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Cox Engine of The Month
My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Page 1 of 1
My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
So, it begins. It took a while, but the van and camper have been returned to "Standby Status", with the last vestiges of S.M.A.L.L. removed and stored.
And now, my attention turns to this wonderful relic from the Groovy 60's, Troy's gift of a Testors "Skyhawk". Looking like a long-winged Piper Cherokee, the foam and plastic R/C RTF has spent a long time inside it's cardboard cocoon.
I intend to control it with a single (or possible two) channel system, since the Transmitter for the 27 mhz pulse receiver is AWOL. But that's down the road...today, I was in an "engine mood" and turned my attention to the Cox Golden Bee that was bolted to the Skyhawk's snout.
Testors actually marketed the plane with both Testors and Cox engines, and anybody that's willing to check in with facts on that piece of history is welcome to do so.
The Skyhawk's Golden Bee was thoroughly Goo-Locked and also missing it's cylinder. Figure maybe in the distant past, it's owner attempted to change it's glowhead, and got the whole chunk instead. With no flats cut into the cylinder's cooling fins, maybe the owner got frustrated at trying to separate the two and chucked them. We will probably never know~~~
The Golden Bee was stuck...and I mean STUCK. I don't claim to be the Wizard of Mummified Engines, but like to think I pretty-much know my way around your typical wad of castor. This thing took two extended Prestone Hot Baths in ye ole Crock Pot before the ancient bond was broken. EVERYTHING was plugged, and digging at the petrified castor took some time.
The crank wouldn't loosen, and so was deftly knocked from the case and cleaned.
The GB got new gaskets, reed, pickup tube & spring, a replacement cylinder from the junk box,and a brand new old OEM Tee Dee head (figure any extra pop will be useful as it drags the Skyhawk through the ether).
The old spare parts engine came to life fairly easy, and I was able to get close to a 15 minute run with on-the-go refuelings.
Now, off to the plane!
And now, my attention turns to this wonderful relic from the Groovy 60's, Troy's gift of a Testors "Skyhawk". Looking like a long-winged Piper Cherokee, the foam and plastic R/C RTF has spent a long time inside it's cardboard cocoon.
I intend to control it with a single (or possible two) channel system, since the Transmitter for the 27 mhz pulse receiver is AWOL. But that's down the road...today, I was in an "engine mood" and turned my attention to the Cox Golden Bee that was bolted to the Skyhawk's snout.
Testors actually marketed the plane with both Testors and Cox engines, and anybody that's willing to check in with facts on that piece of history is welcome to do so.
The Skyhawk's Golden Bee was thoroughly Goo-Locked and also missing it's cylinder. Figure maybe in the distant past, it's owner attempted to change it's glowhead, and got the whole chunk instead. With no flats cut into the cylinder's cooling fins, maybe the owner got frustrated at trying to separate the two and chucked them. We will probably never know~~~
The Golden Bee was stuck...and I mean STUCK. I don't claim to be the Wizard of Mummified Engines, but like to think I pretty-much know my way around your typical wad of castor. This thing took two extended Prestone Hot Baths in ye ole Crock Pot before the ancient bond was broken. EVERYTHING was plugged, and digging at the petrified castor took some time.
The crank wouldn't loosen, and so was deftly knocked from the case and cleaned.
The GB got new gaskets, reed, pickup tube & spring, a replacement cylinder from the junk box,and a brand new old OEM Tee Dee head (figure any extra pop will be useful as it drags the Skyhawk through the ether).
The old spare parts engine came to life fairly easy, and I was able to get close to a 15 minute run with on-the-go refuelings.
Now, off to the plane!
Last edited by Kim on Tue Jun 18, 2019 9:03 am; edited 3 times in total
Kim- Top Poster
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Posts : 8625
Join date : 2011-09-06
Location : South East Missouri
Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
That’s a nice early Golden Bee, it would have had a thin walled cylinder, but I know you don’t care about stuff like that.
Great job on the cleanup, that was a lot of dried castor on that crank, even bent the stud getting it out!
Ron
Great job on the cleanup, that was a lot of dried castor on that crank, even bent the stud getting it out!
