Twin Lizzie (oz210)
About this Plan
Twin Lizzie (Twin Lizzy). 1/2A gas free flight by Keith Laumer originally from 1959 MAN. This is a modern redrawn plan by Gene Rock.
Quote: "For 1/2A engines - and the little Pee Wee is just fine - a joyful free flight design for sport flying. Has character all its own - Disney character, maybe?
It's a perfect day for flying, the runway is smooth and the air is calm. Engine humming, Twin Lizzie starts her take-off run; the tail skid clears the ground, and with a tentative bounce, she's airborne, climbing steadily in a wide turn that brings her back directly overhead with 50 feet of altitude. The sun glints off her side, as she swings past to make another circle, climbing 100 feet before the engine cuts. In the glide, the ship drifts back toward the runway rocking slightly in an occasional gust, to float in to a perfect landing, ready to go again.
That's the way Twin Lizzie flies, and construction is easy, with a simple box fuselage, sheet balsa tail surfaces and constant chord wing. If you're a beginner or an old timer you'll find Twin Lizzie fun to build and fly.
Fuselage: Let's begin by cutting out the sheet balsa fuselage parts. There are two plywood parts, two 1/8 sheet balsa parts, and seven 1/16 sheet balsa parts. Lay out the first side directly on the wax paper covered plan, cutting two of each piece as you go along. The second side is built over the first, and the two sides are allowed to dry before removing from plan, sanding and separating.
While the sides are drying hard, bend the 3/32 wire main landing gear to shape as shown on plan and lace to plywood part No.4 With No.30 linen thread, coating lacing heavily with cement..."
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by Keith Laumer
from Model Airplane News
IC F/F Cabin
all formers complete :)
got article :)
Found online 08/04/2011 at:
Format: • PDFbitmap
Credit*: rchopper56, planeman
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User commentsPhotos of completed Twin Lizzie model [model photo & more pics 003, 004] were found online at http://www.rcgroups.com/forums/showthread.php?t=1320861
SteveWMD - 30/01/2014
Twin Lizzie at 147% [see more pics 006] We used a 'spring and string' pull system for the twin rudders, works great, she's in her second year with hundreds of flights, one of my fav's from when I was a child, I had Laumer's book but never got to build it so I waited 50 years.
AlRobinson - 28/08/2014
Hello, It's my Twin Lizzie [see more pics 007], built in 2012, driven by electric, great flight. Regards,
Christopher - 01/10/2015
Attached is a photo of my "Twin Lizzie x2" [more pics 008].
JeffBreece - 22/07/2018
Twin Lizzie x2 [more pics 009-012]. Drew my own plans in 1990. Has been powered by glow fuel 2 and 4 cycle (5 different) motors, diesel and electric. The airfoil section I used is from the Sig Kadet. The model is covered in Super Monokote including the side windows which are clear Monokote. G-AFAW was supposed to be riotously funny but, unfortunately, my American brethren appear not to know the meaning of guffaw.
JeffBreece - 03/08/2018
Here is a picture of my Twin Lizzie that you may wish to add to the Outerzone site [more pics 013]. I lengthened the nose to balance with a light motor and added ailerons for four channel electric RC.
DavidI - 14/08/2018
For those who don't know, Keith Laumer was, as well as a prolific model designer, a popular author. I read many of his books back in the day, available in paperback, some made into movies. My favorite was "A Trace of Memory", shouldn't be too hard to find, can't put it down. His later works, after he suffered a stroke, were never quite as entertaining. Any of his titles from the 50's or 60's are stem winders.
DougSmith - 14/08/2018
He also wrote a book "How to Design and Build Flying Models" published in 1960 and revised in 1970, as well as having plans published in Aeromodeller as well as Air Trails, Model Airplane News and Flying Models. Now if anyone can scan a copy of the book, I'd love to see it
Daithi - 16/08/2018
Your wish is our command, Daithi! We have Laumer's How to Design & Build Flying Models over on RCLibrary.
Mary - 16/08/2018
Here's a picture of a Twin Lizzie I bought second hand [pic 014] if you wish to use it on Outerzone.
ChrisO - 18/12/2020
Hi ! I can see that airplane can be built in a bigger scale. With ailerons added, is there a plan for it? I speak about the light blue /white airplane in the pictures.
asaf - 09/05/2023
I doubt there is one. The simplest solution would be printing the plans at whatever scale you wish and drawing the modifications you need. Or you could redraw the entire plan on your favourite CAD package, using the plan image as a background, and then change it as you wish. This would take a lot more time but it has a great learning value.
Miguel - 10/05/2023
G'day Mary and Steve. You might like these pics of my Twin Lizzie [pics 014, 015] the Keith Laumer Design. Regards,
Peter Jackson - 30/10/2023
Nice job ! I've always liked this design and it's great to see the variations. Dihedral wing, no ailerons, diesel power. Polyhedral wing, electric, no ailerons. Straight centre section with turned up wingtips, glow power with ailerons and flaps . . .
All we need now is a biplane version.
Duster - 30/10/2023
There have also been a couple of enlarged and twin-engined (!) versions too. See RCGroups thread here for some discussion and pics: https://www.rcgroups.com/forums/showthread.php?1320861-Twin-Lizzy-confussion
SteveWMD - 30/10/2023
Thank you for the link. I rarely go to RCG as my day is only 26 hours long. Including RCG in my schedule would require some 30 hours a day, so lead us not into temptation thank you very much :)
Keith Laumer was a great designer, not only of airmodels. For me, this Twin Lizzy is high on the cuteness scale perhaps due to what I perceive as her cartoonish look, pot-belly and all. Resemblance, perhaps?
Keith has other cute designs, but some seem inspired by the post-WW2 Art Deco movement and as such they may not be to everyone's liking. The Jetsons would love them, though :)
The Twin Lizzy is a design that can be modified without losing her charm, as shown in these photos.
I happen to have a plan for Low Lizz, a low-wing variant by Carlo Ciamielli from the Aeromodelismo mag, but it's not the same thing. Another variant is a conventional single-tail group, and it loses even more.
Miguel - 30/10/2023
FM has a twin engined too: https://store.flying-models.com/catalog/product_info.php?products_id=793
pit - 30/10/2023
Pics 9-to-12 crept up in my random Gallery. The quintessential Cute model :)
Miguel - 06/12/2023
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