KidEpoxy

For anyone but CP, Fast & Final maidens might not work,
but given the speed that CP builds planes, and the speed he flies them, it could work out for him.
Each weekend he could show up with a crate of 20 fuzes & 25 wings, who cares how many make it back home if they fly fast enough.


Oh, now that SR77 is here,
CP could consider a Mid-Engine & Shaft layout to help with balanceing his TwinFever,
aint that right SR? [8D]

combatpigg

My Feedback: (3)

Progress has ground to a halt while I scrape off some uncured resin. Working with small batches and not being real carefull with mixing ratio and mixing technique probably are the main causes. Anyway, I've been working with a single edge razor and scraping the goo from some spots. Once the top side is all glassed, then the under belly can be worked on and this sucker won't be that far from being RTF.

MJD

My Feedback: (1)

I think you should try it now, and if it works okay, you know it will fly even better once you cover the outer panels. Might save you some time..?

MJD

Andrew

In the words from the Tuttles on American Chopper: Hey, that's sick man!!!

KidEpoxy

"I think you should try it now, and if it works okay, you know it will fly even better once you cover the outer panels. Might save you some time..? "

Why not?
That amount of wing area worked ok for the F104 Manned Missile, right?
I think you actually have more than the Starfighter area without the pannels

Besides, with the Duct Tape cover he was using in the other pic, the rest of cover job wont take long.

exocet-RCU

My Feedback: (1)

CP

Has this thing flown yet? you get a lurker all excited and then leave them out in the cold, hanging for info.[]

My name is Tim, by the way. You are a great builder. I haven't built in a couple of years but I just bought RD's SureShark to get me back into the little planes. That's how I started many years ago.

Would love to get an update on the TWIN.

Tim

combatpigg

My Feedback: (3)

Hi Tim, thanks for the compliment...but I'm not a great builder, I just do a great deal of building.
Look up Tom Dixon, Windy Urtnowski, Phil Granderson, Bob Hunt, Paul Walker, Dan Rutherford, Howard Rush........for guys who not only build pretty but very light. In the pylon and pattern arenas there are dozens of others who are masters at the craft. Comp 3D has its' own budding crop of geniuses. Most of the excellence in this functional art is competition driven......for those who down grade competition, they have that to thank for the excellent array of sport models to choose from that use advanced techniques and design wisdom..

Anyway, the twin is getting the same treatment on the bottom side that it did on top. I need to sand the fillets and apply at least one primer coat of epoxy, then glass the bottom and bring it up to the same level of "doneness" that the top side is at. Then the whole works will get treated to a nice coat of 2 part primer, more sanding, more primer, then top coat the whole enchilada with flat black Klasskote. Whew!

combatpigg

My Feedback: (3)

[8D]

rainedave

My Feedback: (1)

Dude, I just now saw this thread!!! That is one amazing design, cp! I haven't even had time to read the thread. I just had to post and say Awesome!

David

combatpigg

My Feedback: (3)

Thanks, RD. If this one flys half way decently, I'm tempted to slice it up so that tracings can be taken off the chunks to make formers for a 100% balsa plane. This style of construction is too time consuming and heavy.

KidEpoxy

Sweet lookin bird.
But ohhh man, I could lose orientation while taxiing that thing to the runway.
You get some new cyborg eyes installed, or what?

combatpigg

My Feedback: (3)

I hate to spoil the looks of it, but it might not be easy to fly with the "CIA" paint scheme . There was a sketch of a Airforce version, not as cool but practical. I think white on black could be treacherous too. Another problem is I'm used to having the highlights on top which ruins the looks even more. I'm going to trade noted with Funkworks in the speed forum and see what he did on his.

MJD

My Feedback: (1)

Heh heh.. at least some day-glo or white panels on the vertical stabs and something underneath! Way cool CP!

I was thinking about 1/2A's and pitch speed and picked up a couple of MA 5.5x4.5, so's I can trim them down to 4.something and check them out as candidates for small zippy 1/2A models. Not sure they'd do better than a 4.2x4 APC though.

MJD

Remby

My Feedback: (3)

Combatpigg;
Black and white should work well, it's been used for rockets punching through clouds, and should do the same for that cooool looking jet you have there.

That sketch shows something on the back of the bird, any info on that?

digital_trucker

The blackbird was redesignated the M-21 when carrying the D-21 recon drone (which is what that doodad is that's mounted on it).

More info on the D-21;

http://www.wvi.com/~sr71webmaster/d21~1.htm

combatpigg

My Feedback: (3)

DT, thanks for linking us to the history behind the little guy riding piggy back. What a sickening story about the pilot who was killed by this pipe dream that was most likely concocted by guys who get air sick from being on a 6 foot ladder. All this time I thought the thing riding piggy back was just an artists' concept

I've settled on white stripes on top......and the realization that this plane needs a launcher contraption. There is no way to throw this thing, unless I can get someone from "Labor Ready".

Japanman

The looks of it suit some kind of cool catapult/ launching device...
J.M

digital_trucker

Why not use rocket motors and launch the thing that way...off a rail?

MJD

My Feedback: (1)

The nice thing about 1/2A''s is that they use pennies of fuel per flight. At 29 ounces you are stuck with composite motors, and would need at minimum a high thrust shorter burn E to get it off the rail at a stable velocity. Seems to defeat the purpose - BUT - I know how cool it would look!

<JD

KidEpoxy

How about mounting the Drone on a piggyback rail on the TwinFever,
that mounts on a piggyback rail on a .40 Trainer.

Have the .40 take them up & let them go.

digital_trucker

...or just build a scale B-52 model for a launch vehicle.

MJD

My Feedback: (1)

Or.. for test flights at least have a buddy piggyback up the twin on a jerry-rigged rack?!? Seems like both a sensible and cool-fun way to buy yourself an opportunity to figure the thing out before anything unwanted happens.

Armchair consultants.. sheesh!

MJD

ProBroJoe

You mean like this?

combatpigg

My Feedback: (3)

Those are all great ideas! I thought about using a simple Hi-Start, but figured that the props might get tangled in the line. I think a skid that isn''t too complex will be fun to try. The ultimate goal is to get some air time and if lucky, take the plane home and make patterns off of it to build a hollow balsa and Monokote copy.
I haven''t checked the model for buoyancy with the engines running yet, one of them is brand new and needs some TLC. Side jobs have cut into building time lately, but this is the time of year to get a jump on yard work before jungle season begins.

Johnny C!

Pigg........

That''s awesssssssoooooommmmmmeeeee......


I have one 1/2A twin now & I
have another in the works.

Twins are great, but 1/2a twins are
twice the fun.

Good Luck with your new toy & we want
a flight report asap!

Johnny C!