An APC 18X6W

Hi all,
This has been a great thread, so I thought you may like to hear about the details of my CAP-X.

I've strapped a Zenoah G45 (turning a 20x10 carbon prop) to the front of mine (not the lightest lump, I know!) with an AUW ex fuel of 15lb
In terms of flyability, it is superb - plenty of vertical pull and great handling. I was concerned about tip-stall on landing, so checking the tip-stall up in the air (around 3 mistakes high!) it will do it, but only at v.slow airspeed and a good deal of up elevator.

To strap the Zenoah on, I did need to make a small firewall mod (cut a small chunk out and then reinforced behind, plus I have also filleted and glassed areas of the firewall and box for strength, as the zenoah is a bit heavy).
I have fitted a carb-bend and intake trumpet to the G45, which had a number of benefits for me - first, the carb bend puts enables a throttle linkage in a sensible, straightforward way. Second, the carb-bend puts enables the trumpet to be almost in parallel to the firewall sides, and thirdly, it stops the atomised charge being sucked out of the carb when flying (ie more power and more efficient)

To get the C of G right, I have fitted my powerpacks (2x 7.4v 2220mAh lipo) back in the fuselage. These connect in to an EMCOTEC DPSI BIC (I guess many of you know about these, but for those that don't (and I didn't) it is basically a dual input (from batteries) dual output (to rx) lipo compatible regulator for 5.5v output, plus other functions for telling you how much current you've drawn, peak current etc).

Other than that, it has some chunky Hitec servos, Futaba PCM rx, and that is about it...!

Hope somebody finds this useful.

Rgds

Fido

thanks for the report fido and welcome to the forums!

15lbs does seem a bit of a piggy for that size airframe but its nice to hear it flies well

Any reports on the cap x with a saito 220? I have had this plane for a few months now but been on another project. This one is going together this week am just waiting on servos Hitec 5985's all around. Chip Hyde e-mailed me on that combo and says its perfect. Should weigh about 11.5lb+/-. I'm thinking about replacing the stock landing gear with carbon fiber as well. Any feedback??? EMVIN

Emvin, I have a OS 160 in mine and it has lots of power. Will clime at 3/4 thro and can hang on prop little over half. So if the OS 160 has enough power I know the Saito 220 will do very well. I myself was thinking about the Saito 220 but went looked at fuel and what I go through with on my Saito 100 I went with a 2 stroke.

Patzane, thanks for the feedback. Did you or anyone else have any issues while building that I might need to know??

EMVIN put together was an easy. I used Hitech servos all around. The elevator servos cutout was a tab bit big. Other than that the plane was a breeze to put togther. If you read through prior pages, a little nose weight might be needed. As I told you I have a os 160 with battery, gas tank, all way to front and still had to add about 4 oz of weight. I don't know the weight difference between the Saito 220 and the OS 160

Great!!! Thanks.. I'll keep you posted on my progress.......EMVIN....

Anyone.......I have what seems to be a pretty serious prob. The rear elevator servo openings are to big...If I center the servo in the opening there is barley enough to screw into. Has anyone run into this?

I didn't think it was that big of deal. I just made a wider rail and glued it on.

yEAH after looking it over its the only thing to do. I'm suprised somthing like that made it through production....THNX....

EMVIN I had the same problem and did what tom did was glued an extra rail

Thnx Patzane. Are you doing much 3D? If so what do you think? Harriers, Harrier roll's, Hovers, Blenders, etc.... I,m flying a 73" somenzini Yak that I'm very partial to and am not sure if this plane will hold up against it........

Emvin I have not tried any Harrier or Harrier Roll's. However I love to fo blenders going into a flat spin with this cap. Knife Edge very easy did not have to do any programming at all.

Cool!!! Cant wait to get mine in the air. I'm about half way done....EMVIN

OK It weighed in at 12lb 14oz....That seems a little heavy.....However the saito 220 has something to do with that...It balanced perfectly at 3.5" back from the leading edge. there is a 6volt battery mounted just behind the fuel tank....Any comments ????? Feedback Please!!!!

Emvin that is about avg. as the weight. Mine weighted in around 14 close to 15lb. I had to add weight to the nose

Glad to hear I'm not the only one....I was shootong for under 12. The cap x is advertised as being in the 10-11.5 range so I was concerened about the wing loading.

you should be fine. I am running an os 160 and it has lots of power for this baby. Hover at 1/2 to 3/4 thro. I know the satio will do much better

Hey patzane, how's the Cap? This thread seems to have stoped. I just started on mine, it's going to be my winter project. I will have an OS 160 with a perry pump on it, but haven't decided on my servos yet. I think I want to go digital and coreless though.

Flyboy the cap is going well. I been a few week since I last flew it due to bust work schedule. I have about 65 flights on it now. Could have much more if it wasn't for work. So far the plane is holding up well. The only part I hate about the plane is the covering. It is very cheap and everything peels. I was thinking about recovering it doing the winter, but don't know what color. It a few fun plane to fly.

FLYBOY, I agree with PATZANE. The covering is terrible.. I already lost the blue on the leading edge top, and it is peeling all over. So far I have about 30 +/- flights on mine. Inverted flat spins great, Harriers great, Hovers OK ( it seems to be alot more work than my Yak), Knife edge there is alot of coupling (is that spelled right?), but, mixed most of it out. Watch out for the "Cap Snap". My first two or three flights took a little getting used to. As far as servos I'm using Hitec 5985's all around. these are very fast and strong especially at 6volts. If flying 3D they are a must in my opinion. Check out Troybuiltmodels I purchased these servos for about $15 less than Tower was asking. ....EMVIN....

It's true that the Chinacote appears to be causing alot of troubles... I go over mine each season, and only had one tail stripe come loose. On occasion I see a wee little edge popping up and I hit it quick.

BUT use a MEDIUM to MEDIUM-LOW HEAT... when heated too much the pigment "shrinks" away from the clear leaving a "dark window" OR on trim can shrivel faster than you can blink. Slow, extended medium heat, let it cool, again.

Thnx for the tip...

Thanks for the replys and advice guys. I can't wait to get it built over the next couple of months. I will seal the leading edge of all the covering with clear nail polish or something. I did buy this plane the end of last summer which was probably one of the last ones with the red, white and blue colors. (Breitling)