BernieG

I am considering starting to build this plane. Have ordered unitracts retracts to bob Holman, am waiting on them. Not going to start immediatly as I have some stuff to finish in my workshop before.

has anyone build it ? Would like to have some comments on how it fly.

Building should not be too difficult, it looks relatively simple, beside faps and ailerons hinging, but I have some difficulties with documentation. There is plenty of books and pictures on the Me 109, but when you want more than one picture of any given plane (thinking to test myself with that plane in scale competitions, which I have never done !), Its not as easy !

Any advice, sources, etc ?

Thanks

wulf190

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Try this web address www.bf109.com, this site should have everything you could need. Follow the links to 12 o'clock high for more. If you need a few different color plates, or cutaway drawings, I can email you some. I also have the 109E Taylor plans.....excellent drawings.

BernieG

Thanks ! Cool site !

wurger

Hello BernieG,

Have built and flown the BT 109. Like all his models, if built as shown on his plan, it will produce a good, scale model that will potentially fly very well.

Like all 109's, when on the landing circuit & approach, you must keep the tail up in the flying position (by use of throttle, mainly) until the main wheels are on (or almost on) the ground. Do not let the tail drop under any circumstances otherwise you could be in the deep and cacky.

Have fun,

Regards,
wurger

Oryx

Wurger

I also recently got the BT plans for his 68" Bf-109E. I am a little busy with finishing up my studies this year, so I haven't been able to work much on it so far, but the plans really look very good to me and I am very much looking forward to spending more time on this project. I was just wondering if you could tell me what engine and retracts you used and how much your model ended up weighing (I heard BT builds very light and models often end up a bit heavier than his prototypes). Also, space seems a littlebit limited in the nose, so were you able to conceal most of the engine inside the cowl?

Thanks in advance,
Bennie

BernieG

Thanks for the sound advice, I will remember that. What engine did you use, and retracts ? Unitracs ? Mine are on order, just would like to know what you think of them. Any picture of your 109 ?

Bernard

wulf190

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I am planning on using a 1.08 with the Unitract gear. I have thought about using Robart or Spring Air as well. I don't think either would require any modification. I have heard as well that they build light. It looks like it might from the plans. I think that the 1.08 will be lots of power, but it is a pretty big plane.

wurger

Howdy all,
Mine had Laser 75 and old Rhoms with oleos.

Ensure the washout not "pulled out" when you sheet the wing, put the CG in the place shown (mine was 1/4" further forward) and you will have a sweet flying bird.

Enjoy building & flying, keep your tail up.

Regards,
wurger

Oryx

Thanks Wurger

I am planning to use the Unitracts mechanical retracts with oleos. So far I haven't heard anything bad about these retracts (except maybe that they are a bit on the expensive side).

I was thinking of a Laser 80 (I don't think they make the 75 anymore), but even with the low profiles of the lasers it seems it will still be exposed a little. An alternative would be a 2-stroke - OS61FX or maybe even 91FX, as both can be fully enclosed inside, but of course they won't sound as nice. I guess I will still have to think about it a little....

Cheers
Ben

Chad Veich

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If you guys want vac formed radiators for the Taylor 109 drop me a note. Other accessories will be coming along as time permits. I'm not a manufacturer but I'm doing these parts for a friend who is building one and will make them available to others.

Chad Veich

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The door can be made to open also.

wurger

Howdy Oryx et al,

Yes you are right, the 75 is not made now. The 80 is far more powerful.
Brian does build light - over here we have a theory that his scales only measure ounces and that he believes there are 32 ounces to the pound.LOL.
I have no direct experience of Unitracts, although many over here (including a number in the Club I am in) use them. I have only used Rhoms (long gone) and Springair - I like the failsafe of no pressure, the leg locks down (I acknowledge the potential risk there could be a problem if you come down in the rough, though).

Good flying,
Best Regards,
wurger

Ham639

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Hey '109 guys,
I'm the friend that Chad is building some parts for. Is stuff is first rate! Mine is all framed up with Unitrac air gear and will be powered by a RCV .90. All I have to do is sheet the wing linkage for the flaps and ailerons
Chuck
p.s. Hey Chad What's going on with the Tiffie?

wulf190

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Ham, what is approximate weight with the engine so far?

Ham639

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Wulf190,
All up weight is 6 lbs. even. The Fus. is all done with tail mounted and scale tail wheel fork, Cowl and canopy (no Spinner). Wing with servos, no sheeting but with flaps and ailerons but does include retracts and wheels. I weighed the engine sereratley and added it in. Hope this helps.
Chuck

Chad Veich

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Thanks for the kind remarks Chuck. I'll bet I know why your weight does not include the spinner! I'll probably give you a ring in the next day or two regarding the Typhoon and your Platt Mustang. Regards to all.

Oryx

Chuck, I just reread your earlier post and noticed you said you are powering your 109 with an RCV .90. For some reason, I never thought about fitting a RCV in the 109, but actually that sounds like a great idea. I have no experience with them, but it seems in the 109 where the nose is not particularly deep, the RCV would be a very good choice.

Things are going very slow on my side, as my studies really have to take priority this year, resulting on my RC projects all being temporary put on hold. I expect you will be flying yours before I even get to planking I would love to see some pictures of your progress if you have a digital camera or scanner. If not, at least let us know how she flies and what you think of the RCV once you are done...

Ben

BernieG

Good post, was thinking the same, just had not taken the time to ask. Am curious about this engine, and how it will work on the 109, let us know, please.

Bernard

Ham639

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BernieG and Oryx,

I too have been stalled on this project this past summer, However the days getting shorter and flying limited to the weekends, I will get started again soon. I'll keep you posted on the project and also will post some pics soon. BTW, the RCV .90 is made to fit this airframe and will swing darn near a scale size prop!

Chuck

Oryx

Thanks Chuck. I am looking forward to hearing more about your 109. Maybe it will motivate me to get this darn thesis out of the way as quickly as possible so I can get going full-time with this project The RCV .90 is sounding more and more attractive to me also - I think I might just go with one...

Cheers
Ben

dorjes

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I too would like to build the Taylor 109 but cooling appears to be a problem. I wonder if isn't a good idea to purposely install an engine which does protrude from the cowling , to assist in cooling. Jeff Foley's 109 has the Moki head right at where the cowling would be and a hole in the cowling , and Pat McCurry's 109 has the head protruding from the cowling. Has anyone built the 109 and flown it with an enclosed engine?

Dorin Luck

Ham639

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dorjes,
Brian Taylor (the Designer) shows how to properly cool the engine one plans. His Lazer .75 was completely enclosed in the cowling.

Chuck

dorjes

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Chuck, does he show a hinged door for the inlet or extra inlet holes for the 109? Looks like he'd have to have more inlet area than scale.

Dorin

dorjes

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Chuck, there was a series in R/C Scale International on the Taylor 109 in 2001. Unfortunately I didn't get the issue detailing the flying of the finished planes. You might check with R/C Scale International via email to get some details of the flying of these birds.

Dorin

BernieG

Seems to me you are making a very common mistake. Problem in cooling is not much about inlet, but OUTlet, as the warm air expand in volume, and you need to have more volume of air going out than going in....

Brian Taylor's plan show all what is needed to do to not overheat an engine. Now, I can't tell you how it works, as mine is still in "kit" form....

Bernard