RE: Black Magic v2 builder's thread! *Updated*
 

Thanks Ryan, for that dead on accurate and brutally honest flight report. (FYI Ryan paid cash for that plane, I didn't give it to him). Those are almost my findings to the letter. For those of you living under a rock, Ryan is our current Masters National champ. I wanted an unbiased review of the plane, not the standard "it took 3 clicks of trim and flies better than I can" response. Try that with the plane of your choice, you'll find a laundry list of issues. Pattern design is a balance, and the balance of the V2 is intentionally shifted toward the AMA patterns and P-07.

Interesting about the T thingy. I'd like to see/hear more. Keep in mind folks, this is a mod for FAI ONLY. Although it might make the plane better on the rudder throughout, it's just not needed for the rest of us mortals. The V2 as is may be the best plane out there for all of the AMA patterns right now. It makes the 07 masters pattern easy. This weekend I'll fly it through the others just to see for myself.

So there you guys have it, the good, bad and....ugly...(T thingy) Jeez I was hoping that nasty thing wouldn't work...LOL but that's really good info and answers a lot of design questions I had. I would be very interested to see if it would work with only the vertical portion of it, not the T tail...or what the difference is?

Ok on to other things....

The web site is about to be updated with news and a few other tidbits. I've been a really busy bee since the Nats, and really cool things are getting very close! No official announcements just yet, but stay tuned. This could be really cool if it works out.

Wendell, congrats! It looks like a Black Magic! So did you learn enough on your first 2 meter build to make it worth it? I'll be very interested to hear all of the details when it's completed. Not trying to be condescending, but do you know how to trim a full tilt 2 meter plane? I would strongly suggest you get Jon Lowe to help you on your first day or 2. if your balance and incidences are true, it will be a dream to fly. It does require a little trimming and some mixing, and is well worth the effort to do so from the very first flight. Jon is very good at trimming planes like this. Don't take any chances with this plane....

As for the engine, my suggestion: use an os F plug and cool power 15%. Turn the bottom end screw in (clockwise) about 1/8 turn until it looks like it's at about the 12:30 position if it wre a clock. Open up the high end to about 1 1/2 turn and run it. turn in the high end until it's on the rich side of peak, but not staggering. Run a tank or 3 through it on the ground, close the needle lean one click and fly it.

Now back to this massive pile of foam.....it never ends! [8D]
-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

Thanks, I installed the cowel, tapeoff the fuse an then marked off lines for covering an paint. Painted cowel installed. But you might be able to do a better job of it if it is not installed. Pulled tape then covered up to cowel an where to covering meets the cowel go the covering real hot but be carful not to melt the paint an then off to the cosmedics department an got some womens clear hard-as-nails an aplyed two coats, well see.

RE: Black Magic v2 builder's thread! *Updated*
 

News is now updated on the site.

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

were is the news located, I,am just a dumb old country boy.

RE: Black Magic v2 builder's thread! *Updated*
 

Under the link that says "News"....... ;) (Left side of page)

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

All in all every thing is coming together, but look out for the Elev. covering,black an black will run together if you don't watch it.Fixable. Got all the control horns installed , servoes moun ted an ready,At the exits for the rudder in cut some sleave's so pull-pull wire won't cut into the fuse. Plus installed wing adjusters in the front( Mike do I have to have adjusters in the rear). An just folling around with a pick of the inside of turtle deck.[:@]

RE: Black Magic v2 builder's thread! *Updated*
 

Wings are complete wityh an extra strip of green to fill in the feild

RE: Black Magic v2 builder's thread! *Updated*
 

Hay Dean, Mike is off line an I need a couple ?'s ansured. Do I need all 4 wing adjusters on the BM An Mike said I should get some help on my madine flight to trim. What is the difference from trimming on a Black Magic an a Daddy Rabbit

RE: Black Magic v2 builder's thread! *Updated*
 

Hi Wendall...

