backdriving my servos when I fit the plane in the old Miata.

The plane has a wide fuse so that must be why it knife-edges well. It hovers almost as well as my FoamtanaS, although it's a little smaller. I'm building another Foamtana and I will get a little more motor on that one. But the Hammer is really great for flat rudder turns, and the rudder is tons of fun. There is the typical weak point at the back of the wing, I have braced it with flat carbon fiber strips down the outsides of the flat fuse sides after a crack.

The blue fff is toughter than Depron, not as brittle. But Depron is nicer to work with.

This Hammer has a special adaptation on it that I plan on testing soon.
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Old Nov 02, 2005, 03:22 PM
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Indio, CA.
Joined Sep 2005
511 Posts
very cool, I have an E-flite park 400 outrunner setting around not doing anything...I may have to move up the build on this one. I have a bunch of other FFF plane plans, I'm thinking about building them all one rainy day and setting up a removeable cartridge type control and motor pack...... we'll see.
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Old Nov 02, 2005, 08:29 PM
Foam rules
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HdG Md.
Joined Jan 2003
4,914 Posts
For tho's that really want one the Hammer will soon be available from Balsa Products in kit form. Really super flier.
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Old Jul 28, 2009, 06:25 PM
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NJ
Joined Sep 2008
55 Posts
Hi all,
I could not find the plans for "3D Hammer" ..... any help/link will be highly appreciated.

TIA
RcTrooper
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Old Aug 27, 2009, 01:24 PM
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Leesburg, FL 34748
Joined Jul 2009
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Hammer

Just brought the kit for $15.00 how can you go wrong with all of the control rods and the landing gear. We will see how it flys soon.
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Old Sep 01, 2009, 10:22 PM
I broke my kerpellor.
Artemetra's Avatar
Salt Lake City
Joined Sep 2004
2,430 Posts
Quote:
Originally Posted by drlafrance
Just brought the kit for $15.00 how can you go wrong with all of the control rods and the landing gear. We will see how it flys soon.
Those guys at Graves seem to really be working hard. Let us hear how it goes.

http://www.gravesrc.com/BALSA_PRODUC...3dhammer37.htm
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