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Qwic-fly

Old 12-26-2007, 07:58 PM
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Default Qwic-fly

From Santa, I recieved a NIB full kit Qwic-Fly ( Qwick-Fli MK III) from Home and hobby Solutions YA! I also recieved a brand new OS AX 55. I,m thinking of puting the AX 55 in the Qwic-fly.

Does anybody have any opinions on this combo??? I'm thinking of doing a build thread if anybody is interested. This is one of my all time favorite planes.

Pete
Old 12-26-2007, 09:06 PM
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Default RE: Qwic-fly

rv7: There was a post in another thread about the AX55 for a Mach 1 I believe. That thread is what swayed me to use the engine in my Banshee. I believe in the instructions of your kit, Jeff installs a .45.

I also have the same kit on my build list.

FB
Old 12-26-2007, 09:17 PM
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Default RE: Qwic-fly

I have one too and it is a very well done kit! If I ever get around to building it I’ll use a RJL/Kraft 61 engine.
Old 12-27-2007, 02:19 AM
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Default RE: Qwic-fly

I think the AX55 would be sweet . . I have one of these engines and a mate has one in a 63" span Angel S and it flies great.

Is the Quic-Fly a scaled down version . . I remember flying a Kwik-Fly III when I was a kid. I think it was 66" span??

Jeff
Old 12-27-2007, 07:34 AM
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Default RE: Qwic-fly

Jeff, i'm not sure the mkIII has a 59" WS and jeff from HHS says its from the orginal plans, I think other models of the QF did have different WS. Maybe someone else can give more info on this.

Pete
Old 12-27-2007, 07:48 AM
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Default RE: Qwic-fly

Did some digging . . here we go . .

>The Kwik Fli was published in RCM on 10/64 and used a 61 engine, 660 sq in and had 66” wing. The Kwik Fli II was published in RCM on 4/65 used a 61 engine, 649 sq in and had 59” wing . >

I was 12 years old when I flew this plane . . it was a pretty current model back then. I loved the plane and knew every inch of it (memory is fading). Great flying plane.

Found this here http://www.rcuniverse.com/forum/m_3874483/tm.htm

Cheers, Jeff
Old 12-27-2007, 08:01 AM
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Default RE: Qwic-fly

Found this artical . . great reading. http://time.fh-augsburg.de/~erd/Mode...ad/KwikFli.pdf

It appears the Mk III was (approx) 59" although 60" is getting a popular vote. Funny, I could have sworn it was 66" . . maybe I had a MkIII fuse with a Mk2 or Mk1 wing ???????

Jeff
Old 12-27-2007, 09:27 AM
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Default RE: Qwic-fly

Jeff,

That's a great article you found there - everything you could ever want to know about the Quick Fli series.

Someone obviously spent a lot of time collecting all that information. Whoever you are - thanks and also thank you Jeff for finding and posting the link.

Ray
Old 12-27-2007, 11:25 AM
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Default RE: Qwic-fly


ORIGINAL: Free Bird

rv7: There was a post in another thread about the AX55 for a Mach 1 I believe. That thread is what swayed me to use the engine in my Banshee. I believe in the instructions of your kit, Jeff installs a .45.

I also have the same kit on my build list.

FB

----------------


I'm moving in the opposite direction from most of the folks that are planning to use the OS.55AX in place of a .61.

Speaking with Dub Jett a little while ago via telephone, his comments said to think of the OS.55AX as more of a hot .40 engine (I'm paraphrasing). With that said, I'll go with my original plan of using them in my Tower Kaos ARF models and use a proper .61 in the Banshee. Remember, the Banshee was alleged to have been powered by an HP.61, or so I've read in this forum. I don't think of that engine as being particularly small or light.


Ed Cregger
Old 12-27-2007, 01:21 PM
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Default RE: Qwic-fly

Banshee was alleged to have been powered by an HP.61
Funny you should mention that - one magazine report I read about the 1973 World Champs said Jim Martin's Banshee was powered by an HP 61. In another magazine report it said a Northfield Ross 60. Perhaps main and reserve models?

