Official Black Horse 2385mm A6M Zero thread

[nicco]

Got all parts for the plane after some delays and have started to build.

Are you guys using the flaps when you are landing?

/N

[SirAbuse]

Sunday was maiden flight. The Zero fly wonderful. It looks tail heavy but it is not.
I had two problems: First the left wheel gets stuck on the first start of the plane. Propeller demage on the ground an i had to fly without a spinner and with a smaller Biela propeller.

Second the electric gear doesn't extend in the pre flight check. The gear cover hooked somewhere so we screwed it off.

Very much luck on the first flight day.



viele Grüße
Dennis

[SirAbuse]

Hello Nocco,

you will have many fun with this great plane.


Here is an idea for a removal tail.

Mini wing fix like Multiplex Multilock:




Viele Grüße
Dennis

[nicco]

I have got my model now and will start building it. My model is not exactly the same as yours. My motor mount is fixed and for the electric version is there some standoffs to use from the gas version of it.

I will use a custom ring exhaust so I can get the exhaust pipe on the side instead of down and with some smoke on top of that I think it will be really cool!

I will post pictures when I have something to show you!

/N

[SirAbuse]

We yesterday test the FG-73R5 with a Biela Semiscale 3 Blade 22x12. 5411 RPM on the ground.

German noise measurement 71 db(a) at 25 meter distance to the plane.

We did the weigh out and i need 160g lead in the tail. I look now for a light spinner to reduce the lead.

I will now make the tail unscrewable.



Viele Grüße
Dennis

[f4u ausie]

looks incredible luv the look of the radial saito?? i think

[SirAbuse]

Almost finished...

[bananaman]

So you removed material from the engine mount (to fit the exhaust) and then you added some carbon fiber + epoxy on the inside to reinforce it, is that correct?

Yes, for the Keleo exhaust ring, if you go with the standard flex pipes you'll be able to route them clear.

What is the recommended distance between the ring muffler and engine mount?

It sort of wraps around it so you need to take away material to get it to fit. My exhaust clears the mount by 9mm. The reason for that distance? That is what it was after linishing.
You could cut off the front and sides of the bolt-on mount, add another plate and use long standoffs

How large is the place for tank and electronics, can I fit a smoke system as well?

Very large, the whole top fwd half of the fuselage comes off like many aerobatic models. Yes.

Maybe the picture shows the mount better. It has 5mm spacers in this image that I've taken away. You'll have to expand and lengthen the cowl slots for the stub exhausts to get prop clearance. The ignition sits on top of the mount behind the engine.
What I really like about the access to the fuselage and this mount is that you can reach in and prime the engine with your finger, rotate the prop until your finger is just wet, then put the top/canopy back on. This engine starts every time hot or cold within 2 flicks that way.

[nicco]

You will like both. Make sure you put the motor back as far you can install it, the cowl will limit how far due to the exhaust stubs I took away material to move mine back a bit more, and don't glue that tail cap on until you balance.

So you removed material from the engine mount (to fit the exhaust) and then you added some carbon fiber + epoxy on the inside to reinforce it, is that correct?

What is the recommended distance between the ring muffler and engine mount?

How large is the place for tank and electronics, can I fit a smoke system as well?

/N

[bananaman]

You will like both. Make sure you put the motor back as far you can install it, the cowl will limit how far due to the exhaust stubs I took away material to move mine back a bit more, and don't glue that tail cap on until you balance.

[nicco]

Total length 2040mm (a little over 6'8"), length from spinner tip to back of elevator at root, 1860mm (a little over 6'1"). My spinner is 6mm shorter than stock. You could take the original spinner cap off and save about 70mm.

Thanks, it will fit in the car. Plane and motor (Satio 90R3) are ordered! Will be fun!

/N

[AustinChadwick]

Got mine put together with an EME 70cc Twin. Fits perfectly. Love the model. Well put together overall. A few things here and there in the build that need adjusted. Overall flies beautifully. On rails. And the BH models are so light. We weighed it in at 25 lbs. For a 94" plane, that's unheard of. And very durable. Well done MotionRC. Now get to work no the BH BF-109!!!!!

Here is a video of my third flight.

https://www.youtube.com/watch?v=LWBDsMorkYc

[bananaman]

Total length 2040mm (a little over 6'8"), length from spinner tip to back of elevator at root, 1860mm (a little over 6'1"). My spinner is 6mm shorter than stock. You could take the original spinner cap off and save about 70mm.

[nicco]

Can someone take the measurement from the spinner to the elevator? Think putting it in the car with the rudder between the front seats and then be able to close the hatch...

Looks like a great warbird!

/N

[SirAbuse]

Description:

https://www.saito-mfg.com/Adobe/FG-60R3_73R5%20_conversion_mount.pdf

Manual:

https://sample.saito-mfg.com/wordpress/wp-content/uploads/2019/12/henkan-maunt-eng.pdf

You get closer to the firewall. 2,5-3 cm. My 73R5 is 2cm to long for the A6m cowling. Prop and Spinner are stick out too much.

Viele Grüße
Dennis

[nicco]

bananaman Very nice pictures from the plane.

I had to cut the gas mount for the Saito R73R5 too. The mount from the engine is too big for the wood mount from the plane. The wood noses must cut off. Ring muffer has enough space.

On the Saito website is a convertion mount for the FG 60R3 and the FG 73R5. But not to buy here in germany.

But the kit looks very fantastic.

Viele Grüße
Dennis

How would this mount help? Do you have a link?

Regards
Niklas

[nicco]

Queries about a FG60R3 fitting? A 90 fits fine after some mount rework, mostly due Keleo exhaust. Easy 6mm clearance all round.

What mount rework was needed. Can you post some pictures?

Regards
Niklas

[SirAbuse]

I think yes. Too less power. I have a Hangar 9 RV-4 10,5kg with a Saito FG61 TS. 22x10 2-Blade Prop and i cant fly endless up with it. It looks scale and it is good for slow flying but a Zero must fly fast.

Viele Grüße
Dennis

[nicco]

Hi, do you think a Saito FG-60R3 would be to small for this plane?

[SirAbuse]

Here are some build updates:

Cowling with sound absorption and some grid in the air intake.




Test run with the engine in the plane is done.



I adjust a 5x temp sensor (PBS-T250) from PowerPox Systemes to runs with futaba telemetry and
program the Multiplex WingStabi with SBUS.


Bad luck with the right wing:

Briefly not paying attention and now i have a litle crack on the foil. 😥
I cover ist with some japanese flag sticker.

Viele Grüße
Dennis