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Search: Posts Made By: john491
Showing results 1 to 25 of 193
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Forum: RC Jets
06-19-2022, 12:28 PM
Replies: 8
Views: 688
Posted By john491

Dave, Thanks. I'll try that. John

Dave,
Thanks. I'll try that.
John
Forum: RC Jets
06-19-2022, 08:20 AM
Replies: 8
Views: 688
Posted By john491

https://cimg6.ibsrv.net/gimg/www.rcuniverse.com-vb...

https://cimg6.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1504/20220619_120650_fe7d526aed1781c4d4ba4ef9d6433d68730213c7.jpg
The problem was not so much that there were high spots, but that I...
Forum: RC Jets
06-18-2022, 06:26 PM
Replies: 8
Views: 688
Posted By john491

Finishing epoxy question

I have a wood model coated in epoxy over .75 oz glass cloth. I have kept the epoxy thin and have applied several coats to this point.
My problem is that I have sanded through the epoxy and glass in...
Forum: RC Jets
06-14-2022, 07:02 PM
Replies: 15
Views: 2,236
Posted By john491

The former in your picture that you are pointing...

The former in your picture that you are pointing to appears to be behind the pivot line of the main gear. I'm curious how it will sit on the gear using that CG.
John
Forum: RC Jets
06-12-2022, 07:16 PM
Replies: 1
Views: 294
Posted By john491

A little more information, Fuselage length is...

A little more information,
Fuselage length is 62", Wing span is 52". Hoped for weight is under 11 pounds. That is a Xicoy X-45 for power.
John
Forum: RC Jets
06-12-2022, 07:11 PM
Replies: 1
Views: 294
Posted By john491

A Phoenix

Last year I had the misfortune to lose a Regal Eagle I put together from parts....
Forum: RC Jets
05-19-2022, 10:18 AM
Replies: 5
Views: 454
Posted By john491

This model is an amalgamation of parts I have...

This model is an amalgamation of parts I have saved. When I got bored recently, I started putting parts and pieces together.

[QUOTE=Dave Wilshere;12728377]How big is the model? Do you really have...
Forum: RC Jets
05-18-2022, 04:23 PM
Replies: 5
Views: 454
Posted By john491

I thought of using a bushing, but I am afraid of...

I thought of using a bushing, but I am afraid of it slipping as this is the control rod for a flying stab. As a last resort before making my own, I was considering green Loctite on a bushing to the...
Forum: RC Jets
05-18-2022, 02:53 PM
Replies: 5
Views: 454
Posted By john491

Aluminum control arm

I need a little help in locating an aluminum 3/16" opening clamp style control arm....
Forum: RC Jets
05-02-2022, 04:20 PM
Replies: 9
Views: 428
Posted By john491

Turns out after doing the math three times and...

Turns out after doing the math three times and drawing it all out on a large tile that my TLAR was within parameters. The actual pivot point of my stab calculates as 20% so I should be good to go.
...
Forum: RC Jets
05-02-2022, 03:33 PM
Replies: 9
Views: 428
Posted By john491

Thanks for the assistance. Now to do a little...

Thanks for the assistance. Now to do a little math.
John
Forum: RC Jets
05-02-2022, 01:34 PM
Replies: 9
Views: 428
Posted By john491

Pivot point for flying stab

I have searched extensively and not found the answer to the preferred location of the pivot point for a flying stab. It seems that everything is an ARF and that decision has already been made by...
Forum: RC Jets
04-29-2022, 03:46 PM
Replies: 10
Views: 767
Posted By john491

That is an excellent suggestion. That is the...

That is an excellent suggestion. That is the approach I have used in several larger models such as Ziroli the F9F Panther.
Unfortunately in this case the aileron is only .25" at its thickest. I...
Forum: RC Jets
04-29-2022, 07:09 AM
Replies: 10
Views: 767
Posted By john491

This is a case of wanting to try a bit of...

This is a case of wanting to try a bit of different engineering, and because the opportunity is there. The plane is an old ducted fan model which I had extensive experience with landing deadstick....
Forum: RC Jets
04-28-2022, 05:58 PM
Replies: 10
Views: 767
Posted By john491

Adding flaps

I have started on a rebuild of a plane I have rebuilt five times already. I'm currently wondering if I can add flaps on this go around. As it turns out I'm having to reattach the strip ailerons the...
Forum: RC Jets
03-27-2022, 10:11 AM
Replies: 10
Views: 827
Posted By john491

Flying stab or fixed stabilizer and elevator

I am soliciting opinions here in an effort to make a decision on a build I am designing. As the title suggests the question is whether to go with a flying stab or a fixed stabilizer and an elevator....
Forum: RC Jets
03-26-2022, 01:23 PM
Replies: 8
Views: 1,469
Posted By john491

Zeeb, The model in question was a rebuilt and...

Zeeb,
The model in question was a rebuilt and reprocessed Parkinson Regal Eagle. It seems that some parts, like the fully sheeted wings, survive almost any crash, numerous times, so I recycle them....
Forum: RC Jets
03-25-2022, 05:02 PM
Replies: 8
Views: 1,469
Posted By john491

In this particular case the crash was due to...

In this particular case the crash was due to flutter, and a bit of bad piloting.
I had made four passes around the field on the maiden flight when my spotter said he thought he saw an aileron...
Forum: RC Jets
03-25-2022, 02:21 PM
Replies: 8
Views: 1,469
Posted By john491

Thank you for the information. This could be...

Thank you for the information.
This could be why I lost my left stabilizer to flutter, causing the plane to ultimately crash.
John
Forum: RC Jets
03-25-2022, 01:18 PM
Replies: 8
Views: 1,469
Posted By john491

Sawtooth on stabilizer

Hello,
Can anyone tell me why there is a sawtooth on the horizontal stabilizer of a F-15? What purpose does it serve? Is it relevant to models such as ours or is it only for scale purposes?
An...
Forum: RC Jets
03-24-2022, 07:16 PM
Replies: 9
Views: 749
Posted By john491

Fuel tank location in relation to CG

I am working on a new, for me, design. It is kind of freehand. The length of the finished plane will likely be about 60", wingspan about 50" and an all-up weight of about 11 pounds. I will power it...
Forum: RC Jets
03-14-2022, 01:47 PM
Replies: 4
Views: 364
Posted By john491

The wing root chord on my Panther is 16.5". The...

The wing root chord on my Panther is 16.5". The CG has a range of plus or minus about 1/2" and is located at 5 1/2" behind the leading edge at the chord location.
Of note my airframe is a Joe...
Forum: RC Jets
02-19-2022, 10:02 AM
Replies: 13
Views: 801
Posted By john491

Carlos, Private messaging did not provide a...

Carlos,
Private messaging did not provide a method of attaching a picture, so I'll post it here....
Forum: RC Jets
02-12-2022, 11:45 AM
Replies: 4
Views: 715
Posted By john491

Thank you.

Thank you.
Forum: RC Jets
02-12-2022, 10:32 AM
Replies: 4
Views: 715
Posted By john491

Help identify aircraft please

It is with some embarrassment I find I need help in identifying this aircraft. I have several saved images, but none of them named....
Showing results 1 to 25 of 193
 


 
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