Yes you NEED all 4 wing adjusters - you would be taking too big of a risk if one failed. What you can do is install the front adjusters, set the wing incidence and then install the rear adjusters. rechecking the incidence along the way. Mike had a wing adjuster failure at the JAX contest - it does happen.

You could fly it with only one set of adjusters, but it that one adjuster failed - that would be the end of it.....

There is a lot of differences between the rabbit and the magic. The magic will have a different cruising speed than the rabbit and that will determine your pitch trim - etc...

There are a lot of things the pilot will have to adjust to as well, there is also a larger set trim issues to be addressed on a high performance 2m pattern ship as compared to a spa ship. And it would be better for you to get started off right by getting expert advise, Like Mike said Jon Lowe has flown the BM and has the experience and local expertise to get you going. He flies at your club... right??

or I guess you could road trip on down to Atlanta, I am sure Mike offered his help too...

but I do think you should seek expert help when you maiden.

and good luck bro, can't wait to hear about your first flights......

hope that helps, dean

RE: Black Magic v2 builder's thread! *Updated*
 

Boy I'll tell you I really fouled up big time, an I mean big time. I built a 2 meter plane an The truck I have is just a meter an a half. I might half to build a rack to hold the plane up enought to fit it threw the axcess hole to the cab. HA HA. or leave the tail gate down on nice days

RE: Black Magic v2 builder's thread! *Updated*
 

Alright fellows her it is, a few pic's an specs. I know the more I build the lighter they will get. Exactly 11 lbs plus 3/4 oz on right wing. Balanced out great. No tail or nose weight an it is seating a little nose heavy which for me is good.

It has a 140 RX w/pump an tuned O.S. pipe silencer. All Futaba Servoes are S3050 72 oz. for thro, S9153 for Elevator an rudder 167 oz torque an for the Aili I am using S9150 Low Profile with 81 oz torque. All powered by Futaba T7CAP an the reciever is a R148DF-8 Channel FM With a 1700 mah battary from Radio South.

All heavy duty control horns an clevics , all 4-40. I used the D.E.P.S. an it is easyer using it rather then building your own. All carbon fiber an Molly wheel pants.

Covered with Monokote an Lusterkote.This is all I have for now. Bruce Underwood my self an Another SPA polit will put it threw its paces tomorrow.

Wish us luck an will fill you in on the trimmig part tomorrow night.

RE: Black Magic v2 builder's thread! *Updated*
 

Good luck Wendell! You DID get someone to help you with it right? :D

Looks great, I'm sure she'll fly just fine. If it's any consolation, the first pattern plane I ever built from wood was 11 lbs too....they get lighter as you go. But you have to weigh every piece of wood going in, you probably have some boat lumber in that thing somewhere....

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

Yea Mike I slipped in some of that Calif. Redwood for strenth. All in all it was 4 sucessful flights, it is still in one peice HaHa. An my knees are still knocking.I ran 2 20oz. tank fulls on the ground. An then off in to the wild blue younder.A little hairy at first on the elevator an still having some problems with it .Can't get it to fly level. 1 click up an that is to much an the same for down. We tryed changing the incidences on the stab first an then on the wing too. It flys level if I use the sticks no problem but it is noticeable. Right wing drops, so I have to go to flaperon an do some work for that problem. Does loops pertty good, need more adjusting. Knife edge,a lot of work there to. Not to bad tho. I am still learning this 7CAP. All an all Mike thanks for this great plane. Now I have to start saving again for Old Yeller ll. An this one will be fiber glass too. An probly a bigger O.S.
Will keep you informed . I flew befor recieving you last e-mail on the belly pan. I flew with it off for cooling. Could the cause the problems I am having with the elevator? Let me know, O.K.

RE: Black Magic v2 builder's thread! *Updated*
 

if you flew it with the belly pan off....that's a LARGE portion of your airflow missing. Could it cause it to fly wierd? More than likely.