Ron
Cribbs74- Moderator
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Cribbs74 wrote:That’s a nice early Golden Bee, it would have had a thin walled cylinder, but I know you don’t care about stuff like that.
Great job on the cleanup, that was a lot of dried castor on that crank, even bent the stud getting it out!
Ron
Thanks Ron! Yep...it was a good morning!!!
...and I DO care...I just don't act on it!!!!
Kim- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Wow, Nice plane Kim. So that's where my old Testors Skyhawk ended up, right in your back yard. Got the rest of that GB right here head tightly bonded to the cylinder...… I'm amazed that a couple of A/F boils did not lighten the anodizing.
Great idea using a wood block inside the Cox engine test stand. I have a hard time getting my fingers in there to mount and tighten little #2 nuts and washers. But are those wood screws your using or machine screws? I don't know of many hex heads that are screws.
Bob
Great idea using a wood block inside the Cox engine test stand. I have a hard time getting my fingers in there to mount and tighten little #2 nuts and washers. But are those wood screws your using or machine screws? I don't know of many hex heads that are screws.
Bob
rsv1cox- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
rsv1cox wrote:Wow, Nice plane Kim. So that's where my old Testors Skyhawk ended up, right in your back yard. Got the rest of that GB right here head tightly bonded to the cylinder...… I'm amazed that a couple of A/F boils did not lighten the anodizing.
Great idea using a wood block inside the Cox engine test stand. I have a hard time getting my fingers in there to mount and tighten little #2 nuts and washers. But are those wood screws your using or machine screws? I don't know of many hex heads that are screws.
Bob
WAIT A MINUTE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This YOUR SKYHAWK ????????????????!!!!!!!!!!!!!!
The tag on it's wing and back listed it's owner as one Tom Tczynske of Chicago, Illinois!
Methinks my boy-like gullibility may be in play here...
Yes...I just about got to be forced at gunpoint to deal with tiny machine hardware..
The socket head screws are from Microfasteners, and listed as "Sheet Metal Screws" on their site. I've got a variety of lengths to match whatever I'm testing. They also sell "Servo Screws" which have a flange under the socket, and these are great for horseshoe backplates, along with their #2 Fender Washers.
I've gotten a lifetime supply of various hardwood end-cuts from the cabinet shop up the road. Whenever I get a new test stand, I cut a block to fit inside it, and drill all the holes to match, along with gouging out a trough for the choke tube on the side for that engine.
https://www.microfasteners.com/self-tapping-sheet-metal-and-wood-screws.html
Didn't know that antifreeze would lighten the anodizing, but she was gonna get a bath either way!
Kim- Top Poster
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Posts : 8625
Join date : 2011-09-06
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Cool looking plane and nice job of getting the GB back in action , I like those old thin walled cylinder myself . Bob i got some of those Hex hd. #2 wood screws and they are nice alot easier to work with especially if you don't want to mess up the finish on the tank ! They came from a vendor at a swap meet i was at he has pretty good prices on his stuff and a lot of small screws washers nuts ect ect . $2.00 for 40 #2X3/8 if i can find his card i will put it out there for everyone to have , hes a pretty interesting guy
getback- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Kim wrote:rsv1cox wrote:Wow, Nice plane Kim. So that's where my old Testors Skyhawk ended up, right in your back yard. Got the rest of that GB right here head tightly bonded to the cylinder...… I'm amazed that a couple of A/F boils did not lighten the anodizing.
Great idea using a wood block inside the Cox engine test stand. I have a hard time getting my fingers in there to mount and tighten little #2 nuts and washers. But are those wood screws your using or machine screws? I don't know of many hex heads that are screws.
Bob
WAIT A MINUTE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This YOUR SKYHAWK ????????????????!!!!!!!!!!!!!!
The tag on it's wing and back listed it's owner as one Tom Tczynske of Chicago, Illinois!
Methinks my boy-like gullibility may be in play here...
Didn't know that antifreeze would lighten the anodizing, but she was gonna get a bath either way!
Yup, Tom Tczynske is one of my aliases, another is Calvin Coolidge. Maybe I should use multiple happy faces.....
I found out the hard way about losing anodizing in an anti freeze boil when it sucked the life out of a sandcast Enya that I was boiling. I'm thinking about now just using the medium heat setting.
