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Re: HurricaneMkII
Reply #260 - Dec 20^th, 2016 at 11:54am

al wrote on Dec 20^th, 2016 at 9:36am:

Fingers wrote on Dec 18^th, 2016 at 1:46pm:

OK, ribs for the center section are ready........#3 is going to be doubled to add strength for the landing gear - doubler is that little sub rib....
think I might drill everything and use the wing jig...

Those spars are a tad in the short side.

yup, good catch...

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« Last Edit: Dec 20^th, 2016 at 8:00pm by Fingers »

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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,088 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: HurricaneMkII Reply #261 - Dec 20^th, 2016 at 8:02pm Tried to fit everything on the wing jig - pretty awkward so I'll build on the board. Roughed up the center, Chinese Fire Drill. This will be an exercise in whaddoIgluefirst?
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Re: HurricaneMkII
Reply #262 - Dec 22^nd, 2016 at 9:04pm

OK, now I'm committed, or at least should be committed. Time to Build

Center ribs glued in place. Roy has a lot of spars and sub spars, some on top, some underneath, so each rib will have to be looked at carefully to decide what/when. Sad

Center rib (1), and 2 ribs on either side don't have flaps, so they are stock. From here on, each set of ribs has to have the flap drawn on it and partially cut so the piece can be removed.
Because they are split flaps, they hang down under the wing without being seen on top, but the flaps have to be built in so the rib is complete for the top sheeting to be done Huh Sign

, then the piece removed. Plus, Roy designed the flaps about 30% too large in area so I have to redo his drawings on the plans....rib by rib Wall Bash

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Re: HurricaneMkII
Reply #263 - Dec 26^th, 2016 at 7:27pm

I'm dreaming of a Hurri

cane

Just like the one I'd like to fly.........
It is made all of wood
From plans I don't read good
Maybe someday will reach the skyyyyyyyyyyy

Center section partially assembled, so I stuck the fuse on it so I could dream a bit......Ribs 1, 2 and 3 (both sides) are on now; if I put 2 #4 ribs on either side (widening the span by about 3 inches, I could maybe come up with a way to get a 3 piece wing.............mmmmmmmmmmmmmm Undecided

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yorcram Club Member Offline Forum User LastOn: Apr 23^rd, 2024 Join: Mar 12^th, 2015 Posts: 279 Reputation: 0 Sackville,NS Gender: Awards: 1 Mood:	Re: HurricaneMkII Reply #264 - Dec 27^th, 2016 at 10:17am Looking good.
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Re: HurricaneMkII
Reply #265 - Jan 2^nd, 2017 at 3:55pm

Couple of gear mounts cut out. Plans call for 3/8 x 1/2 maple rails, but I figured with my landings I'd split a rail eventually. 1/4 aircraft ply laminated with 1/8 aircraft ply.

I also left the outer end of the ply in one piece Huh Sign

might be a bit stronger. I still have to cut this inner end to fit the ribs 4 and 5, and the leading edge. One of these you need the ribs to cut the rails, but you need the rails to put the ribs in... Embarrassed

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« Last Edit: Jan 9^th, 2017 at 1:29pm by Fingers »

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Re: HurricaneMkII
Reply #266 - Jan 3^rd, 2017 at 7:50pm

Ribs 1 - 4 both sides in, about all I can do from this side. No, the front strip is NOT glued to the ribs and YES I know some ribs are bowed Angry

Lie ply does that sort of thing!!

I put one of two wing tubes I have in for a lookie. I figure, never having done tubes before, that the tube should likely go out to about rib 7 in the panels. If I use the 1 1/2" tube that is shown in the wing, at rib 7 it is only 3/16" from the bottom of the wing. If I use the smaller tube in the background, 1", then the bottom of the tube out at rib 7 is 3/4" from the bottom of the wing Huh Sign

Don't know if the 1" tube is large enough.... Huh

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Re: HurricaneMkII
Reply #267 - Jan 3^rd, 2017 at 9:01pm

interesting question
i am assuming one tube through boith wings?
1. the 3/16 rib dimn is insuffiecient but the wing skin will make up for the insufficienc...but not in a heavy landing on one truck
2. I like the 1 inch...but you must have a sleeve tube that is
a) a close fit in the rib hole; and
b) the 1 inch tube must fit the sleeve with a sliding close fit
c) if you havent contemplated the tube then wrap one from thin card and use glue with saran wrap etc..
3. rib 7 sounds good. assuming the rib spacing is what i think it is( about 2 inches).

