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spastic's blog
Posted by spastic | Aug 30, 2014 @ 03:09 PM | 734 Views
fun little project i came up with after seeing the ToughJets.com in action at my local field. this one is an f-14 but i plan on doing some other designs as well. If valuehobby.com produces them they will have detailed printed schemes with panel lines and markings, it flies real well, i'm very happy with it.
1.9lbs 9mm EPP foam
about an 18" WS 4.5 oz w/o battery
2204, 1500kv motor
3cell 500mAh lipo
8x4.5 prop cut down to 6" (didnt have any 6" props on me)
2 5g tower pro servos for elevons
Posted by spastic | Aug 03, 2014 @ 03:40 PM | 1,378 Views
i nailed down the sabre design and submitted it to the EPP factory Valuehobby uses. i really like the how it flies now, it's more neutral (coupling) and more behaved than the first one, i also did away with the sub SFG's and the cantilizers, flying the first proto with and without i actually liked it better without. I also nixed the LE step the first one had, like it better without as well.. i think the proto turned out cool looking all black and white with some simple gray stripes on the bottom. the printed scheme i designed is shown in the pics as well
the power system i'm really happy with now, this is my standard..

- 1500kv 2206 new all black valuehobby motor.

-8x4.5 SF no name prop from valuehobby, my new fav prop, just have to drill out the hub for 5.5mm and balance

-12A or 10A (10 has shown to be enough) Funfly (hobbywing) esc

-500mAh 3cell lipo, 46-50g packs the ones i found on hobbyking were 46g not 42 as advertized i think mostly its the super long leads they have. im getting longer flight times with the g-force 50c ones for a couple grams more

-three sg90 towerpro servos, i run these on all my 32" foamies not one has failed yet, i'm sure i just jinxed...Continue Reading
Posted by spastic | Jul 19, 2014 @ 10:12 AM | 1,445 Views
Experimenting with a bunch of aero gadgets, might be too much? I ll have more pics as I go

Just have the pants to do left, tell me what you think, I want your input!

Edit, Ok so I'm taking the cantilizers off and the sub SFG things, just going to have the tip sfg's and the elevator fins, I did not feel any difference with or without the cantilizers, maybe not big enough, I didn't like how they looked too much either.
I changed the shape of the wing a bit.. updated the pics with some schemes....Continue Reading
Posted by spastic | Jul 17, 2014 @ 03:10 PM | 1,723 Views
this is a work in progress, right now it's a 4cell 2200mAh rock ship with a G15 (3715) 1000kv motor 12x6E (or on 3cells 2800mAh 13x8E) and mini servos like hs-85 size, right now i'm using TGY-390V HV servos

im making some changes;
1) lighter and use smaller servos (like 12g HS-65mg or similar) it really doenst need to be a 4cell setup, on 3cells (2200-2800mAh) it will be really good if made lighter

2) slightly less taper and slightly less aileron, right now its just slightly harry to fly it doesn't tip stall or snap without you wanting it to, but you really have to be a good 3D pilot to keep on top of it.. great pilots might like it the way it is but i think most will want it more tame.

3) a hair shorter in the fuse, i think shorter and less taper will make flat spins better, right now it wont do a flat spin

4) servos in the tail and battery will just get strapped to the fuse like the 35" sabre and cap on valuehobby.com (also my designs ) this way the battery can balance for KE better and setup will be easier and people don't like pushrod guides

it will get one of the schemes like on the previous blog post

it is wild to fly, it will tumble like a full-fuse plane even doing pop tops fairly well (most profiles can't do them) KE spins are really nice and tight, KE has some coupling which drives me crazy (roll out), i think its only because the battery is slightly below the center line.

anyway here are the pics, i cut everything myself with a #11...Continue Reading
Posted by spastic | Jul 13, 2014 @ 10:33 PM | 1,972 Views
Schemes can make or break a model (for sales) and i stress over the scheme as much as any other aspect of the design, here are some schemes i'm working on for the G-202 EPP foamy....Continue Reading
Posted by spastic | Jul 09, 2014 @ 04:58 PM | 2,182 Views
Here is a build i did just to see if i could get it to fly well, the factory crashed theirs after 10 seconds.. i didn't have any issues with how it flew!

I think what did them in was the draggy push-rods that are included, i replaced them with goldenrod, nice and smooth now, ill add notes later just getting the pics on here.

Features
-70" span 3 part wing

-fiberglass fuse

-nice ply equipment tray in the fuse

-balsa and ply tail and wing, covered in Genuine Neucover iron on film

-aluminum wing joiner tubes

-CF stab joiner tube (glued in however)

-ailerons and flaps used MG mini servos (emax ES3104)
rudder and elevator used some standard size servos i had around

-fasst 8ch rx

-twin hobbywing 80A esc's (i used 80's because there is no airflow for the esc's)

-twin G-force 25 motors 1100kv, (they fit the nassels better than the G32 size motor would)

-spinning 11x5.5E props (counter rotation)

-4cell 4000mAh could use more for nose...Continue Reading
Posted by spastic | Jul 06, 2014 @ 02:54 PM | 2,164 Views
I finally got one of these new 8mm EPP kits and thought it would make a good start to my blog, this is the latest EPP Laser kit from Valuehobby.com, featuring g10 hardware, real Carbon Fiber (CF) spar, CF push-rods, CF gear legs, lightweight Printed graphics and unique epp zigzag fuse bracing (all for about $25)
The foam is called 30x EPP in China, that means its 30 times expanded, it works out to about 2lbs per sq foot. the kits are CNC hotknife cut.

here is what you will need;
-2204 to a 2206 size (about 29g) outrunner (X mountable) brushless motor, 1500kv recommended for 3cells 1900kv for 2cells lipo

-three, 9g servos, the cheapest ubiquitous 9g towerpro nylon gear servo believe it or not is more than enough torque fast and reliable for $3! each

- 10 to 12A esc i've used both the 10 and 12 amp HobbyWing "FunFly" esc's with much success.

-lipo, depending on the motor 3cell to keep it light, a 370mAh would be ideal, for 2cells 500mAh is good.

-GLUE, i highly recommend NOT using CA (foam safe or regular) on these type of kits, they make a brittle joint and the fumes and kicker smear the graphics! Instead use a glue that does not get brittle such as Foam Tack, Welders or my favorite Quick Grip (QG). normal type thin CA is needed to lock the control linkages in place.

Note on using QG, you can do the thing where you "make a bead then push together the parts then separate them and wait 30sec then stick them back together", but i find...Continue Reading