Old Skool Phase 6 - Page 2

Garry s · Sep 18, 2009, 08:43 PM

Very nice. Recognise that AMT set up from doing one for my Phase 5! Although the 5 is a little slimmer back there and has 1/16" plywood walls.

DrFragnasty · Sep 18, 2009, 09:38 PM

Thanks Garry et al.

Made some joiner boxes this am. 3 oz kevlar plain weave, with thread direction perpendicular to span to prevent bursting open on those massive DS circuits ;0)

In hindsight I should have been neater working the fabric to
give a clean straight edge at the root. The tip ends can be as rough as guts.

You can scroll-saw cut kevlar after it's set but it still ends up fluffy.
I'll have to apply a smear of bog afterwards then sand to make it
neater.

Chris.

DrFragnasty · Sep 18, 2009, 09:44 PM

Thought about a Ritz section Tim, but I'll try this first. The DS19 should be good too.

Another wing is an option. With the joiner box set-up multiple wings fit the same fuz.

I like the idea of a 2m wing with HN483 for slermalling.

Chris.

DrFragnasty · Sep 19, 2009, 07:50 AM

Joiner boxes cured (still need another 24 hrs though) and joiner ends trimmed.

Chris.

DR_G · Sep 19, 2009, 01:27 PM

Nice project!

I'm a big Chris Foss fan: got a Middle Phase II sloper (learned to fly with it 19 years ago and it's still going strong!), and also a Wot-4.

I always fancied a Phase 6 - Great looking model. Now you mention the all moving tailplane to reduce drag , it looks to me like a good candidate for a wingeron or pitcheron conversion? Flat ply fuselage sides...or maybe it's just a twist-wing 'Phase' I'm going through

Cheers,

DrFragnasty · Sep 20, 2009, 05:02 AM

The wide spar allows me to eliminate any shear-web.

Next-up, sanding the trench for the spars and not forgetting servo lead channels.

Chris.

It's been raining all Sunday...that's 13 ot of 15 weekends unflyable

DrFragnasty · Sep 21, 2009, 10:53 PM

What servos should I use? Pref. digitals.
13mm depth maximum.

Chris.

Hexosex · Sep 22, 2009, 10:12 AM

I've got these servos for my latest build. They have been tested on a DS plank and are awesome.

http://www.giantcod.co.uk/epower-met...-p-403797.html

Hope you can get some for a good price. Don't see much point in buying expensive servos while those bad boys are around!

Hexosex · Sep 22, 2009, 10:19 AM

Sorry, that link is for the non digi, they do the digi's for £7.50.

DrFragnasty · Oct 13, 2009, 05:00 AM

Had some spare time to move the project along a bit.

Cleaned the spray gun and sprayed the mylars, top orange, bottom black acrylic gloss thinned 40%.

The paint is drying, after which I'll wet-out the cloth on the mylars and apply it to the cores making 2 mylar/ cloth/resin foam tacos.

Then in the bag for 24hrs.

Kudos to Bill Haymaker & Phil Barnes for their vac-bagging DVD which has made this process hassle-free.

Chris.

Hexosex · Oct 13, 2009, 07:51 AM

Looking very nice indeed.

I can see you have also watched the bagging video. It looks like you have done everything by the book there! Pasty and I used the methods and got some really good results so far.

Please post some more pictures as you go, very interesting to see.

prodjx · Oct 13, 2009, 12:16 PM

DrFragnasty, when the Kevlar fray's during sanding I was taught to spritz the fray with Ca let it go off and continue sanding and repeat as necessary.

hweeler · Oct 13, 2009, 12:28 PM

Quote:

Originally Posted by DrFragnasty

Chris Foss's Phase 6 is a fave of mine and I thought with a deeper fuz and lower frontal area, vac-bagged wing with live-hinged flaps and ailerons and an all-moving tail I could reduce drag and make it go a bit faster and have better knife-edge performance.