You can't trim the plane until you have all of the plane in the air. You're chasing your tail until it's all in one piece. That is assuming I read you right, you trimmed it with the pan off.

If you install the pan, trim from there. Make sure you have adequate cooling.

if you are having these issues with the pan on, then something is definitely amiss and you'd serve yourself well to find it. Check for warped wings, tail surfaces, etc. If your surfaces are straight and your incidences match, then look for a balance issue with the wing dropping, and check that linkage for the elevator not centering.

Well I'm glad you got it back. I just checked and you went from scratch to flying in 2 months. Not bad, but it does sound like you have some trimming to do. So keep after it!

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

trim settings on your radio may be to high you could be in between trims so to speak try backing down on you trim to a lower number so each click is less of a movement (some one more eloquent with the english language may be able to explain a little better)



gary

RE: Black Magic v2 builder's thread! *Updated*
 

If the belly pan don't solve the problem, thats what I need . Instead of a full click I need a 1/2 click if these radios have such a setting.

RE: Black Magic v2 builder's thread! *Updated*
 

you can change the amount of trim on my 9cap so I would guess you could on your 7 as well.

RE: Black Magic v2 builder's thread! *Updated*
 

Yes, most radios today have a setting where you can set the number of steps for trim. The default setting is 4, so go with 2...or even 1.

Another thing to think about is how much do you have your end points dialed down for normal flight? As in, what percentage of full throw (which is normally 120%) are you actually using? If it's not at least 100% on high rates, and 70% on low, you're giving up a ton of available resolution and centering with the servo.

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

Just another thought . . how long is the control horn 'moment' i.e what is the distance from the elevator to the point of control linkage? If it is too short (linkage too close to the elevator), apart from other potential problems in flight, this will magnify your trim adjustment. Although this usually shows up in a reduced throw rate dialled in on your TX . . ie 50% for full travel (as Mike said).

Cheers, Jeff

RE: Black Magic v2 builder's thread! *Updated*
 

Way to go Wendall ! !

great to hear that the first flights went well.

RE: Black Magic v2 builder's thread! *Updated*
 

Two turns on the stab plus one more on wings an set the trims on the number 1 set for the servo movement an of course the mounted belly pan an it flys like a charm. Thanks Mike an Dean for all the help. Mike sence I don't ever plan on removing the stab what do you think about mounting the stab permently once I get every thing set perfectly.

RE: Black Magic v2 builder's thread! *Updated*
 

Congrats Wendell!!

Man, I realized last week I shipped you that kit at the first of August, so you went from kit to flying in 2 months......

You can mount the stab permanently if you wish, but take it from me, much later on if/when you change something, it's nice to be able to take that stab off with a couple of turns of a screw....but, a THIN bead of silicon at the root of the stabs will make it very much like the best of both worlds...

-Mike

RE: Black Magic v2 builder's thread! *Updated*
 

Congrats Wendell,

I bet you wish your new Black Magic was legal for SPA!

RE: Black Magic v2 builder's thread! *Updated*
 

I am still flying novice so I am still legal. I have been flying AMA here at our local field. Just having troble keeping it in the box with the Rabbit an Phamtom an Kaos all 91 Surpass's. I want to compete next year in Cullman an Huntsville. Thanks on the insite on the epoxie. I know I am over weight but the dremal can get rid of a lot of the epoxie runoff an littin holes to exactly 11 lbs.

RE: Black Magic v2 builder's thread! *Updated*
 

Yo Mike,

I read Ryan's review of the BMv2. He mentioned a skid and used all the rudder he could muster. Do you think a larger vertical stab and rudder would cure these minor quibbles? Not that I need to change them as you and Ryan mentioned, but I'm curious what a tweak here and there might do. I'm going to extend the canopy forward about 6" for access to the speed controller in my E-Powered BMv2, so tweakin' ain't no big deal.

Gene