Looking at the photographs all I can say is the silencer sure looks like an HP.

Ray

Old 12-27-2007, 02:56 PM
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Default RE: Qwic-fly


ORIGINAL: Ed Cregger

Remember, the Banshee was alleged to have been powered by an HP.61, or so I've read in this forum. I don't think of that engine as being particularly small or light.

Ed Cregger
I thought he used a Webra Blackhead long before the WC. Maybe he switched engines a few times.
Old 12-27-2007, 04:11 PM
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Default RE: Qwic-fly

When I saw him fly the demonstration flights at Lakehurst NAS in NJ, he was alleged to have been using the Webra Blackhead, but it was really screaming. I've never heard any other Webra Blackhead rev up as that one did that day. I trust my source of information for that day. What Jim used afterwards is another matter entirely. In the final analysis, I'm as confused as everyone else.


Ed Cregger
Old 12-27-2007, 05:46 PM
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Default RE: Qwic-fly

Now you've gone and done it Ed! I was looking at the AX55 as a way to save some weight for my Banshee (sorry, I don't mean to hijack this thread). Maybe the OS or Tower .60 would be a better choice. The specs on both are also most identicle.

FB
Old 12-27-2007, 09:38 PM
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Default RE: Qwic-fly

Edit: oops...posted in the wrong thread[X(]
Old 12-28-2007, 12:15 AM
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Default RE: Qwic-fly


ORIGINAL: Free Bird

Now you've gone and done it Ed! I was looking at the AX55 as a way to save some weight for my Banshee (sorry, I don't mean to hijack this thread). Maybe the OS or Tower .60 would be a better choice. The specs on both are also most identicle.

FB

------------------


Better to find out ahead of time, I would think...<G>


Ed Cregger
Old 12-28-2007, 01:44 AM
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Default RE: Qwic-fly

RV7driver,


I have one of Jeff's QF III's and it is sweet. The spar buildup was one of the most interesting in the 39 years I have been in RC. I did mount a Kraft 61 and it did take some finesse, as the original KF had you replace the backplate of the engine with a flat plate that then was mounted to the firewall. I did not do it that way. I used a pair of old Sig aluminum T mounts cut down and I had to make recesses in firewall for the backplate screws to keep the spinner from being way out in front of the nose. Even then I had to add a couple 1/4" blocks to the front of the nose ring to fair things in to the spinner. Most modern 61's and the Kraft are longer backplate to the front of the thrust washer than the older Super Tigre's like the Blue Head and the original OS and Enya 61's.

I think the AX 55 would be an excellent choice.

Here is a link to my build article: http://www.fancyflying.150m.com/qwic_fly_iii_build.htm

I have a lot of detail pictures on the things I found interesting, harder to do or not explained well for some of us that never built an original.

Marty
Old 12-28-2007, 03:25 AM
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Default RE: Qwic-fly

I already had one OS.55AX, but bought another one yesterday for use in my Tower Kaos ARF models. As mentioned previously, I also ordered to Jett high performance mufflers for them.

I repeated the above so that no one would think that I am bad mouthing the OS.55AX engines. Also, as mentioned previously elsewhere, according to Dub, when using his high performance mufflers, you must use smaller props than those recommended in the owner's manual for these engines. This is because of the rpm range that the Jett mufflers were designed to operate, not because this engine will not lug big lumber.

If comparing the OS.55AX, using the stock muffler, against older baffle piston .60 size engines, I would not be at all surprised if the OS came out even, or even produced more power than the old pattern sixties. I'm giving a best estimate since I haven't ran the OS.55AX as yet. Some of you with experience should jump in here and alay the fears of those wishing to use this engine in place of an old timey pattern sixty. With the stock muffler, it should do a good job while swinging the same size props used in the old pattern days.

With that said, I have a friend that had an HP.60 (long, long time ago) mounted on the front of his silk and dope covered Taurus. He ran a 10x6 size prop on that HP .60. It flew the dickens out of that Taurus, permitting it to fly huge loops, all while using the stock muffler.