Other mods: 2 piece wing with joiner/ joiner box and plug in mpx connectors.

e374 and 1.7m span. HT13 tail section.

Chris.

Im curious, what construction type do the original plans call out for wing joining and sheeting?

Eric

DrFragnasty · Oct 13, 2009, 05:35 PM

It was just 1/16th sheet balsa over white foam cores Eric. The wing was built in 1-piece with a fibreglass wrap dihedral brace. 1 wing hold down bolt at the trailing edge and a 3/4" dowel at the leading edge located into F2.

Thanks for the CA tip Prodjx.

The vac pump is on for 4 secs and off for 40...there's a leak somewhere ;0) Despite this the vacuum is still around 20- 22".

Chris.

DrFragnasty · Oct 13, 2009, 07:31 PM

Shots of the production line.

Sep 18, 2009, 09:38 PM	#17
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	joiner boxes Thanks Garry et al. Made some joiner boxes this am. 3 oz kevlar plain weave, with thread direction perpendicular to span to prevent bursting open on those massive DS circuits ;0) In hindsight I should have been neater working the fabric to give a clean straight edge at the root. The tip ends can be as rough as guts. You can scroll-saw cut kevlar after it's set but it still ends up fluffy. I'll have to apply a smear of bog afterwards then sand to make it neater. Chris. Attached Thumbnails 12 weekends out of 14 have been unflyable. Including this one ;0) Spent 1 hr making joiner boxes instead. 126.5 KB · Views: 77 2 wraps of gladbake held with masking tape at each end. 6hr west system resin. 119.4 KB · Views: 64 kevlar wrap stops short of middle and ends by about an inch. I had to weight it down top/bottom after the wrapping to stop the fabric from balloning away from the joiner. 93.2 KB · Views: 75

Sep 19, 2009, 07:50 AM	#19
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	joiner boxes done Joiner boxes cured (still need another 24 hrs though) and joiner ends trimmed. Chris. Attached Thumbnails Hint: cut carbon joiners with a hacksaw; don't use a band saw, the blade wears really quickly. 103.7 KB · Views: 74 2 wraps of baking paper was just right. In hindisght I'll wax the joiner as well; a little resin squeezed between the paper and made it difficult to remove. 62.2 KB · Views: 66

Sep 20, 2009, 05:02 AM	#21
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	WIP, cloth cut for spars The wide spar allows me to eliminate any shear-web. Next-up, sanding the trench for the spars and not forgetting servo lead channels. Chris. It's been raining all Sunday...that's 13 ot of 15 weekends unflyable Attached Thumbnails fibral-bonded unidirectional carbon. 175.1 KB · Views: 64 21.5mm foam depth 97.0 KB · Views: 41 2 plies top, 2 plies under sited on the 25% chord line, the layup on top of that will use 45 bias cloth to reduce torsional twisting. The forward spar allows lots of room for servo install. 156.6 KB · Views: 83 Should give a comfortable depth to be filled with med-soft 1mm balsa and spackle. 89.4 KB · Views: 77 21.5-17.3 = 2.1mm top and 2.1 mm bottom to fill. 101.1 KB · Views: 56

Oct 13, 2009, 05:00 AM	#25
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	Wip Had some spare time to move the project along a bit. Cleaned the spray gun and sprayed the mylars, top orange, bottom black acrylic gloss thinned 40%. The paint is drying, after which I'll wet-out the cloth on the mylars and apply it to the cores making 2 mylar/ cloth/resin foam tacos. Then in the bag for 24hrs. Kudos to Bill Haymaker & Phil Barnes for their vac-bagging DVD which has made this process hassle-free. Chris. Attached Thumbnails no fancy pants valve here, just good old blu-tac. 28.0 KB · Views: 57 black bottoms/ orange tops (although it looks red here) 2x 3/4 oz cloth on a bias top and bottom. 76.5 KB · Views: 56 No fancy pants clips here, just electrical conduit; the outer is a crescent cross-section to trap the bag and inner conduit. 67.1 KB · Views: 56 Phil Barnes inspired leading edge fabric; 1.4oz kevalr on a bias tacked on with 3M77 65.8 KB · Views: 65 The 45 degree bias lets the fabric adhere to compund curves like this. 60.5 KB · Views: 67

