rm

My Feedback: (27)

That looks nice, I like that.

rm

My Feedback: (27)

Spent the week puttering trying to get a little done each day.

Got the wing adjusters in, wings flushed up to the fuse, wing will be secured with rubber bands, my favorite way to do it. Did some sanding and filling.

Got started on the top front. Put in guidance tubes for the needles, and have the balsa filler blocks drying now and will be doing some more sanding and filling tomorrow.

Got the base for the canopy glued up. Think I'm gonna try to round off the top of the canopy, not totally sure how I'm gonna do it yet, but have an idea.

Last of my servos are on the way as well as a new fuel tank, control horns, and tail wheel. Got my wheel pants today, so can work on them. Would like to do a cg ck before starting on the finishing to see where I'm at.



On the canopy. Anyone know if I sand through the balsa into the foam, will that matter when I go to fiberglass it and paint?

rm

My Feedback: (27)

Gotta love 80 grit.

MTK

It depends on how well you seal the areas you sanded through. If you use epoxy finishing resin to apply the glass with, it won't matter. But if you use epoxy paint like Klass Kote clear to bed the glass, the solvent will melt the foam. Actually, solvent will penetrate very thin balsa so you don't actually need to cut through it. I would use a good coating of hairspray to help seal the balsa first. Hair spray is water based and does not bother foam

kenh3497

I've re-sheeted foam and lapped the new sheeting well over the old so I wind up with full thickness sheeting after sanding. A little (very little) color in the glue tints the glue line so you have a guide when sanding back the new sheeting.

Ken

rm

My Feedback: (27)

Thanks for the info.

Here's how I make my pipe mount. It's worked well for me. Gets placed near the pipes cg. Pipe barely gets warm unlike an aluminum pipe, so haven't worried about melting anything, though most of the components used could handle some heat. As u can imagine the cooling air is plentiful. After a flight I can place my hand around the bottom to lift it up without any problem.

rm

My Feedback: (27)

pics

rm

My Feedback: (27)

pics

rm

My Feedback: (27)

Wts:

fuse, landing gear, axles, wheels, wheel pants, rudder servo, 2 elev servos, surfaces hooked up and hinged, tail wheel installed, fuel tank, throttle servo, choke servo, with chin and canopy 68.1oz
carbon pipe 5.4oz
wing tube 2.2oz
wing left with servo, controls installed, hinged, lead ext 12.9oz
wing rt with servo, controls installed, hinged, lead ext 12.5oz
header 3.5oz
ignition 3.2oz
motor with standoffs 36.5oz
spinner 4.0 oz
prop apc 6.0oz
total 154.3oz (9lbs 10oz)

left with 21.7oz
not included yet:
covering, fiberglassing chin and canopy, paint chin and canopy, rx, batt, switch, fuel line
finish sanding will prob knock off an ounce or 2.

I think I'm in good shape

drac1

My Feedback: (4)

Hi rm,

What spinner are you using? 4oz (113 grams), is very heavy for a spinner.

rm

My Feedback: (27)

Trutrurn 3.5" lightened backplate

drac1

My Feedback: (4)

I'm a bit surprised with that weight. My Tru Turn FAI 3.25" with lightened back plate is 63 grams.

I thought that was too heavy, so I now use Marquette carbon spinners which are 38 grams.

rm

My Feedback: (27)

Make that a solid backplate. I had ordered the lightened but they sent me the solid instead.

I'm not to worried about the weight. Anyway, the way its looking my club is gonna ban anything over 400', so it's not gonna matter, We've got a really paranoid president who sees the faa under every rock and tries to scare everyone to his way of thinking.

rcpattern

My Feedback: (45)

I'm assuming you are flying at an AMA club. If so, contact Chad Budreau at AMA. He is now taking on a lot of the government relations roles and I'm sure he'd be happy to contact your club president and let him know that 400' is not what he seems to think it is. It is still part of an advisory circular, not a hard rule. Chad has been in all the meetings and knows a lot about what is going on. My club hosted the sUAS head Hoot Gibson a couple of weeks ago and it was a good opportunity to really pick his brain.

Arch

rm

My Feedback: (27)

Hey Arch, are u in the DC SFRA over there? I'll find another club if I have to and just practice on weekends, if it should come to that. I know a guy who has a private field who would prob let me use it also.


Good news, the cg came out near perfect. Mark shows it on the front edge of the wing tube. I'm currently just in front of the halfway point of the tube. With the ignition and rx batts yet to mount I can get it just where I'll need it.

Time to tear it down and start sanding and filling. I'm gonna try to round the canopy yet a little more. Cadence has a huge vert stab compared to the nuance which is quite small compared. Fuse size between the two is comparable.

flyintexan

My Feedback: (1)

RM,

Looking good! Sorry I haven't been on rcu in a while but just a point of interest for you... Over the last few sessions I have been moving the cg back and testing. Right now I'm at the back edge of the wing tube and it seems quite good. Not done testing though so it may end up a touch more forward.

I need to get more flights on it but I've been taking out my other plane whenever the weather has been good.

-Mark

rm

My Feedback: (27)

Mark, thanks for the info. I shouldn't have any trouble moving about in that range. Should be ready to start covering this weekend.

rm

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Picked up some carbon APC props to try. 20.5x10, 21x10, and 21x10.5.

21x10 weighs 4.4oz. It's not a wide blade like their other 21x10. I'm thinking it might be a good one to use.

Made a couple changes. Moved the rudder servo forward and also got rid of the choke servo. Realized all I had to do was change the choke position and I could run a wire out the side.

Pipe should be here anytime.

The v2 fourtitude fuel tanks are nice. I like it a lot better then the water bottle type setup.

drac1

My Feedback: (4)

I got the same Carbon props as well. I've run the 21 X 10 and it performs very similar to the normal grey one, but 40 grams lighter. It may have a little more pull in verticals, but I've only had a couple of flights with it yet.
They also make a 21 X 10PN which is the same as the Carbon 21 X 10PN and that's what I'm comparing to.

MTK

The nylon APC,'s in this size are terrible weight wise. Make the plane precess something awful in corners. Even at 4.4 ounces it's a lot of weight but better.

we need props at 75 grams.

rm

My Feedback: (27)

Even my falcon 20x10 carbon prop is at 93g. These apc aren't true carbon props. They are like a blend. They melt a little like plastic when drilling them.

drac1

My Feedback: (4)

Carbon infused - I presume they are nylon/carbon as opposed to nylon/glass.

MAVROS

Hi Drac,

Are you using this prop on YS 185.....What is the weight please?

rgds

drac1

My Feedback: (4)

Hey Mavros,

I'm currently using the 21 X 10 Carbon on my 185cdi - 125.5 grams.

MAVROS

Drac,
Thats a good weight.
Is the performance the same as other prop and where did you buy ?

thank you in advance

rgds