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Roddie's "Tee-33-Dee" for 1/2A profi-speed Empty Roddie's "Tee-33-Dee" for 1/2A profi-speed

Post  roddie Tue Jan 02, 2024 9:40 am

I designed and built this model several years ago when CEF was having the speed contests.. but I never had a dedicated thread for it. When it was decided that FRV engines could compete; I decided to try a "jet" design. I had also recently been gifted my first two Tee Dee engines; an .049 and a .051.

The Lockheed T33 "Shooting Star" would be the jet that I chose. It was originally planned to use a take-off dolly.. but I ended-up devising a tricycle gear for it.

I started by drilling-out the hardwood engine-bearers first. I made the beams long and mounted an engine, allowing me to build the fuse around the bearers.

The beams are 1/4" Maple sq, stk. and the fuse-assembly is from 1/4" balsa sheet.

Roddie's "Tee-33-Dee" for 1/2A profi-speed 1-1-1613

Roddie's "Tee-33-Dee" for 1/2A profi-speed 1-1-1614

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Roddie's "Tee-33-Dee" for 1/2A profi-speed 1-3-1610

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Roddie's "Tee-33-Dee" for 1/2A profi-speed 1-10-110

Roddie's "Tee-33-Dee" for 1/2A profi-speed 1st_pr10

Roddie's "Tee-33-Dee" for 1/2A profi-speed Blue_a11

Roddie's "Tee-33-Dee" for 1/2A profi-speed Polyur10

more to come... Smile
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Roddie's "Tee-33-Dee" for 1/2A profi-speed Empty Re: Roddie's "Tee-33-Dee" for 1/2A profi-speed

Post  GallopingGhostler Tue Jan 02, 2024 10:50 am

Roddie (and others), my information is outdated as it used to that Rust-O-Leum professional/commercial spray in cans was reasonably fuel-proof and Krylon was not.

Is that still true? If not, then what versions of Krylon spray now is considered as good or better than Rust-O-Leum? And, use of the Min-Wax Urethane Clear spray is the final spray to add further fuel resistance?
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Roddie's "Tee-33-Dee" for 1/2A profi-speed Empty Re: Roddie's "Tee-33-Dee" for 1/2A profi-speed

Post  rdw777 Tue Jan 02, 2024 4:27 pm

Looks fast just sitting there Roddie…..Makes a cool subject for a “speed” build with a little scale flair to it…. I bet it would move out with the Tee Dee in it!!
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Post  rsv1cox Tue Jan 02, 2024 5:00 pm

The perfect name..........."The Shadow"

Roddie's "Tee-33-Dee" for 1/2A profi-speed Roddie11

Who knows? The shadow knows..........When radio was king and I used to listen.

Roddie's "Tee-33-Dee" for 1/2A profi-speed The_sh10
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Roddie's "Tee-33-Dee" for 1/2A profi-speed Empty Re: Roddie's "Tee-33-Dee" for 1/2A profi-speed

Post  roddie Tue Jan 02, 2024 5:58 pm

GallopingGhostler Today at 11:50 am
Roddie (and others), my information is outdated as it used to that Rust-O-Leum professional/commercial spray in cans was reasonably fuel-proof and Krylon was not.

Is that still true? If not, then what versions of Krylon spray now is considered as good or better than Rust-O-Leum? And, use of the Min-Wax Urethane Clear spray is the final spray to add further fuel resistance?


George, I'd have to actually "FLY" my airplanes.. to answer that question.. Laughing Laughing Rolling Eyes Embarassed I think we can all agree that any liquid-coating/paint needs to gas-off.. and gas-off properly. What I mean is; I try to follow the directions that come with the product. If it's a "rattle-can" product and states re-coat within an hour.. or else wait days between coats; that's what I do. My Rare-Bear is the only enamel-(via rattle-can)-finish model in my fleet that's gotten any fuel exposure.. which I'm embarrassed to say was minimal. That airplane was "fogged" with multiple coats of Top Flite Crystal Clear LustreKote prior to exposure to Sig's 35% nitro glow-fuel. The LustreKote clear definitely "yellowed" my bright-white base-color.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Dsc05512

Note (below photo) evidence of clear-coat breakdown.. directly downstream of a cowled-in open-face engine cylinder.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Finish11

Roddie's "Tee-33-Dee" for 1/2A profi-speed Finish12

And that's a Top Flite product... Huh...

