Basic Trainer (oz8692)
About this Plan
Basic Trainer (Let's Fly). Simple profile trainer for control line. Note the plan shows two wing airfoils, for basic trainer or stunt trainer.
Quote: "How many times have you wished that someone would take the time to outline the many so-called mysteries of deisgn and flying of your favourite type of modelling. Too often we assume that because we know, everyone else must. Therefore, we offer this how-to-do-it for stunt control-line design and flying..."
Hey you two, I ran across that RCGroups PDG thread saw you had been updating the list so I decided to run thru it again. So, here is the CL Trainer from the August 1960 MAN. There is no article associated with it other than the instruction sheet.
Plan was printed in the magazine at 1/4 fullsize, this has been scaled up to full wingspan at 32in.
Note this plan shows a choice of 2 airfoils for the wining, making this either the 'Basic Trainer' or the 'Stunt Trainer'.
Direct submission to Outerzone.
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User commentsI have built this lately and flown it a few times now, as a trainer for my first flights in over 50 years. Mine is Enya 19V powered.
PatOD - 23/05/2018
Added fab photo of the finished model, thanks to PatOD [model photo & more pics 003].
Mary - 18/06/2018
This is my version of Paul Del Gatto's Basic Trainer oz8692 from 1960 [more pics 004-006]. Shame it didn't have a proper name. My inspiration for building it came from the all sheet stunt models designed by Dick Sarpolus for the Cox TD049. A good example is the 1/2A Nobler oz2354 and it's well worth reading the attached article. At a time when most all sheet 1/2A kit models were around 20ins span, Dick Sarpolus was building stunters with a span of 26-28ins. I wanted to try one of these models converted to electric. For a long time I also wanted to build Paul Del Gatto's Basic Trainer as I really like the look of it. Fortunately Steve had enlarged the plan to full size rather than just publish the original small dimensioned drawing. Big thumbs up Steve!! So I printed out the plan at 87.5% giving 28ins span instead of the original 32ins. It's an absolutely perfect design for electric C/L with its long nose and big wing. And the wing and tailplane are on the fuselage centreline which avoids the unattractive trainer-like solution of the bellcrank on top of the wing. I built it exactly like the 1/2A Nobler using mail ordered quarter grain balsa for all parts to minimise the chance of warping. I used traditional balsa glue (UHU Hart) instead of my usual water based PVA as I recently had some problems with warping when edge gluing balsa sheets with PVA. The balsa glue worked brilliantly. The model is fitted with the fabulous CF2850-2840kV motor with the HobbyKing 7035 white prop which gives 105W input power and over 400g thrust on a 2S lipo. That must be very close to the 0.105 bhp (= 78W) output power of a TD049. I've ordered an Afro 20A ESC which is one of the new generation ESC's designed for racing quadcopters. Small, light and very capable of handling the power. The model weighs 160g as shown, on top of that will be the ESC, receiver for throttle and the 2S Lipo. Three coats of well thinned dope, a couple of stickers and my long defunct AMA number as it is an American design - a totally minimalistic finish to keep the weight down.
ChrisPinn - 10/10/2018
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