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March-2024
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"COX Budapest" .049 engine



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Post  Ken Cook Sun May 10, 2020 8:43 am

Last weekend, John's wife Buzz asked anyone if possible to put up some flights in honor of John. My flying partner Dan pulled out the 7' wingspan Flite Streak. My son launched . We had some custom lettering done on the underside of the wing which unfortunately didn't show in the video. On the inboard it says thank you Buzz and the outboard says thanks John for all you've done. The giant streak made it's debut at the Brodak Fly In. The engine is a 120 swinging a 15" prop and it flies on 63' .032 lines. The engine is throttled controlled which is similar to your tv remote control using infrared. The batteries are housed in a small case alongside the handle. The batteries were left in during storage which caused corrosion. The throttle was surging up and down prior to Dan bringing it back down to idle. It's quite a handful to fly and hold on during launch.

https://www.youtube.com/watch?v=YriSyKG2NRM&feature=youtu.be
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Post  rsv1cox Sun May 10, 2020 8:54 am

Two hands holding, 20 degree lean-back and hold on for dear life.

Enjoyed the flight!!!!!

Bob
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Post  getback Sun May 10, 2020 9:00 am

Wow that it one Big bird !! I can see that he was leaning way back to keep a balance . Great that ya'll could do this for Buzz and a contribution to John . Very Happy
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Post  aspeed Sun May 10, 2020 9:32 am

10 1/2 lb. weight with a 20g pull test would drag poor little Dan off his feet. Looks like he had a pucker moment when the motor faltered when inverted. Dan is the man. I flew a Clown race with him last year at the the Brodak meet. Never a dull moment. Hope the meet continues.
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Post  fredvon4 Sun May 10, 2020 11:00 am

That was fun...RIP John...prayers for Buzz
Dan Banjock you are awesome
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Post  MauricioB Sun May 10, 2020 6:47 pm

Hi Ken, that's a great model! He looks very calm on his flight! Spectacular!
Enjoy the video! ... so you control the engine speed!, I did not realize what the system is like, I have never seen it, does the pilot have an additional remote accessory ?, or is it included in the control handle?
Thank you
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Post  Ken Cook Sun May 10, 2020 7:41 pm

Mauricio, I'm not certain of the designer of the system. The system though is controlled by a device he wears like a wristwatch. Then on the handle, he has a lever he operates with his forefinger. In the video when the plane sounded as if it was going to quit it was actually him doing that. However, he had the limit switch on the servo on the plane not properly adjusted. The engine almost did completely quit. Storing this large plane is very problematic, it takes a lot of abuse in getting banged around and Dan should be checking these systems with a more regular frequency rather than out at the field. If this plane goes on full throttle during the flight, he ends up walking in a large elliptical circle. When he landed, I discovered that one of the wires was not so good in it's connection which was more than likely the reasoning the throttle was erratic. Typically, this works very well on this plane.
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Post  MauricioB Sun May 10, 2020 9:06 pm

Thanks Ken for the explanations.
That's right, at one point the engine wants to stand up, but it recovers.
I see an interesting gliding ability on the part of the model.
I wonder what effort in kilos the plane will exert on the pilot when it is turning! They must be interesting kg! The pilot is viewed at an inclined angle to compensate for the effort.
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Post  Ken Cook Sun May 10, 2020 9:29 pm

I own a large Flite Streak myself with a wingspan of 62" and is .60 powered. I have it trimmed to fly with little stress to my arm. I can comfortably fly one handed but if I dial the needle in a click or two too much, I have to two hand the plane. The AMA changed the line size requirements a few years back thus allowing me to use .018's which I use. However, while my plane falls within the proper weight requirements to do so, it becomes very concerning when I've had a lean run. With two hands on it, it too has me leaning back and you just can't wait for the fuel to run out. Unfortunately, a lean run equates to longer run times and you really start praying it runs out. I generally start out running a rich flight with about two ounces and creep the needle up on the next few flights until I'm comfortable. Dan is essentially flying on the longest lines you can fly with in a competition setting as you can't exceed the 70' mark. Flying circles have a safety perimeter circle painted on the ground to not allow one to enter.
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