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Author Topic: new fun event  (Read 2967 times)
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monocoupe110
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« Reply #25 on: November 27, 2015, 12:09:39 AM »

Any of you guys heard of a 1/2a model called an "X-70"? It's an old model airplane news plan that I have but I cannot find a date for it. It's an oddball, kind of like the Stan Hill Vector Director with the wing on the fuselage and the engine on a pylon. It's one of those double plans with a control line model plan on the reverse side. It sure looks like a 60's vintage plan. Anyone know of a listing for older MAN free flight plans? I can't even find a picture of it on the web.
It was designed by W. Anderson and W. Young.

Cheers,
Nigel
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Steve J.
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« Reply #26 on: November 27, 2015, 10:54:07 AM »

Nigel, AMA sells the plan. What is the name of the CL design? Maybe you can search for that name.
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monocoupe110
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« Reply #27 on: November 27, 2015, 11:40:53 AM »

Nigel, AMA sells the plan. What is the name of the CL design? Maybe you can search for that name.
Hi Steve,
Yes I did see that AMA sells the plan but with no date shown......it never occured to me to search the control line plan! Good idea!  Grin

Cheers,
Nigel
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Brian J Y
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« Reply #28 on: November 27, 2015, 11:58:52 AM »

Nigel,

Try MAN April 1963, I don't have the mag to check though.

Brian
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monocoupe110
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« Reply #29 on: November 27, 2015, 12:08:31 PM »

Nigel,

Try MAN April 1963, I don't have the mag to check though.

Brian

Thanks for that, Brian! Yes, indeed that's the issue! Now, anybody got a copy they can scan the article? If not, there are many copies on Ebay.....

Cheers,
Nigel  Smiley
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cvasecuk
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« Reply #30 on: November 28, 2015, 01:05:22 PM »

Glidermaster, DH says that he can remember you turning up at Chobham and being pleased that at least one other person had built one. He also remembers your scores!!! However, he recommends the 1/2A Train - better and prettier.
Ron
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« Reply #31 on: November 28, 2015, 01:41:44 PM »

Ron - say 'Hi' for me next time you see/talk with DH, please.

Jim Moseley 
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Soc
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« Reply #32 on: December 02, 2015, 01:15:20 AM »

Nigel,
I have a copy of that issue.
I can scan (in a day or two) and post here or PM to you.

Sean
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monocoupe110
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« Reply #33 on: December 02, 2015, 01:47:14 AM »

Nigel,
I have a copy of that issue.
I can scan (in a day or two) and post here or PM to you.

Sean


Thank you very much, Sean! Smiley

Cheers,
Nigel
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Soc
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« Reply #34 on: December 02, 2015, 10:26:22 PM »

Herewith, the X70 article.

Not a lot about the structure as such, or trimming.

Tentative suggestion :
A trim tab or gurney flap on the engine pylon might be useful with this layout.
I would expect the effect to be similar to side thrust adjustments.
Probably need to keep prop wash swirl in mind and place deflection high on the left / low on the right.

Attached files Thumbnail(s):
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« Last Edit: December 02, 2015, 10:42:46 PM by Soc » Logged
monocoupe110
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« Reply #35 on: December 02, 2015, 10:38:48 PM »

Thanks for that, Sean! Bedtime reading!  Grin

Cheers,
Nigel
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Soc
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« Reply #36 on: December 03, 2015, 05:30:53 AM »

Nigel
I've just realised that there is no scale on the drawing and no useful dimemsions there or in the article.
Perhaps you can supply a key dimension that would make it possible to scale the drawing up correctly.
My guess is 11/2" rib bay (one and a half inch), but that would make it smaller than the average US style half A at ~42" span
Sean
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monocoupe110
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« Reply #37 on: December 03, 2015, 08:18:33 AM »

Sean,
I can do better than that. I will scan the plan and upload it.

