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Search: Posts Made By: John Stainforth
Showing results 1 to 12 of 12
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Forum: 3D Flying!
08-28-2013, 01:52 PM
Replies: 159
Views: 46,243
Posted By John Stainforth

Further to my last reply, I use 15-18% nitro in...

Further to my last reply, I use 15-18% nitro in my Saitos, and only top-name fuel brands. I have found, in both the US and the UK, there are some really bad cheaper brands. I once changed from 12%...
Forum: 3D Flying!
08-28-2013, 01:44 PM
Replies: 159
Views: 46,243
Posted By John Stainforth

First, I am a little surprised that you have...

First, I am a little surprised that you have fitted a Saito 100 to your Katana. My Katana, which has a Saito 82, will hold vertical on 1/3rd power. I have a spare 100 sitting downstairs and it hasn't...
Forum: 3D Flying!
07-22-2013, 02:44 PM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

Wow, what a story! I anticipated other modellers having similar problems, but I did not envisage the hippos and lions. Almost worth the aileron flutter to have a bush-whacking adventure like that!
...
Forum: 3D Flying!
06-03-2013, 07:36 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

Yes, I have sealed the hinge lines. As a result of this experience with flutter, I am<div>(1) Never going to have mechanical advantage worse than 1:1 on any control linkage.</div><div>(2) Always...
Forum: 3D Flying!
05-29-2013, 02:19 PM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

Actually the aileron set-up in the manual (which I used) does not look like 1:1 (see attached), and is very different to the recommended set-up on the Funtana 125, which has the control horn distance...
Forum: 3D Flying!
05-26-2013, 01:50 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

Many thanks for your insights re the flutter, which certainly wasn't good but I am hoping it's old.

The mechanical advantage I had was highly detrimental and I believe you are right in saying that...
Forum: 3D Flying!
05-16-2013, 09:54 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

I finally flew my strenghtened Katana 50 today, after doing all the repairs listed (1) to (6) above. Plane flew really well and withstood all the aerobatics I could throw at it without any problems....
Forum: 3D Flying!
05-03-2013, 10:51 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

The mods I am making to the wings of my Katana 50 are as follows:<div>(1) Add carbon fiber brace behind main spar, epoxied in, as shown in picture</div><div>(2) ditto to part of rear...
Forum: 3D Flying!
05-03-2013, 10:46 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

Here are a couple of pictures of the carbon fiber braces I have added to strengthen the wings of my Katana 50.
Forum: 3D Flying!
04-29-2013, 12:42 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

I am currently away from the plane, but I will send you some photos of the fix within about a week, together with a list of the modifications I have done. After that, I will be interested to see (a)...
Forum: 3D Flying!
04-27-2013, 04:26 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

I have been flying RC for 5 years and have 10 planes, of which four are Hangar 9 products (Twist 40, Funtana 125, Spitfire 60, and Katana 50). My favorite of these three is the Funtana 125 powered by...
Forum: 3D Flying!
04-27-2013, 04:23 AM
Replies: 159
Views: 46,243
Posted By John Stainforth

RE: Katana 50 by Hangar 9

I have been flying RC for 5 years and have 10 planes, of which four are Hangar 9 products (Twist 40, Funtana 125, Spitfire 60, and Katana 50). My favorite of these three is the Funtana 125 powered by...
Showing results 1 to 12 of 12


 
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