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Cox Engine of The Month
Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
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Kim- Top Poster
Posts : 7482
Join date : 2011-09-06
Location : South East Missouri
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
A good number of Walt's Scientific plans and photos show an OK Cub, either the Model "A" or "B" drawn installed or in a photo in the plans or box. I think there may be one or more showing the Wen Mac plumbed for the separate tank. That was the nice thing about Walt's designs, he made sure they could accommodate just about any engine in that power class. Even an A.C. Gilbert .074 Thunderhead would work with the appropriate modifications and be period correct.@ticomareado wrote:The general layout of this model is just begging for a reconfiguration to a Beechcraft Bonanza. With a good specimen of a Wen Mac MK II or Mk III for power.
Thanks Kim for providing a photo of the plan. I have found that by simply reprinting the pdf or jpeg using a tiling program to 4 times will enlarge the true 1/4 scale top view to proper size. I never built the Zipper, but always liked the looks of it when browsing hobby stores and Scientific ads in the 1960's and 1970's.@Kim wrote:AGREED on both counts!!!!!!!!!!!!!!!!! I got the plan sheet for those that might want a copy !!!!!!!!!!!! Zippers Rule !!!!!!!!!!
I was sad to hear of Walt's passing, but time has allowed many to pass on that I grew up with their plans, kits and magazine articles.
GallopingGhostler- Diamond Member
- Posts : 2581
Join date : 2013-07-14
Age : 67
Location : Clovis, Nuevo México
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
While Walt did keep the average modeller in mind in terms of providing kits for engines that most had, truth be told the OK flew the planes better.Having the tank on the cg was key and building them light. Putting a Cox engine on them was too heavy and placed the engine out too far. That being said, I saw a Fox .049 in a Golden Hawk fly extremely well.
Ken Cook- Top Poster
- Posts : 4300
Join date : 2012-03-27
Location : pennsylvania
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
Looking Good Kim , you did a darn good job on the LG and coweling , That gear should hold up Nicely !


getback- Top Poster
Posts : 7713
Join date : 2013-01-18
Age : 63
Location : julian , NC
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
She's lookin' pretty dadgum good, Kim!!!!
Tee Bee- Platinum Member
Posts : 739
Join date : 2011-08-25
Location : Angleton, TX
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
@Tee Bee wrote:She's lookin' pretty dadgum good, Kim!!!!
Thank you Troy! Gonna have me some Scientific Stuff at this year's S.M.A.L.L. !!!!
Kim- Top Poster
Posts : 7482
Join date : 2011-09-06
Location : South East Missouri
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
Bump!
Kim,
I'm dying to see how this is turning out!
(Thanks to RSV Bob who reminded me of it this am)
Kim,
I'm dying to see how this is turning out!
(Thanks to RSV Bob who reminded me of it this am)
944_Jim- Platinum Member
Posts : 1088
Join date : 2017-02-09
Age : 56
Location : NE MS
Re: Scientific "Zipper" Build...The Zipper Gets Some Thursday Attention
I thought it looked like a tiny Taurus RC Pattern ship. As a little kid the Scientific ads were ones I could stare at for a long time!
stuntflyr- Gold Member
- Posts : 261
Join date : 2012-01-18
Age : 62
Location : Tucson, Arizona
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