Sorry about my little escape from reality....I'm not really Calvin Coolidge, but we are about the same age.
Fitting a wood block to my Cox engine stand. Good ideas deserve duplication.
Bob
rsv1cox- Top Poster
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Kim- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Off Brand Yes Blocks are good from the cabinet builders , all kinds good stuff for US ! Kim you going to haul some camera eqip. on that skyhawk ??
getback- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
I'm just having a nice time following this thread.
Tee Bee- Platinum Member
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
getback wrote:Off Brand Yes Blocks are good from the cabinet builders , all kinds good stuff for US ! Kim you going to haul some camera eqip. on that skyhawk ??
Oh, count on it!!!!! These days, I feel somewhat "cheated" when I don't have a video to watch after a flight!
Kim- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Mount a Tee Dee with some light R/C gear on the plane and you can probably cut those wings down to a more scale like span and widen them with strip ailerons.
ticomareado- Account Under Review
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
And that Golden Bee looks too nice and unscratched to be put back into service.
ticomareado- Account Under Review
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Tee Bee wrote:I'm just having a nice time following this thread.
AND IT SHALL ROLL ON !!!!!
Ron's comment on the Golden Bee having the wrong cylinder kept chewing on me as I pushed my lawn mower around the yard---all the time channeling Bones McCoy, "Dammit Jim! I'm a Sport Flyer---Not an Historian!!!"
So, I finally got the junk box out again, and found a fairly scratchless "2" and twisted this new accessory onto the GB. Never let it be said that Kim Allen Stricker doesn't respect the the efforts of those from our past, but if I lose many RPM's, it's getting the fat cylinder again!
I was too cranky to run it after mowing the yard, so it may get run tomorrow.
Also, on the Skyhawk front, I was able to gently remove it's receiver/battery pack from behind it's firewall. Only had two tiny screws holding it in place...knowing the impact forces would all be FORWARD !
And now, think I'll take my short barrel AR-15 (Eore), and rack a few rounds into the burn barrel...don't want them yuppies across the valley to get TOO comfortable !!!!!!!!!!!!!
Last edited by Kim on Wed Jun 19, 2019 11:42 am; edited 1 time in total
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
ticomareado wrote:Mount a Tee Dee with some light R/C gear on the plane and you can probably cut those wings down to a more scale like span and widen them with strip ailerons.
Naw, that would destroy the whole reason for doing it in the first place. I'm going "retro" here. There IS an article in one of my mags (haven't found it yet) that does a "Full House" conversion on a Skyhawk, but I want to at least keep part of the illusion that 's original. It's original pulse (or similar) set may get put back in it if I can get it to be somewhat dependable.
Kim- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Well for what it's worth, the radio gear was made by ACE R/C and it is one hungry mama for battery juice to flap that rudder. That said, it was still good equipment back in the day. I never liked the set up (for the Testors version) with the receiver and the battery all packed together in the plastic box, as a battery leak could trash the whole thing. Good luck on the restoration make sure you don't have any nearby CB activity on test flight day.
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
AH the nostalgia with the GB cyl. and that antikie receiver and Servo module ,
getback- Top Poster
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
Great job on teh engine Kim. Now, I too have to ask about cleaning it up in the Crock Pot. Like Bob said, how did you do it without affecting the anodizing? Short time, low heat, in and out a few times? Or, even better, is it antifreeze, or another chemical that may not hurt teh anodizing?
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Re: My Testors Skyhawk...Chapter 1: The Golden Bee gets De-Gooed
NEW222 wrote:Great job on teh engine Kim. Now, I too have to ask about cleaning it up in the Crock Pot. Like Bob said, how did you do it without affecting the anodizing? Short time, low heat, in and out a few times? Or, even better, is it antifreeze, or another chemical that may not hurt teh anodizing?
Um, I really don't know. I use 100% Prestone, with the crock pot on low (which still seems pretty hot), let it get hot and drop in the engine. I think the first session was a little over an hour and a half, but the tank was still stuck fast to the case, so it got a second dunking of about the same length, and was able to twist the case from the tank.
I wasn't aware of antifreeze attacking the anodizing, but am gonna keep that in mind in all future dunkings!
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