Cheers,
Nigel
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glidermaster
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« Reply #38 on: December 03, 2015, 04:34:58 PM »

The X-70 has a certain Mathis-like quality.

JB
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monocoupe110
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« Reply #39 on: December 03, 2015, 07:42:52 PM »

I have uploaded the full size X-70 plan here on the site under outdoor power. Apparently it needs to be reviewed before it can be seen and downloaded.

Cheers,
Nigel
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monocoupe110
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« Reply #40 on: December 08, 2015, 02:47:42 PM »

The X-70 plan is now available for download: http://www.hippocketaeronautics.com/hpa_plans/categories.php?cat_id=23&page=10

Cheers,
Nigel
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« Reply #41 on: December 09, 2015, 08:59:02 AM »

For Dixielander fans, an E-Dixielander was designed and flown in the 60's. I believe the wing was 4 bays larger and was powered by an Eta .29!!Would make a nice, easy to build 1/2a.
Denny
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glidermaster
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« Reply #42 on: December 09, 2015, 09:49:28 PM »

I guess a little Dixielander could be called a Pixielander........
Maybe......
JB
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Scottl0413
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« Reply #43 on: December 12, 2015, 09:23:50 PM »

Does anyone know if the Sundancer 330 meets the cut off dates?Huh

thks, Scott
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gossie
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« Reply #44 on: January 09, 2016, 03:31:44 AM »

SLOWORM 1/2A was a pretty easy quick build and seems to have come out okay.  Thanks again JB for the plan.

It's not quite finished. Need to fuel proof it, and may run 1/8th black tissue strip where the red meets the orange on the wing and stab. spars.
It's covered with Esaki Lite and a couple of coats of very thin dope.  Wing warps were built in and have stayed there.

 Deviation from Dave Hippersons plan was to add a 1/16th wire leg prop. saver, and gussets at the dihedral joints.

I screwed the TeeDee.049 with one screw and nut onto the bearers, and Seelig mini timer into it and CG is right on as per the plan......7/8th in. in front of TE.

It weighs as is @ 172 grams, a fraction over 6 OZ, so I guess that's not too bad as I just used balsa that I had.   Nothing special.

Calmed off here a while back in the afternoon so took a wander to the close by park and gave it a glide.
It looked good, nice and floaty, and gliding to the right with the built in tail tilt.

Did not build a metal tank into it as per the plan, as I fancy hanging a pen bladder onto the prop. leg, and either squeezing the fuel off for shut down, or using a T piece after the bladder with one tube for feed, and other under the Seelig front arm to hold it off until it lets go to flood off the engine with the tube into the venturi.

Only trick here is to find some pen bladders in OZ.    Happy to send real money for a few if anybody has any not being used.

Couple of pics I just took.
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ddock
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« Reply #45 on: January 09, 2016, 07:55:57 AM »

Nice!! 6oz is pretty good 'out the door'. Little Red Caps...Bladders...Rockler Woodworking...35  for $7.99us...can't beat em
DDock
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monocoupe110
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« Reply #46 on: January 09, 2016, 07:59:49 AM »

That was fast Gossie!

Ditto on the Red Caps........

Cheers,
Nigel
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gossie
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« Reply #47 on: January 09, 2016, 04:28:40 PM »

Little Red Caps.  Thanks men.   Have heard of them but not seen or used them.

Just checked Rockler and they can send to Australia, so may have to do that.

Rockler shows stores in U.S. mainland, and was hoping maybe in Honolulu as we will be there in April but no mention of there.
I'm in no panic so will check hardware stores in Honolulu then if no dice will order direct from them.

Thanks again.

Edit. P.S.  Just did a search here and I think local hardware stores may have them.   Will take a look on Wednesday.
« Last Edit: January 09, 2016, 04:52:34 PM by gossie » Logged
glidermaster
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« Reply #48 on: January 09, 2016, 06:20:09 PM »

Very nicely done Howard.

JB
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