Mudhopper

 

Mudhopper - plan thumbnail image

Mudhopper - completed model photo

Mudhopper  
by JG Trinder
from Aeromodeller
September 1958 
48in span
Tags: IC F/F LowWing
all formers complete :)
got article :)


This plan was found online 03/01/2012 at: http://www.rcgroups.com/forums/showpost.php?p=20268633&postcount=146
Outerzone planID: oz2160 | Filesize: 428KB | Format: • PDFbitmap | Credit*: algy2

   

About this Plan

Mudhopper. Low wing sports FF power model for .75cc-1cc motors. Allbon Merlin shown. From September 1958 Aeromodeller.

Quote: "Try this tough 48-inch low-wing design for .75 - 1 cc and enjoy hours of trouble-free flying. Mudhopper, by John Trinder.

FOR SOME YEARS it has been apparent at various rallies that the majority of aeromodellers fight shy of low wing models. It is said that they are unstable and difficult to trim. The original Mudhopper, a somewhat functional design with constant chord wings and tailplane was built to prove that this need not necessarily be so. Moderate dihedral, coupled with a low CG and not too much power was sufficient to ensure stability and with these points in mind, the design was tidied up to produce the latest version presented here.

Since the local flying field is rough moorland dotted with bushes and ringed with trees, a canal and factory areas, the construction of the model is somewhat robust and this has paid off on two occasions, when flights have ended in spiral dives following displacement of the tailplane from its keying. No damage resulted at all. The design incorporates torsion sprung undercarriage legs, and plug-in wings. The entire fuselage is covered with 1/32 in sheet which enables a good finish to be obtained as well as making it fairly fingerproof. The total weight of the original is 21-1/2 oz and it has an ancient ED Bee up front. This provides ample power to take the model up in wide gently climbing circles.

Assemble the basic fuselage sides over the plane, one on top of the other and allow to set. Before separating with razor blade, cut hole for wing tongue box. Place sides upside down over the plan and join together with 3/32 in square spacers and F9. Glue bearers to ply formers F3 and F4, bolting the engine into place before the assembly has set to ensure a good fit..."

Update 03/11/2018: Added article, thanks to RFJ.

Supplementary files

Article.

Corrections?

Did we get something wrong with this plan? That happens sometimes. Help us make a correction

 

User comments

No comments yet for this plan. Got something to say about this one? Click here to Add a comment

 

Notes

* 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.

Scaling

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.

 

Terms of Use

© Outerzone, 2011-2018.

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.