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General control line discussion => Open Forum => Topic started by: Keith Renecle on August 12, 2017, 11:01:02 PM
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Hi All,
I managed to get the results for F2B in the Euro champs. A big congrats to Igor for winning and to all who competed in that sort of heat of around 40°C or 104°F. Well done to the judges as well for sitting out there in those difficult conditions. Hopefully we will get some photo's posted as well. If anyone has links to some pics then please post them. Thanks!
Keith R
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Thanks for posting Keith. Igor up to his old self. Wonder how I might get in touch with Evgeny Yakovlev. Really like plans of a very old design of his...
Dave
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Specify what you're after Dave and I'll ask around.
Congratulations Igor!
L
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Lauri I don't know if it had a name other that 7 cc model but had a trike landing gear. I had some bad drawings somewhere too rough to scale well. I have a couple Raduga 7s... This had to be Classic era.
Dave
Well wrong Evgeny..... dang. Still want better drawings.
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Wow, Dave. No wonder you like this one. Looks like something straight off a "muscle car era" drawing board, doesn't it. Especially the canopy and rakish wheel pants.
Ted Fancher
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Wow, Dave. No wonder you like this one. Looks like something straight off a "muscle car era" drawing board, doesn't it. Especially the canopy and rakish wheel pants.
Ted Fancher
How do you like where the bell crank is mounted? That could be fuel for discussion by some people!
Type at you later,
Dan McEntee
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Here is one of Igor's flights. Posted on youtube by jofrey007.
https://www.youtube.com/watch?v=e1b2QmREhe4
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Yeah Ted I think it's 'cool'. When I went to simply blow the drawing up it's obvious it's was cad-drawn so it become a bunch of dashes about 1/2" wide. I have a "well I guess so" set of drawing about half done but I'd sure like something cleaner to work with. I can't even sort out for sure whether or not it's Ibeam or full rib. I know it was a champion airplane in it's time. There is another one I'd like to do if I could get plans.
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How do you like where the bell crank is mounted? That could be fuel for discussion by some people!
Type at you later,
Dan McEntee
Dan the crank location really doesn't matter but the concept I think at the time was to get it close to the CG. It shows the way most were flying wayyyyyy too nose heavy in the day with the old 5" (EZJust) handles and pouring on the noseweight to keep them from jumping like a nervous cat. The crank could have been entirely behind the spar for all the difference it would make other than the extra friction at the leadouts.
Dave
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Hope somebody posts some pics!? Maybe info on who flew what!? Curious minds want to know.
Dave
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Yeah Ted I think it's 'cool'. When I went to simply blow the drawing up it's obvious it's was cad-drawn so it become a bunch of dashes about 1/2" wide. I have a "well I guess so" set of drawing about half done but I'd sure like something cleaner to work with. I can't even sort out for sure whether or not it's Ibeam or full rib. I know it was a champion airplane in it's time. There is another one I'd like to do if I could get plans.
Dave send the link to Staples on 95th and Quivera. I have sent such links to them with great results. Go talk to them first and get the right E-Mail.
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Dave send the link to Staples on 95th and Quivera. I have sent such links to them with great results. Go talk to them first and get the right E-Mail.
Hey John , it doesn't work. That's what I tried at Kinkos. This isn't an original scale drawing. It was cad drawn at a much smaller size the full so when you blow it up the full size it's a blob mess. I'd like an original full size hand-drawn print. We former draftsman were toast 30 years ago!
Dave
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I still say Staples as I have sent the link address of plans from here on the forum and had full size copies made that were very usable. They were like I had drawn them full size to begin with. How do you think I got full size plans from Tom and Don just using the link to the drawing. D>K
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Doc I'll try to remember to put the blow ups in the car to show you. Your drawing worked because they started as full size on the other end, were reduced and sent to you, then simply blown back to original. These drawings were never full size to begin with. They were computer generated the size of your computer screen. If you enlarged your computer screen to five feet all you'd see were hundreds of thousands of colored dots (pixels) and you couldn't make out anything. That's the story with these drawings. Someone other than the designer drew them in tiny size on a computer many years later because this cad technology didn't exist when the airplane was designed in the early 60s.
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(http://discovery-aeromodels.com/images/drowings/evgeniy-petrov-7cc-aeromodel-drawing.jpg)
If you fart around long enough on google , it catches on . S?P Theres a Russian Magazine plan & artical on its sistership there somewhere . Twp Pages.
Real Construction Plan .
Id Like Yakovlevs ' contact ' incidently .Thanks
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Dan the crank location really doesn't matter but the concept I think at the time was to get it close to the CG. It shows the way most were flying wayyyyyy too nose heavy in the day with the old 5" (EZJust) handles and pouring on the noseweight to keep them from jumping like a nervous cat. The crank could have been entirely behind the spar for all the difference it would make other than the extra friction at the leadouts.
Dave
Dave, I agree with everything you said, but will add that I think with it being a trike gear, and my limitied experience with them, that you almost have to trim them a bit nose heavy to keep the front wheel on the ground so the BC is in a decent spot in relation to what I would predict the working CG to be.
EricV
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Dave, I agree with everything you said, but will add that I think with it being a trike gear, and my limitied experience with them, that you almost have to trim them a bit nose heavy to keep the front wheel on the ground so the BC is in a decent spot in relation to what I would predict the working CG to be.
EricV
Im sure you are right. I think my Formula S liked being more noseheavy in re ground handling. Not many competitive trikes flying today.
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Here is one of Igor's flights. Posted on youtube by jofrey007.
I don't know why they were complaining, that site doesn't look too bad to me. It would have been the best WAM site ever, and a lot like the local Woodland-Davis site at which we have Fox 15 Hurl.
Brett
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Dan the crank location really doesn't matter but the concept I think at the time was to get it close to the CG. It shows the way most were flying wayyyyyy too nose heavy in the day with the old 5" (EZJust) handles and pouring on the noseweight to keep them from jumping like a nervous cat. The crank could have been entirely behind the spar for all the difference it would make other than the extra friction at the leadouts.
Dave
Hi Dave;
Yeah, I know that, but would still stir some questions in some minds. You don't often see a bell crank with the front lead out right next to the leading edge! And in that drawing, it looks like it's about a 2" unit. It's hard to make out any dimensions to even try to convert it to standard measure. The over all lay out is pretty cool , though, nice lines and as a devotee of the Shark.45 I like trike gear also.
Type at you later,
Dan McEntee
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If they didn't like that site, they could schedule at the Delta Park site in Portland, OR. Hehe.
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You still balance the trike geared planes on the CG. The main landing gear is positioned just behind the CG so the plane will drop onto the nose wheel when you push the tail down and release it.
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One can look at some photos of the 2017 CL EU Champs here:
https://goo.gl/photos/qXRcnPMcBia8bGWs6
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Thanks for the link. A lot of great looking planes. H^^