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Freewing T-45 90mm Turbine conversion

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Freewing T-45 90mm Turbine conversion

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Old 04-11-2016, 11:27 AM
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Bobneal1
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Default Freewing T-45 90mm Turbine conversion

I am putting one together now. Anyone flying one?

Thanks,

Bob Neal
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Old 04-11-2016, 11:59 AM
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ravill
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Those little foamies are just awesome! The scale detail is dizzying!
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Old 04-11-2016, 12:01 PM
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I have one Bob. Electric DF version though. It's a great little jet. Nice slow high alpha landings with full flap, slat and airbrake.
I made some mods and installed an Igyro as well. That made it even better.

Levi
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Old 04-11-2016, 12:04 PM
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Originally Posted by Bobneal1 View Post
I am putting one together now. Anyone flying one?

Thanks,

Bob Neal
I like these little conversions. Would like to see your process. What engine?
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Old 01-29-2019, 08:51 AM
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Is there anyone flying one of these with a turbine? I've heard there is a conversion kit available from HAB but could not find anything on their website. I just ordered one and I intend to fly it with a K30, would like to know what others have done before I start cutting this thing up Thanks, Tom
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Old 01-29-2019, 09:11 AM
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Default Turbine conversion

I had a Kolibri T-45 in mine. It flew pretty well. It came in at about 10 lbs with 1 litre of kero. I had to cut away a lot of foam in the center of the fuselage to get the Fiji water bottle fuel tank in but it was right on the CG. You need to make your own engine mount. I saw one on HAB website but I could never get them to respond to anything. You will need to mount the engine as far forward as you can ,don't use the stock edf mount it's way too far rearward. I had 2, 1100 mah A123 batteries for the radio and a 1000 mah 2 cell lipo for the turbine. I put everything as far forward as possible and I still had to add 3/4 ounce of lead under the nose cap to balance it. I don't know what a Kingtech 30 weighs but my Kolibri was 14 oz.
I added JP hobby wheels and brakes to mine to meet AMA rules and the electric retracts would barely retract the gear in flight. These wheels are much heavier than the stock plastic wheels. Maybe if you fly off grass you could eliminate these.

I had trouble with my engine spitting fire out of the front on startup and it caught fire. I had the extinguisher right there and hit it but it had done too much damage for me to deal with fixing it. I used a coat of BVM ceramic paint in the tailpipe area with 1 layer of the ceramic cloth covered with a layer of aluminum tape. This was overkill. I didn't heat or flameproof in front of the motor at all and that's why it burned I had a Tams pipe installed. I also ordered a grumania pipe. The bellmouth is too large in diameter to fit inside the T-45.

I hope this helps you.

Bob Neal
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Old 01-29-2019, 10:44 AM
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Originally Posted by Bobneal1 View Post
I had a Kolibri T-45 in mine. It flew pretty well. It came in at about 10 lbs with 1 litre of kero. I had to cut away a lot of foam in the center of the fuselage to get the Fiji water bottle fuel tank in but it was right on the CG. You need to make your own engine mount. I saw one on HAB website but I could never get them to respond to anything. You will need to mount the engine as far forward as you can ,don't use the stock edf mount it's way too far rearward. I had 2, 1100 mah A123 batteries for the radio and a 1000 mah 2 cell lipo for the turbine. I put everything as far forward as possible and I still had to add 3/4 ounce of lead under the nose cap to balance it. I don't know what a Kingtech 30 weighs but my Kolibri was 14 oz.
I added JP hobby wheels and brakes to mine to meet AMA rules and the electric retracts would barely retract the gear in flight. These wheels are much heavier than the stock plastic wheels. Maybe if you fly off grass you could eliminate these.

I had trouble with my engine spitting fire out of the front on startup and it caught fire. I had the extinguisher right there and hit it but it had done too much damage for me to deal with fixing it. I used a coat of BVM ceramic paint in the tailpipe area with 1 layer of the ceramic cloth covered with a layer of aluminum tape. This was overkill. I didn't heat or flameproof in front of the motor at all and that's why it burned I had a Tams pipe installed. I also ordered a grumania pipe. The bellmouth is too large in diameter to fit inside the T-45.

I hope this helps you.

Bob Neal
Thanks Bob, this is very helpful. The K30 weights 14.5 oz, so just about the same as the T45, but a lot less thrust. I have a T35 in a Habu and had the same thing happen, fortunately I had put some aluminum tape around the whole turbine compartment so the damage was minimal to the airframe. I did have to replace my wiring harness on the turbine though. Anyway, I got all that sorted and the Habu flies great.
I'm also planning to use electric brakes, I think they are same ones from JP, I got them from FanJetsUSA.com so I will have the same problem with the retracts, may have to look at alternate solutions, but that will add more weight unfortunately. Decisions, decisions...I may have to put a T35 in the this T45

Thanks again for the help! Tom
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Old 01-29-2019, 06:57 PM
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Old 01-29-2019, 07:02 PM
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Here is the mounts from hab ..comes with tank and a pipe .
contact Amir at Hab amir@hab.se
plane flew awesome on k- 30
had jp wheels brakes I had no issues on gear closing.
I lost the plane on final flamed out ..my fault I made my tygon line to long and clunk got caught up in the corner no fuel after 4 min flight ...doing another one ..
Gary at efluxx rc has jp wheels and replacement tires
Dan

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Old 01-29-2019, 09:46 PM
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Perfect! Ive ordered from Amir in the past so that is very helpful. Did you use 60mm wheel/brakes?