The Pactra company had a rattle-can product called "Formula-U" which was a polyurethane product.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Pactra16

I have an old model finished with the International Orange.. which had considerable exposure to 25%+ nitro. That finish has stood the test of time.. as well as fuel exposure.

Below is a fairly current photo. The color was very glossy. There is no clear-coat. It was painted in 1992.. and flown quite a bit.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Dsc04410

I used what was labeled as an "Epoxy Enamel" rattle-can (gloss red) coating by Krylon.. but that model hasn't had any fuel exposure to report on.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Epoxy_13

Roddie's "Tee-33-Dee" for 1/2A profi-speed Dsc01910

The Minwax clear polyurethane is an "oil-base" product.. and was used on the Tee-33-Dee.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Minwax11

Minwax also has a clear lacquer spray.. but I have not used it yet.

Roddie's "Tee-33-Dee" for 1/2A profi-speed Minwax10

I'm hoping that the extended cure-times on my model-finishes might make a difference in how resistant they are to fuel exposure.

Then there's the questions of; how often the model will be flown.. and whether it's properly wiped-down at the end of a session.. and before the engine cools down..??
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Roddie's "Tee-33-Dee" for 1/2A profi-speed Empty nose gear.. and engine mounting

Post  roddie Wed Jan 03, 2024 6:26 pm

I needed longer 3-48 machine-screws to properly engage the 3-48 lock-nuts in my engine-mounting.. which also ties-into the front strut of the tricycle-gear.

I had made upper and lower 2-hole metal plates for the lock-nuts to bear-on. The lower-plate bears across a bend in the .062" dia. music-wire strut.

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240117

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240118

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240116

The front strut..

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240120

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240122

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240124
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Post  roddie Thu Jan 04, 2024 5:39 pm

This would/will be the most potentially intimidating C/L model for me thus far. It wasn't completed for the CEF contest for which it was intended back in 2015/2016. (coming-up on 8 years ago.... Shocked )

This is a current photo below.. I'm glad that I scrapped the take-off dolly option.. and devised a tricycle-gear. (my first).. I would later design/build a P-38 profile/slab-wing model with a tricycle-gear.. but totally different in its execution.

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20240125

I could (and may..) fit a Medallion .049 for the maiden-flight. I'd rather have a much larger and known-stable air-frame for my 1st Tee Dee engine-powered flights.
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Post  Mike1484 Thu Jan 04, 2024 6:59 pm

Like all your planes Roddie it is very nice and neat. Put a picture of you in the cockpit. Looks fast just sitting there.

                                       Mike1484
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Post  balogh Fri Jan 05, 2024 1:15 am

Very nice plane, Roddie, congratulations. Do not fear the TeeDee, if given the care and attention, this family of COX engines is one of the, if not the most dependable (at least based on my experience with the 010, 020, 049, 050, 051 and 09 TeeDee-s I am flying in their RC service today). Do the maiden flight with a slightly rich setting, the TeeDee will haul your ship even in a "4-stroke" run. If this is your first TeeDee experience, rest assured you will not want to swap it in the nose of your bird after the maiden flight.