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« Last Edit: Jan 3^rd, 2017 at 9:01pm by waverider »

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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,088 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: HurricaneMkII Reply #268 - Jan 9^th, 2017 at 1:32pm Center section glued up - everything I can get to from the top except for the gear mounts and the sheeting. I'll take a good look at things, and if I can get the gear mounts in from below I'll sheet the top to make it more rigid. Then I can fit it to the fuse to make the fairings.
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Re: HurricaneMkII
Reply #269 - Jan 9^th, 2017 at 1:38pm

Bottom rear of the fuse sheeted. Not happy Angry

. The 1/8 balsa sheeting was as hard as plywood, and was impervious to ammonia! Soaked a piece over night and it still wouldn't bend. So I had to resort to planking, and I never was any good at planking. Wall Bash

Fortunately the balsa is/was 1/8 so there is lots to sand off! Undecided

By the time I get it smooth I'll have 1/16 sheet and about 1 1/2 pound off the rear.... Hit Palm

At least it's almost to the point where I can fit the wing center to do fairings.... Im Happy

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Steve Mosher Club Member Offline LastOn: Apr 3^rd, 2024 Join: Mar 24^th, 2010 Posts: 461 Reputation: 0 Gender: Awards: 4	Re: HurricaneMkII Reply #270 - Jan 9^th, 2017 at 10:31pm Looking good, Sandy. I know what you mean about planking. I've always struggled with it.
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Ben Lann Aerobatic Pilot Offline Forum User LastOn: Aug 11^th, 2023 Join: Aug 15^th, 2011 Posts: 275 Reputation: 1 New Glasgow, NS Gender: Zodiac sign: Mood:	Re: HurricaneMkII Reply #271 - Jan 10^th, 2017 at 9:13am Making progress. I like it.
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Re: HurricaneMkII
Reply #272 - Jan 12^th, 2017 at 11:49am

Ben Lann wrote on Jan 10^th, 2017 at 9:13am:

Making progress. I like it.

Thanks Ben. Slow but steady. I knew the front of the doghouse was wrong on Roy's drawings, much too wide. I emailed a fellow at Airframe Rebuilders in the UK. Asked him about the front and if he could get someone to measure it sometime. He told me they didn't have a Hurri in the shop right now, but did send this.....I should be able to plot out the correct width from here.......

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« Last Edit: Jan 12^th, 2017 at 11:51am by Fingers »

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Ben Lann Aerobatic Pilot Offline Forum User LastOn: Aug 11^th, 2023 Join: Aug 15^th, 2011 Posts: 275 Reputation: 1 New Glasgow, NS Gender: Zodiac sign: Mood:	Re: HurricaneMkII Reply #273 - Jan 12^th, 2017 at 12:48pm You'll need to make your own plans by the end of the build. Looks like you have made every effort to be as scale as possible.
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Re: HurricaneMkII
Reply #274 - Jan 12^th, 2017 at 2:19pm

Spoke to Roy about it, and in all fairness when he did his plans in '87 (re-drawn from Al Bently plans) no one had access to the real deal to check stuff. Unlikely he even saw a full size Hurricane, and the internet wasn't around to Google stuff!
Dog house is off, flaps are quite wrong, and wing fairings are much too large (look like they just copied the Spitfire fairings). When I get the one flight on it I'd like it to at least look right... Cheesy

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Steve Mosher Club Member Offline LastOn: Apr 3^rd, 2024 Join: Mar 24^th, 2010 Posts: 461 Reputation: 0 Gender: Awards: 4	Re: HurricaneMkII Reply #275 - Jan 12^th, 2017 at 3:39pm Fingers wrote on Jan 12^th, 2017 at 2:19pm: When I get the one flight on it I'd like it to at least look right... My approach exactly - with the way I fly, anything past the first flight is a bonus!
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Re: HurricaneMkII
Reply #276 - Jan 12^th, 2017 at 4:06pm

Ahhhh bless Google - you know there's an answer out there, even if you can't remember the question Steve...
Found this answer to the 3 piece wing dilemma.
I felt/feel the one tube, behind the thickest part of the wing, is fraught with problems. "Fraught" had to look that word up, according to Wikikikikipediatrican "Will jump up and bite you in the ass!!" Shocked

Guy in MAN used this on a 30% Skyraider and it works..think I can build this in...

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Re: HurricaneMkII
Reply #277 - Jan 17^th, 2017 at 1:31pm

Here is one of the modified gear mounts in place. It's keyed to the innermost rib, and to the end rib (that's rib 5, on the left, if you're keeping track). The inner ends of the legs will be trimmed a bit, and of course, there will be lots of triangle stock and ply strengtheners put in. We are considering MY landings here. Angry

The plans seem to show ply gussets top-to-bottom along each gear leg, between the ribs, hard to explain might do a cardboard mock up to look at...
This all looks right, have to think on it a bit before I mix epoxy... Huh

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Yak Man Club Member Galactic Twinkie Jet Pilot Extraordinaire Offline Forum User LastOn: Apr 21^st, 2024 Join: Mar 23^rd, 2010 Posts: 1,000 Reputation: 0 Gender: Zodiac sign: Awards: 5 Mood:	Re: HurricaneMkII Reply #278 - Jan 23^rd, 2017 at 6:43am This is one incredible build you got going here Sandy. Great work, huge attention to detail. You got my vote for pilot's choose..
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Fingers YaBB Moderator I still got all five! Offline Forum User LastOn: Yesterday Join: Mar 22^nd, 2010 Posts: 3,088 Reputation: 0 Dartmouth Gender: Zodiac sign: Awards: 3 Mood:	Re: HurricaneMkII Reply #279 - Jan 23^rd, 2017 at 8:22am Thank you kind sir! Just have to hope it doesn't weigh 35 pounds when done..
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