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Search: Posts Made By: orthobird
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07-26-2021, 02:58 AM
Replies: 191
Views: 62,731
Posted By orthobird

thank you Tom, I do have the cortex pro...

thank you Tom,

I do have the cortex pro installed and it works very well.

I have ordered wheels from ROBART one year ago, but still no delivery!!

i just checked, and the prop is 27 x 10
...
07-26-2021, 01:52 AM
Replies: 191
Views: 62,731
Posted By orthobird

Yesterday was finally the maiden! What a fun...

Yesterday was finally the maiden!

What a fun day and this airplane flies great!!

I am using a DA 100 inline and still breaking it in.
Got 7400 rpm in the air and max front and rear cylinder...
06-01-2021, 04:18 AM
Replies: 191
Views: 62,731
Posted By orthobird

In setting up this airplane, what is consensus on...

In setting up this airplane, what is consensus on the throws for the elevators and ailerons?


The manual for the P-51 (not the racer) states the following:


Aileron = 1/2" up and down
...
05-30-2021, 03:18 AM
Replies: 191
Views: 62,731
Posted By orthobird

ok, so today was supposed to be the day! LOL ...

ok, so today was supposed to be the day! LOL

went out and took my "practice" P-51

which is a CY models fiberglass P-51 with built up wings.

I planned to fly the CY models P-51 1st and do...
11-28-2020, 06:19 AM
Replies: 191
Views: 62,731
Posted By orthobird

i used a standard HV servo , high torque had...

i used a standard HV servo , high torque

had to get creative in the area to install

...
11-21-2020, 04:41 AM
Replies: 191
Views: 62,731
Posted By orthobird

I also have run the motor on the ground and the...

I also have run the motor on the ground and the baffling works great.

Temp A is the forward cylinder and Temp B is the rear cylinder.


https://youtu.be/H6bhJOIBtBg
11-21-2020, 03:54 AM
Replies: 191
Views: 62,731
Posted By orthobird

turns out my CG calculations were all wrong. I...

turns out my CG calculations were all wrong. I was measuring the CG way too forward, and thus, I made the airplane way nose heavy.

I shifted the CG, and now it is about 3/4" forward of the...
10-31-2020, 10:49 AM
Replies: 191
Views: 62,731
Posted By orthobird

Got her up on the ground for the 1st time: ...

Got her up on the ground for the 1st time:

https://cimg0.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x952/img_3421_d4f38fe1ddeb49797aa603717771ab98a8dbd275.jpg


...
10-31-2020, 04:52 AM
Replies: 191
Views: 62,731
Posted By orthobird

some interesting facts: KOLM 230 inline, 3...

some interesting facts:
KOLM 230 inline, 3 cylinder = weight = 7770 grams = 17.12 pounds
DA 100 inline twin = 6.9 pounds
10-31-2020, 04:42 AM
Replies: 191
Views: 62,731
Posted By orthobird

ok Rob, i see your was between 47 and 48 pounds. ...

ok Rob, i see your was between 47 and 48 pounds.

What a dilemma!

mine is heavy, i think.

this is what I had to do:

...
10-31-2020, 04:34 AM
Replies: 191
Views: 62,731
Posted By orthobird

Rob, I just weighed it, 43 pounds i did have...

Rob, I just weighed it, 43 pounds

i did have to add 4 pounds to the nose to get her to balance. otherwise, 39 pounds. I am going to look up your weight to see how close I am to yours.
10-30-2020, 04:25 PM
Replies: 191
Views: 62,731
Posted By orthobird

GG CARF p51 CG and balance

https://cimg9.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1504/img_3410_53f396a4429e8b533997133edc76978c45f0ffa6.jpg
White Rose prop washer, 6 ounces....
10-26-2020, 02:42 AM
Replies: 191
Views: 62,731
Posted By orthobird

Checking the CG

question to you all, how do you determine where the 7" back from leading edge of the root of the wing should be??

is this with wings separated and looking at the root of the wing?

or is this...
10-26-2020, 02:40 AM
Replies: 191
Views: 62,731
Posted By orthobird

that worked like a charm!! Why did I not...

that worked like a charm!!

Why did I not think of that!!

thank you
10-25-2020, 07:01 PM
Replies: 191
Views: 62,731
Posted By orthobird

anyone know the tips or tricks to mount the wing...

anyone know the tips or tricks to mount the wing on the fuselage?


https://cimg5.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1504/img_3358_48a8ebe4269d047690d5d397e2494dfa2fd390f3.jpg...
10-22-2020, 03:14 AM
Replies: 191
Views: 62,731
Posted By orthobird

Wanted to share the baffling for the DA 100...

Wanted to share the baffling for the DA 100 inline and also how I installed the throttle servo, the choke servo, and the ignition units.

...
10-22-2020, 03:05 AM
Replies: 191
Views: 62,731
Posted By orthobird

i was able to manufacture a custom exhaust that...

i was able to manufacture a custom exhaust that is functional.
https://cimg6.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1563/img_3317_fe6f0d552f3251b67b6c339f3f5a070a3febd41c.jpg
Inline DA...
10-18-2020, 11:35 AM
Replies: 191
Views: 62,731
Posted By orthobird

I was able to install the left sided dummy...

I was able to install the left sided dummy exhaust stacks. I did remove 2 of them in order to allow an opening for the 2 carbs. According to the DA website, there needs to be at least a 1/2"...
10-17-2020, 04:13 AM
Replies: 191
Views: 62,731
Posted By orthobird

wanted to share these pictures of installing the...

wanted to share these pictures of installing the baffling kit for a DA 100 inline in the CARF GG P-51.

I did not show the pictures of installing the firewall doubler and the long threaded screws,...
10-15-2020, 02:00 PM
Replies: 191
Views: 62,731
Posted By orthobird

question for the GG owners, when installing the...

question for the GG owners, when installing the engine, is there down thrust? Is there right thrust?
10-10-2020, 04:07 PM
Replies: 191
Views: 62,731
Posted By orthobird

Not on my kit. It lined up very well. I have...

Not on my kit. It lined up very well. I have the GG version. I received it about 1 month ago.

https://youtu.be/PV0Og2Ak_cU
09-15-2020, 04:11 PM
Replies: 191
Views: 62,731
Posted By orthobird

mine arrived today! I am nervous! It is one...

mine arrived today! I am nervous! It is one amazing airplane with regards to build quality.
08-13-2020, 02:34 PM
Replies: 191
Views: 62,731
Posted By orthobird

I am excited, I just ordered mine.

I am excited, I just ordered mine.
08-11-2020, 01:08 AM
Replies: 191
Views: 62,731
Posted By orthobird

beautiful airplane and awesome thread! Thank you...

beautiful airplane and awesome thread! Thank you so much for doing this. It will help others.
Showing results 1 to 24 of 24


 
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