CEF speed contest Design Discussions (2014)

this is my favorite pic of a hurricane manned by a poles of the 303 squadron
the 303 squadron shot down the most aircraft during the battle of britain
here is a video on them

https://www.youtube.com/watch?v=ptijNcDanVw



[/quote]


Hey, thanks for the history lesson! Very entertaining and educational. Sad to find out the Brits ignored the accomplishments of the 303 squadron at the end of the war, by giving their country to the communists.

your welcome mate

here is some pictures of my progress going to do douglas bader's spitfire scheme 1961 babe bee crank and piston sanded with 2000 grit paper and drilled out venturi

LOOKING GOOD Greg !! Drilled and sanded what prop you going to use on that bee ? I got my plans blown up now get time to do some cutting and from there should not take too long ,,, going to get two more blew up today UPS store 1.20 Two sheets ... they wasted more paper in that tring to get it right size Eric

Almost done

WOW!! I like, now that's A build thread , now you see it now you don't . Looking Good !! getback

OVERLORD wrote:Almost done

I was at the Smithsonian Air&Space museum today and thought of you when I saw this.

OVERLORD wrote:Almost done

Very Cooool Lieven! Since it's Halloween.. I thought of something scary. Put a rocket-motor assist on it. It has to be an Estes motor though..

Thanks for your comments guys. After finishing the model, I thought it wouldn't be complete without a launching ramp. Just for fun I made a simple catapult to launch the model. I used a rubber band and some polyester sewing thread, plank and ali profile. I made a hook on the bottom landing skid and an eye at the rear to fix to the trigger. The whole thing works, but of course, this is not a glider, same as the real thing, looking at the wing on Jim's picture. But maybe it shoots off enough to get it going. The plane can be launched with the plank hand held or with a tripod which I haven't made yet!











Lieven

Lieven.
Is there any particular reason that you have chosen to fly this model clockwise?
Rod.

Rod, When I tried to fly my Caudron for the first contest, the plane turned into the circle several times and I lost control. On such small models, the engine torque has a significant influence on the the way it flies and it tends to lift the right wing. This make the plane turn. By turning clock wise, the torque of the engine should keep the lines tight.

A while ago, Jim posted an article about a speed biplane. The article said that the secret to its remarkable flight capabilities was the CW running of the engine with a left hand prop while flying CCW. Bearing that in mind, I hope to achieve the same thing.

Lieven; Great idea with the rubber band asset launch pad ! I was wondering about the CW flight also ? I have some LH props I am wanting to try but will need to be cut down for performance : I know if you fill that stunt tank up you will get all you want with it getback

I love this contest and the various models and for second (or is it third) year/time I find myself in November with lots of ideas but nothing started....dang it! (that and the fact that I have zero experience in good photography much less video) and truth be told the video portion is what keep me procrastinating as I am a modeler of one in my area and just launching off a stooge is a lot of prep..... positioning a cell phone (my only camera theses days) to record the flight is beyond my ability

No excuse either as I have everything need to scratch build any 1/2a plane ever designed or dreamed of

On the other hand this thread and all the ideas make for great reading, learning, and innovative ideas

You guys keep pumping out the beautiful examples of aircraft modeling and lots of us will enjoy the trip around the circle with you

Thanks Fred it would bee:babe BEE: a lot harder if you hadn't of kickstarted me into cl

Well I got started to day wouldn't want to wait till the last minute     the plans    getback

p 51 mustang isn't it with Packard merlin?

Yep Greg P-51B , I have a Question are we running a TD .049/51 class or only reed ? I cant seem to find the info but I thought we were talking of a TD class at one time . I have got some more detail worked out but need to start on the engine mount , Thanks , getback

getback wrote:Yep Greg P-51B , I have a Question are we running a TD .049/51 class or only reed ? I cant seem to find the info but I thought we were talking of a TD class at one time . I have got some more detail worked out but need to start on the engine mount , Thanks , getback

The answer to that question is YES! More importantly.. the line-length has been reduced to 35 feet from 42.  

https://www.coxengineforum.com/t5898-cef-profile-scale-speed-rules

Scroll down below the photo in the 1st post.. and you'll see the Tee Dee info. there. I've got a Tee33 Dee (Shooting Star) started.. but haven't got much more done other than cut the pieces out..

OK , Thanks Man

Ok here you go some cuts / more sanding and sanding primer cut with clear dope           Yes I am going to fly a Knife Edge the whole flight LOL Thanks Kim for the Kicking I needed. Bearers tomorrow sanding and epoxy. Need to figure out the tail feathers placement / getback

More progress , waiting on glue to dry >>   could glue the wing on but I have had enough for today getback

I'm almost finished with mine! It needs paint, lead outs and pushrod then mount engine.





It's the Lawrence Institute of Technology G-1 Goodyear racer 1949 version. It was a 'dog' and mine is kinda heavy, as you see it here, at 92 grams.

ARUP wrote:It's the Lawrence Institute of Technology G-1 Goodyear racer 1949 version. It was a 'dog' and mine is kinda heavy, as you see it here, at 92 grams.

Looking at the design, I can't see how they thought it would be competitive in Goodyear racing. A dog indeed. But, if they made the wingspan 35 to 40 feet it looks like it might make one hell of a motorglider.

The Backseat Designer Mark