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Author Topic: Boston Found -Build-  (Read 1577 times)
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scigs30
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« on: July 21, 2009, 11:59:48 PM »

I decided to build a Boston Found that my Uncle designed back in the early 80's. This is a great flying model and a simple build. Some basic supplies for building, good quality building board. Straight pins, ruler, white glue, sharp razors and wax paper. I still like the old push pin method of building, I know there are magnetic boards out there. I first build the first side with hard 1/16 sq balsa. I add all the gussets and sheeting now so everything stays nice and straight. I use the ruler as a guide to make sure my longerons are nice and straight. I also soaked the front longeron in 50/50 ammonia/water then bent if around a form. This prevents the wood from breaking and keeps a nice smooth curve. When this side is all dry, I will place wax paper directly over the first side and begin the second side. I have been doing it this way for years and always come out with a straight fuselage.
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Boston Found -Build-
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thymekiller
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« Reply #1 on: July 22, 2009, 06:13:11 AM »

I have been meaning to try the ammonia/water thing. Is windex alright? Any perfered brand?
Nice looking plane, will be following this build.

thymekiller
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scigs30
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« Reply #2 on: July 22, 2009, 08:22:13 AM »

I have never tried Windex, but any cheap brand of Ammonia works just fine.
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scigs30
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« Reply #3 on: August 06, 2009, 12:16:18 AM »

I built my share of Bostonians when I was younger. These builds are easy, fast and fly well, I am not too crazy about chasing this down. I've been building keel and former kits, so it was a nice break to do a box plane. I really like boxing up a model. I built the second side directly over the first, with wax paper separating them. I just Eye the box and check the squareness with a square. One reason I like using Elmers Glue is because it dries slow enough for me to make adjustments so my box is square.
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Re: Boston Found -Build-
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scigs30
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« Reply #4 on: August 08, 2009, 12:53:52 AM »

I have the fuselage built, just have to finish off with some final sanding then off to covering. The wing and tail surfaces are drying and need to be sanded.
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Re: Boston Found -Build-
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thymekiller
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« Reply #5 on: August 08, 2009, 09:43:06 AM »

LOVE THEM BONES !!!!!!!

I wish we could build planes that don't need covering to fly. I have got to try clear mylar.

Thanks for sharing those shots. My favs are the first one and the last one, but they are all great. Looks to be sturdy. There is a lot of "fitment" in the gussets and such. It would take me 6 weeks to make all those long joints match as well as yours. I still couldn't get that overall finished look.

What sand paper do you use for final sanding? I bet you have a big assortment of sanding and filling stuff.

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scigs30
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« Reply #6 on: August 08, 2009, 11:07:23 AM »

I just cut the parts out from the plan and normally they fit without must adjustments. For sandpaper I use 180 for shaping, 320 for everything else and 400 final. I use Sandblaster sandpaper from 3M.
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scigs30
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« Reply #7 on: August 11, 2009, 11:54:42 PM »

I have everything sanded and ready for the tissue. I will pre-shrink the tissue first. So far she is still under 14 grams.
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Re: Boston Found -Build-
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scigs30
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« Reply #8 on: August 14, 2009, 08:40:40 AM »

Here are some pictures of me covering the Found. I first preshrink the tissue and apply to model with Elmers White Glue and water. I pin all tail surfaces to board to prevent warps. I brushed on 2 coats of Dope and final weight is 14 grams.
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Re: Boston Found -Build-
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scigs30
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« Reply #9 on: August 14, 2009, 08:42:36 AM »

Some more pictures.
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Re: Boston Found -Build-
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scigs30
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« Reply #10 on: August 14, 2009, 08:43:57 AM »

And some more
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albackstrom
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« Reply #11 on: August 14, 2009, 10:26:58 AM »

That is a very good looking model and it has got to fly well. Enjoy it and watch out for it outdoors, a real fly away threat.
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Al Backstrom USA - Will be missed by all that knew him.
thymekiller
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« Reply #12 on: August 14, 2009, 09:58:37 PM »

Once again, I am in awe. Your work is great and FAST !!!!

thymekiller
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craig h
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« Reply #13 on: August 15, 2009, 09:39:06 AM »

 Really a nice job done....what size prop?
We hope to see it fly ...are perhaps some pics.

Craig h
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scigs30
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« Reply #14 on: August 15, 2009, 10:24:47 AM »

It is a 6 inch prop from Peck.
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flash52
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« Reply #15 on: August 15, 2009, 11:41:16 AM »

Museum quality. How much rubber are you going to use?
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scigs30
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« Reply #16 on: August 15, 2009, 12:32:32 PM »

3/32 or 1/18.
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« Reply #17 on: August 22, 2009, 07:07:07 PM »

Just looking at your Dauntless build on SFA ... I was going to comment and then realised I hadn't yet commented on your superb Bostonian ... you build quicker than I can comment!
I will be interested to hear what sort of times you get ... indoor particularly.
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scigs30
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« Reply #18 on: August 23, 2009, 10:19:17 PM »

I hope to be flying soon, but I blew a head gasket in my truck so building and flying will slow down. I don't fly with a club so indoors will be impossible. When I do go flying I will post pictures.
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EdO
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« Reply #19 on: September 24, 2018, 08:03:22 PM »

Anyone know where I can get the plan for this little gem? Photos are shown in reply # 10, dated August 14, 2009. Not sure from the text if this is a Mooney design or not.
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ILM Tarheel
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« Reply #20 on: September 24, 2018, 08:53:32 PM »

EdO, I have a copy of the Boston Found by Walt Mooney (dated 1981). I will be happy to mail you the plan if you send me your mailing address. Use the "Personal Message" function of this forum and your address will not be public. If you are not familiar with PM use the bubble located just to the right of the email envelope icon in the lower left corner of this reply.

Jimmy J
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Indoorflyer
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« Reply #21 on: September 24, 2018, 09:04:54 PM »

The plan is in the Hippocket Plans Gallery.  It is in the Walt Mooney category.

http://www.hippocketaeronautics.com/hpa_plans/details.php?image_id=968

Volare Products has a real nice peanut scale Found Centennial "short kit" that is much more scale-like; doesn't  have the cranked up outer wing panels like many Found model plans have (inexplicably).

« Last Edit: September 24, 2018, 09:16:52 PM by Indoorflyer » Logged

Make the same mistake on both sides; nobody will notice...
scigs30
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« Reply #22 on: September 24, 2018, 11:14:39 PM »

Here is the plan I built it from.
https://www.rcgroups.com/forums/showthread.php?1091078-Bostonian-Found/page2
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Indoorflyer
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« Reply #23 on: September 25, 2018, 12:28:07 AM »

Which came first, the Mooney designed Found or your Uncle's??  Sorry for assuming they were somehow related...
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scigs30
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« Reply #24 on: September 25, 2018, 03:46:22 PM »

From what I remember around the same time……….
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