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        3D Hammer from Model Aviation AMA, Sep. 05

#1 Artemetra Oct 23, 2005 11:09 PM

3D Hammer from Model Aviation AMA, Sep. 05
2 Attachment(s)
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.

#2 mlh1961 Oct 26, 2005 08:28 AM

This one is on my list of things to build, but I have about 10 ahead of it. What powere system did you use?


#3 Artemetra Oct 26, 2005 10:54 AM

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.

#4 mlh1961 Nov 02, 2005 03:22 PM

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.

#5 Thatovalguy Nov 02, 2005 08:29 PM

For tho's that really want one the Hammer will soon be available from Balsa Products in kit form. Really super flier.

#6 rctrooper Jul 28, 2009 06:25 PM

Hi all,
I could not find the plans for "3D Hammer" ..... any help/link will be highly appreciated.


#7 drlafrance Aug 27, 2009 01:24 PM

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.

#8 Artemetra Sep 01, 2009 10:22 PM

1 Attachment(s)

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.


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