Oct 13, 2009, 05:35 PM	#29
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	Original Phase 6 wing set-up It was just 1/16th sheet balsa over white foam cores Eric. The wing was built in 1-piece with a fibreglass wrap dihedral brace. 1 wing hold down bolt at the trailing edge and a 3/4" dowel at the leading edge located into F2. Thanks for the CA tip Prodjx. The vac pump is on for 4 secs and off for 40...there's a leak somewhere ;0) Despite this the vacuum is still around 20- 22". Chris. Last edited by DrFragnasty; Oct 13, 2009 at 08:19 PM. Reason: typodread

Sep 18, 2009, 08:43 PM	#16
Garry s A new day, a new gadget Join Date: May 2006 Location: Brighton, UK Posts: 365	Very nice. Recognise that AMT set up from doing one for my Phase 5! Although the 5 is a little slimmer back there and has 1/16" plywood walls.

Sep 18, 2009, 09:44 PM	#18
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	Thought about a Ritz section Tim, but I'll try this first. The DS19 should be good too. Another wing is an option. With the joiner box set-up multiple wings fit the same fuz. I like the idea of a 2m wing with HN483 for slermalling. Chris.

Sep 19, 2009, 01:27 PM	#20
DR_G Constantly Amazed Join Date: Aug 2006 Posts: 571	Nice project! I'm a big Chris Foss fan: got a Middle Phase II sloper (learned to fly with it 19 years ago and it's still going strong!), and also a Wot-4. I always fancied a Phase 6 - Great looking model. Now you mention the all moving tailplane to reduce drag , it looks to me like a good candidate for a wingeron or pitcheron conversion? Flat ply fuselage sides...or maybe it's just a twist-wing 'Phase' I'm going through Cheers,

Sep 21, 2009, 10:53 PM	#22
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	What servos should I use? Pref. digitals. 13mm depth maximum. Chris.

Sep 22, 2009, 10:12 AM	#23
Hexosex Byte my shiny metal @ss Join Date: Oct 2006 Location: Cornwall, UK Posts: 616	I've got these servos for my latest build. They have been tested on a DS plank and are awesome. http://www.giantcod.co.uk/epower-met...-p-403797.html Hope you can get some for a good price. Don't see much point in buying expensive servos while those bad boys are around!

Sep 22, 2009, 10:19 AM	#24
Hexosex Byte my shiny metal @ss Join Date: Oct 2006 Location: Cornwall, UK Posts: 616	Sorry, that link is for the non digi, they do the digi's for £7.50.

Oct 13, 2009, 07:51 AM	#26
Hexosex Byte my shiny metal @ss Join Date: Oct 2006 Location: Cornwall, UK Posts: 616	Looking very nice indeed. I can see you have also watched the bagging video. It looks like you have done everything by the book there! Pasty and I used the methods and got some really good results so far. Please post some more pictures as you go, very interesting to see.

Oct 13, 2009, 12:16 PM	#27
prodjx Registered User Join Date: Jan 2007 Posts: 1,346	DrFragnasty, when the Kevlar fray's during sanding I was taught to spritz the fray with Ca let it go off and continue sanding and repeat as necessary.

Oct 13, 2009, 07:31 PM	#30
DrFragnasty Double Coat TimTams Join Date: Mar 2004 Location: Launceston Tasmania Posts: 608	Wip Shots of the production line. Attached Thumbnails Taco served on a bed of paper towels. 79.6 KB · Views: 64 Alum ballast bars is another tip 'o the hat to Phil Barnes. 121.1 KB · Views: 60 Home made pump; freezer engine, ACP vac switch, car vac pump dial no reservoir, aquarium piping. 94.1 KB · Views: 46

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