another one

Here's the little micro PBF I built when I was up in Buffalo... Did touch and goes on the hotel room bed... LOL!!

The gear

control rods

I used a GWS IPS A motor with a 10 x 4.7 prop. HS - 55 servos, GWS pico RX, Castle creations 7 amp ESC, 8 cell 300 mAh NiMh packs. Zepron 3 mm foam for everything else... Hinged it with packing tape.

Had a lot of fun with it in Buffalo.... was out flinging it kinda late when it was almost dark... I was banking around a turn and got it skewered by a tree.... It was flying along then all of a suden... it just stopped mid air.... I couldn't stop laughing....

Over all it flew pretty good.... Had a hard time doing loops... and when I rolled it, it would stop when it got inverted.... I think it needs more power....

Man, what some guys will come up with to get a little stick time! You can tell Paul isn't happy with just reading an RC magazine or dreaming about his next project while in the hotel, he has to have a transmitter in his hands!

Actually, you're quite creative. Don't let any school kids find out about these or they will be flying them around in study hall.

Hey Paul,

what are the measurements of your little PBF? Looks to be about 14x14 with 2" elevons...is that about right?

It's 14 1/2" with 2 1/2" elevons...

Paul
Pretty cool. Thought of the same thing myslf, but I am been flying IFOs right now. To lose some weight, you may try LiPoly twin pack.

Just bought a li-poly charger.. so I should be moving up to that setup soon.

Paul! Cool! If you want to get really crazy, put a 3-cell pack on it. Maybe too much power???

Paul - Buffalo with do that to a guy <LOL> I know, I was born there <GRIN>
You ought to try out the Mini Gee Bee from Horse Fly Hobbies.
http://www.geocities.com/horseflyhobbies/
Simuliar to your PBF. Same equip. as you mini PBF. I test flew mine today with a rudder mod. that I added. Flat spins upright & inverted. Waterfalls, harriers, hovers, torque rolls. Its a ball, plus its got the CF rod protecting the nose like the UFO, but I like it better (IMO) Ck it out when you get a chance.
Kevin

There are a couple of guys in wichita ks that have a similar setup. They are TR'in with the "A" motor and a 2 cell kokam pack. I have an old trashed pico stick.. This may be my next project. Where are you gettin zepron?

Later,
Matt

Kevin - I bought one before I built the Micro PBF... I didn't have time to build it and I didn't want to ruin it on the trip to Buffalo.... So it sits in my Garage awaiting some time.... I thought the same thing about the rudder... What motor, battery, servo's did you use? Can you post a pic of your rudder mod?

Paul - I went with AV8's option #2 set-up for my mini Gee Bee with an extra servo of course. Option #2 has the Li-On 560 mA, 3 cell pack, GWS PICO Std servos, ESC, GWS A motor, & GWS 10x4.7 elec. prop. Works great! I incorporated the rudder after trying to get the curvature out of the tail of my fuse. I tried to get it out during assy. without any luck. I test flew it with only 2 servos, and didn't like it. I then cut the rudder and rigged it out. It was great after that. I'll post a pic later, though it is ulgy since I cut my rudder after assy.
Kevin

Here's first pic

Here is the second one

I just 'eyeballed' the size of the rudder. This is not rocket science, so go for it!
Kevin

Does GWS have a website? If not where can I find a place that sells the GWS 7.2 'A' Drive?

Kevin - Does the GWS have enough?

Kevin, looks very nice. How did you rehinged the rudder, and where did you mount the rudder servo ?

Yeah! It hovers at less than half throttle with a charged batt. easily! (Batt. - 3 cell Kokam 560 mA Li-on)

Ulf - look closely at the pic of the Mini Gee Bee upside down. You'll see the rudder servo towards the rear of the A/C. I just cut a slot in the bottom-side of the fuse and used servo tape to fasten it to the side of the fuse. I then used thread & a little thin CA to make up my Pull-Pull. The rudder is hinged just using cellophane tape (a.k.a. Scotch Tape) Worked Great!
Hope that this helps!
Kevin

Kevin, where do you have your CG set on the little Gee Bee ? Will it still balance as per instructions with the rudder servo in that location, otr does the CG need to be moved back anyway ?
I am building mine right now. Goes together real quick.

Ulf - I balanced mine in the same location as the instructions without any issues. I mounted an extra long pc. of velcro for my batt. so that I could play with the CG. Lets face it, that extra PICO std. servo doesn't add enough weight to really worry about it.
Kevin

Thanks Kevin. Mine will have a 9 gramm Cirrus servo for the rudder. About the same specs and size as the Pico Std. Got them on sale for $12 at my LHS. Couldn't resist. They where 30% off regular price.
Since I am new to all this electric stuff, I am not really familiar how everything gets attached, and don't want to screw things up. Can you post a close up picture of where your battery sits, and how your engine is mounted, as well as rudder servo. Thanks