The point of the previous paragraph is that while using the OS.55AX with the Jett high performance muffler, which limits prop size on this engine, don't think that a 10x6, 10x7 or possibly an 11x6 equipped OS.55AX won't pull the dickens out of your model, whether Kwik Fli, Banshee or whatever.


Ed Cregger
Old 12-28-2007, 03:34 AM
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Default RE: Qwic-fly

If you can keep the model under 3kg (6 1/2lb), I would not have any hesitation using the 55AX.

I have flown this in the 63" span 2.4kg (5 1/4lb)Angel S and it has UNLIMITED vertical swinging a 13 x 6 APC on the stock muffler. 15% Nitro / 20% Coolpower (purple).

Jeff
Old 12-28-2007, 08:34 AM
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Default RE: Qwic-fly

Marty, great picture's on your bulid, I see what your talkin about with the wing spare. I have one of the S.T blue heads and will pull it out and compare to the OS 55.

I have never heard of the hair spray thing I think I'll give that a try!! I'm just now opening the box and inventoring everything I'm really excited about this build!! Thanks so much for your build thread will use it often.

Pete
Old 12-28-2007, 08:41 PM
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Default RE: Qwic-fly

I have one of Jeff's QF III's and it is sweet. The spar buildup was one of the most interesting in the 39 years I have been in RC. I did mount a Kraft 61 and it did take some finesse, as the original KF had you replace the backplate of the engine with a flat plate that then was mounted to the firewall. I did not do it that way. I used a pair of old Sig aluminum T mounts cut down and I had to make recesses in firewall for the backplate screws to keep the spinner from being way out in front of the nose. Even then I had to add a couple 1/4" blocks to the front of the nose ring to fair things in to the spinner. Most modern 61's and the Kraft are longer backplate to the front of the thrust washer than the older Super Tigre's like the Blue Head and the original OS and Enya 61's.

I think the AX 55 would be an excellent choice.

Here is a link to my build article: http://www.fancyflying.150m.com/qwic_fly_iii_build.htm

I have a lot of detail pictures on the things I found interesting, harder to do or not explained well for some of us that never built an original.

Marty
Marty: Thanks for sharing your build article! I too have one of these kits and also have a Primus that's 75% complete. I'm waiting for the second run of King Altair kits from Jeff. Good stuff!
Old 12-30-2007, 11:16 AM
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Default RE: Qwic-fly

Well, relative's gone, inventored the Qwic-fly man I gotta till you this is one first class kit from jeff! took the new 55AX and layed on the plans to see how it would fit, its going to be a tight fit, see pics ,jeff talks about Phil Kraft made an aluminium back plate for the engine, its petty involved I don't think I'll do that, just use beams of the fire wall. Will send more pic's soon.
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Old 12-30-2007, 08:54 PM
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Default RE: Qwic-fly

Not much done, but framed horizontal stab and joined the elvators, still have to cover horizonal stab with 1/16 sheeting. Wing next Pete[img][/img]
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Old 12-30-2007, 09:47 PM
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Default RE: Qwic-fly

i traded a new .55 ax for a nice older .61 rf rear exhaust. i really hadn't broke it (.55 ax) in fully on a stock muffler but it wasn't yet at the rpms of my piped .46 ax. now that's a screamer of an engine. hopefully the new owner of the .55 continues to break it in and get more power and rpms out of it.

david
Old 01-06-2008, 01:07 PM
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Default RE: Qwic-fly

Horizontal stab cover in 1/16 balsa, rough sanded. I like the way it going togeather, pertty simple, nothing like FB's troublemaker.

Pete
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Old 01-06-2008, 01:28 PM
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Default RE: Qwic-fly

Started the wing, you must build 4 spars the splicing of the spars to make a one piece wing is were you must pay attention the wing dihedral is set with the spars The remaining of the wing is easy, just keep everything pinned down as long as you can so warps do not develop. still have the sheeting, landing gear, and wing tips left. I'll be out of town around 10 days so no building until then.

Pete
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