Thanks again, Tom
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Old 01-29-2019, 09:56 PM
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Yes 60mm
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Old 01-29-2019, 10:03 PM
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Amir's kit makes a very easy install , Just one note when you get his kit if you haven't gotten your plane put together yet you do not want to glue the back piece on until you put the pipe centering spacer in, it's much easier do with the back piece off You'll understand what I mean when you get his kit.
Dan
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Old 01-30-2019, 06:22 AM
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Thanks so much Dan. I just heard back from Amir, they have the kits in stock so I should have it in a week or so. -Tom
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Old 01-30-2019, 07:19 PM
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Originally Posted by Tip22v View Post
Is there anyone flying one of these with a turbine? I've heard there is a conversion kit available from HAB but could not find anything on their website. I just ordered one and I intend to fly it with a K30, would like to know what others have done before I start cutting this thing up Thanks, Tom
Buddy of mine had a K-70 in his and flew great ... the take off is a little heavy but the landing is lighter than 6s 10 ah pack.

K -30 would be more useful
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Old 01-31-2019, 10:49 AM
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Originally Posted by erh7771 View Post
Buddy of mine had a K-70 in his and flew great ... the take off is a little heavy but the landing is lighter than 6s 10 ah pack.

K -30 would be more useful
Thanks for the info. I'm hoping to keep it at 10 lbs or less, I'm not looking for a speed demon in this one. A K70 must be crazy power for this little guy, I've got a K70 in my HSD F16 and it flies really nice at 17.5 lbs. -Tom
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Old 02-06-2019, 01:02 PM
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Does cutting all the foam out to fit the tank cause any structural integrity issues with the fuselage? I was studying how the fuselage is assembled last night and it looks like removing all this foam could make the center of the fuselage weak, but then I looked at how the wing attaches and thought that maybe the wing itself strengthens the fuselage because it bolts both forward and aft? I'm also assuming there are more than just a few folks flying this jet with a K30? I'm hoping my turbine conversion kit from HAB arrives this week so I can get started on this build! Thanks for the help, Tom
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Old 02-11-2019, 08:43 AM
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Here are some pics of my setup using the kit from HAB. The tank fits very nicely right over the CG, I used a hacksaw blade to cut the opening for the tank, worked well and did not make a big mess. The bracket for the exhaust tube fit perfectly into the grove for the EDF fan unit, which is upfront, I assume this is how it is supposed to be mounted? If the included bracket is supposed to be near the rear can someone show me where? Also, if the bracket goes somewhere in the rear how is the front of the exhaust tube supported? If the bracket does go forward, how are folks supporting the rear of the exhaust tube? Thanks for the help. -Tom
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Old 02-11-2019, 09:07 AM
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Hi Tom ..
email me yf22raptor1966@gmail.com
They way you have it not correct.
can help.
Dan
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Old 02-11-2019, 09:12 AM
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Old 02-11-2019, 09:18 AM
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Hi Tom, the turbine mounts where the EDF unit used to be the hab unit slides down inside where the wood is you glue it in you will then drill 2 holes in your pipe where the hab units little prongs come out those attached the pipe , Put your turbine tail cone about 20 mm into the pipe the rear pipe centering unit goes in the back towards the end of the exhaust where the 2 pieces of your fuselage meet and is glued in... hope this helps ..

Dan
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Old 02-11-2019, 10:30 AM
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Thanks so much for the clarification! I glued the turbine mount together, but have not yet glued it into the airframe. I hope I can flex it enough to fit the prongs into the holes in the bell housing. Can you post a picture of where you mounted the rear tube support? Thanks again! -Tom
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Old 02-11-2019, 10:40 AM
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Tom
E mail me ..I can explain better ..
yf22raptor1966@gmail.com

tnx Dan
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Old 02-11-2019, 10:55 AM
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Email sent. Thx. -Tom
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Old 02-15-2019, 10:46 AM
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Big thanks to Dan for helping me get this right

Because I glued the motor frame together before I drilled the holes in the exhaust tube I had to come up with an alternate solution to secure the bellmouth of the exhaust tube:




Here is a photo of the rear support, I had to carve out a little foam to get it to fit.
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Old 02-15-2019, 05:53 PM
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Looking good 👍
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