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Building Tips and technical articles. => Building techniques => Topic started by: Chris Fretz on March 16, 2017, 05:13:37 PM

Title: Acceptable Clearance?
Post by: Chris Fretz on March 16, 2017, 05:13:37 PM
Would something like this be acceptable to do to the flaps for clearance of the pushrod to the elevators?
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 16, 2017, 05:14:26 PM
(https://uploads.tapatalk-cdn.com/20170316/1469461a587cc4fbee7e570cfa89e8eb.jpg)
Title: Re: Acceptable Clearance?
Post by: Tim Wescott on March 16, 2017, 06:04:56 PM
Looks like some of mine.  The nuts will be hard to reach, but other than that it looks fine.

As long as it moves freely and does the job, it's got enough clearance.
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 16, 2017, 06:12:08 PM
Looks like some of mine.  The nuts will be hard to reach, but other than that it looks fine.

As long as it moves freely and does the job, it's got enough clearance.

Ooops I ment the way I cut the flaps all goofy to clear the pushrod to the elevators.
Title: Re: Acceptable Clearance?
Post by: Mike Haverly on March 16, 2017, 10:19:07 PM
Won't hurt a thing.  Like the man said, as long it clears it will work.  Worse yet is when it rubs and makes things sticky, no good.
Title: Re: Acceptable Clearance?
Post by: RknRusty on March 16, 2017, 11:03:19 PM
You're worried about the rod and link hitting the flap at full throw, right? It should be fine, but if you think it needs more clearance, it won't have to be enough to ugly it up. What plane is this?
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 17, 2017, 02:55:27 AM
Won't hurt a thing.  Like the man said, as long it clears it will work.  Worse yet is when it rubs and makes things sticky, no good.

Sound advice! Thanks!
You're worried about the rod and link hitting the flap at full throw, right? It should be fine, but if you think it needs more clearance, it won't have to be enough to ugly it up. What plane is this?
Hi Rusty,  it was hitting it so I cut clearance in the flap and copied the cut to the other flap. I just thought it looked goofy. I bought a Tanager from a fellow modeler last winter. Then at Brodak's last year someone was selling a Tanager for a heck of a price and I couldn't pass it up. So I started building the second Tanager. My back up just in case ;D
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 17, 2017, 02:58:55 AM
Wile I'm at it I should ask if this one is ok before I get some good weather to paint it. Will this notch cause some trimming problems since the other side has more flap area now?(https://uploads.tapatalk-cdn.com/20170317/b2529d4b82133d83bbeb58b170ffcb1b.jpg)
Title: Re: Acceptable Clearance?
Post by: john e. holliday on March 17, 2017, 12:56:11 PM
I have notched flaps like that for years.  In fact I have even cut the flaps to look even and put a peice of scrap between the flap and fuselage on both sides.
Title: Re: Acceptable Clearance?
Post by: RknRusty on March 17, 2017, 02:43:47 PM
My Twister outboard flap is notched just like that. I doubt if that notch affects anything that flyers at our level can detect.
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 17, 2017, 06:34:35 PM
I have notched flaps like that for years.  In fact I have even cut the flaps to look even and put a peice of scrap between the flap and fuselage on both sides.
Thanks for the reply Doc! I hope you're feeling better!
My Twister outboard flap is notched just like that. I doubt if that notch affects anything that flyers at our level can detect.
That's what I was hoping to hear!
Title: Re: Acceptable Clearance?
Post by: Carl Cisneros on March 17, 2017, 10:56:15 PM
Chris

Look at teh flaps closely on my Excalibur 109 that I flew at Brodaks last year.

Notice the notching I got onthem.

Carl
Title: Re: Acceptable Clearance?
Post by: Chris Fretz on March 18, 2017, 01:57:57 AM
Chris

Look at teh flaps closely on my Excalibur 109 that I flew at Brodaks last year.

Notice the notching I got onthem.

Carl

Is that a Tomahawk hiding in the back?
Title: Re: Acceptable Clearance?
Post by: Carl Cisneros on March 18, 2017, 08:20:17 PM
No, the smaller one is  a Sig Akromaster and the other is a Buster.

I am planning and attending the whole week this time.

Carl