Last edited by balogh on Fri Jan 05, 2024 2:13 am; edited 1 time in total (Reason for editing : typo correction)
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Post  Yabby Fri Jan 05, 2024 1:26 am

Hey Roddie cheers As Andras rightly said, do not fear the TD. Thumbs Up they are excellent engines and you wont have line tension issues with a TD within reason. lol. They run like a mill. Hit their revs and your plane flies with an engine that provides constant power, even if set a tad rich. The worst thing with flying a new jigger is when the engine is inconsistant. Get a TD setup right and all you gotta do is fly it. sunny cheers Thumbs Up
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Post  rsv1cox Fri Jan 05, 2024 6:58 am

Nicely done roddie. The T-33, I remember them well from my time at Pensacola. It's also very F-80 like too.
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Post  rdw777 Fri Jan 05, 2024 2:20 pm

Good eye for lines and color Roddie….. Neat design and great execution…..The trike gear looks right on the plane but I think the dolly idea was pretty cool too…Would look awesome in the air “gear up”….Regardless, I bet it will go pronto …
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Post  roddie Fri Jan 05, 2024 3:30 pm

Like all your planes Roddie it is very nice and neat. Put a picture of you in the cockpit. Looks fast just sitting there.

Mike1484


Thank You Mike. I obviously prefer designing/building.. to flying.
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Post  roddie Fri Jan 05, 2024 3:33 pm

balogh Today at 2:15 am
Very nice plane, Roddie, congratulations. Do not fear the TeeDee, if given the care and attention, this family of COX engines is one of the, if not the most dependable (at least based on my experience with the 010, 020, 049, 050, 051 and 09 TeeDee-s I am flying in their RC service today). Do the maiden flight with a slightly rich setting, the TeeDee will haul your ship even in a "4-stroke" run. If this is your first TeeDee experience, rest assured you will not want to swap it in the nose of your bird after the maiden flight.


Thanks to you too Andras!! You're making me feel better about it... Smile
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Post  roddie Fri Jan 05, 2024 4:08 pm

Yabby Today at 2:26 am
Hey Roddie cheers As Andras rightly said, do not fear the TD. Thumbs Up they are excellent engines and you wont have line tension issues with a TD within reason. lol. They run like a mill. Hit their revs and your plane flies with an engine that provides constant power, even if set a tad rich. The worst thing with flying a new jigger is when the engine is inconsistant. Get a TD setup right and all you gotta do is fly it. sunny cheers Thumbs Up

_________________
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Hi Gary! My only experience thus far with running a Cox Tee Dee engine was with a .09 a few years ago. It was a bench-run after a disassembly to inspect a suspect bent conrod.. and it was one time. I definitely need to bench-run my Tee Dee engines more; to get a feel for how to start them, tank-height/type etc. I currently have X2 TD .049's, X1 .051, and X2 .09's. They're all very foreign to me. I received all of them in "lots".. where there were several different "brand" engines in each lot. I can count on one hand; the number of times that I've run an FRV engine.. and have fingers left-over. None of them were mounted on model airplanes.

I'm used to my Cox reed-valve mills.. and all of their idiosyncrasies. Smile ... but it's well past time to familiarize myself more with the Cox Tee Dee's.. and what they have to offer in the way of performance increases.
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Post  roddie Fri Jan 05, 2024 8:16 pm

 rsv1cox Today at 7:58 am
Nicely done roddie. The T-33, I remember them well from my time at Pensacola. It's also very F-80 like too.


Thanks Robert!! Smile and thanks for your service. I've always been a fan of the "Blue Angels" and the "Lockheed T-33"

I had reservations about a prop-driven model.. but I figured that a 1/2A profi-scale speed-model would just be the Ticket to Ride...
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Post  roddie Fri Jan 05, 2024 8:33 pm

rdw777 Today at 3:20 pm
Good eye for lines and color Roddie….. Neat design and great execution…..The trike gear looks right on the plane but I think the dolly idea was pretty cool too…Would look awesome in the air “gear up”….Regardless, I bet it will go pronto …


Thank You too Robert. Many of my designs have yet to fly. I LOVE (I really love..) the design-element.

The "dolly" has been given a fair amount of consideration.. and the latest design is pending testing.

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20230123

Roddie's "Tee-33-Dee" for 1/2A profi-speed 20230124

Developed for my T33... it can adjust +/- lengthwise to accommodate various designs..
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