Kraft Super Fli (oz12622)
About this Plan
Kraft Super Fli. Radio control scale model.
Quote: "Kraft Super Fli, by Jerry Nelson & Jim Simpson.
The full size version was designed, built and flown by Phil Kraft in what to most of us would be considered the ultimate event. The plans as presented were drawn by Gerry Nelson and reflect his superior ability which results from countless years of experience with both full size and model airplanes. The model described in this article was designed by Gerry Nelson and built by Jim Simpson.
This version of the famous Kraft Super Fli is intended for a side mounted 40 size engine, a good 40 size engine. The wing span is 55 inches and the fuselage from spinner to rudder is 47 inches. The wing is of foam construction and the fuselage is of lightweight built-up construction. There is ample room for any kind of four channel radio. The generous rudder and elevator surfaces make the model easy to spin and snap maneuvers are quick and predictable. The construction of the model makes it a good prospect for stand-off scale and the excellent acrobatic qualities will assure you of a trophy.
A lot of pictures are available of the full size version and the fact that the Super Fli can be often seen at local California air shows and model events where full size aircraft can land affords the scale buff plenty of opportunity to get his own required scale pictures.
The model was originally published in the German model magazine Flug Model-Technik and the plans as presented here are the originals from that article.
Study the plans carefully and notice the following:
1. The wing plan as presented is for a foam core; however, the tip pattern, and the alternate root rib pattern suggest the alternate 'built up' structure.
2. The aileron bellcrank mount plates are installed at an angle to permit
the short aileron pushrods to be straight. This is necessary to prevent aileron flutter in flight.
3. The main landing gear support structure is a unique combination of balsa and plywood. Do not substitute for either! You will find that as shown it is the lightest and strongest, whereas substituting would, only make it weaker or heavier.
4. The bottom of the fuselage aft of the wing is an open structure and only the covering material encloses it. Remember to be careful when handling.
WING: Foam Core: Make your root and tip rib templates from the outline shown on the plans (omit spar notches on tip rib template). Cut the foam wing blanks to shape (top view) but do not notch for landing gear. Draw centerlines on each end, attach rib templates and cut the airfoil to shape. Cut out the servo well. Assemble and install the aileron linkage as shown on the plans. It is not necessary to trim ends of Pushrod wires for servo or horn at this time.
Do not cut aileron free just yet! Next, sand the cores lightly and cover top and bottom with 1/10-in sheet balsa. Dress off the front of the wing and the tip, then install leading edge and tip block, Sand wing roots to conform to dihedral angle shown on plan..."
Direct submission to Outerzone.
Supplementary file notes
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
Kraft_Super_Fli | help
see Wikipedia | search Outerzone
ScaleType: This (oz12622) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.
If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Kraft_Super_Fli
Wikipedia page addresses may well change over time.
For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.
Do you have a photo you'd like to submit for this page? Then email email@example.com
User commentsNo comments yet for this plan. Got something to say about this one?
Add a comment
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
© Outerzone, 2011-2021.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.