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Old 04-14-2012, 02:37 PM
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DA100 with canister and 28x10 for 3D flight?

Hi all!
This is my first post here. First, congratulations to all users and admins for this great forum! Also, to apologize for my English. I am Spanish and it is not perfect.
To finish my presentation , My name is Rafael and I Have 17 years old

Well, my question is about my da100. It is the normal version, not L.
Right now I use a 28x10 menjlik carbon and KS canister. The engine give 6250 RPM. żIt's ok or is poor?
Hoewer I can see a slow response for 3D flight.

Should first try with another prop or directly change the canister for a standar pitts exhaust ?

Here I post a video so you can see how the 3D engine in flight.

Thank you very much !
Yak 55sp EG aircraft DA100 - YouTube
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Old 04-14-2012, 03:22 PM
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Hi,

If you go to a smaller prop like a Mejzlik 27x10 or 26x12 you will see better throttle response as well as more thrust. May I suggest a Falcon 27-10 or 27-11 carbon... They are super light and imo the best props right now. If you want even more response you can switch your canisters to Pro-Flow canisters or just go straight to standard mufflers which would give you the best response. Good luck.

Vic
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Old 04-14-2012, 04:53 PM
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Hola rafael! Welcome to flying giants!

I would buy a pro flow canister and switch to the falcon 27x10 or 27x11

The pro flow will make your engine very smooth. The falcon propellor should inncrease your response and it will probably have more pull or authority in 3D menuevers.

Pro flow: http://www.planebenderproducts.com/page1/index.html
Prop: http://www.falconpropellers.com/prod...-fiber/page/2/
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Old 04-14-2012, 05:03 PM
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Use a quality lighter loading prop (10 pitch or less) that will turn 6500+ static and you wil have better punch out and throttle response.
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Old 04-14-2012, 05:40 PM
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I would agree in the general direction of the past posters. I have an older DA-100 and ran a pair of KS cans on a Menz 27x10. Great set up for IMAC but not so much for 3D. There was a dead spot about 1/2 throttle that kept from having a good hover and punch out. Took the cans out and went to standard DA mufflers and the difference was night and day. Much more noise but much more power and transition around mid range.




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Old 04-14-2012, 07:44 PM
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That dead spot is exactly why dave invented the pro flows haha.

So rafael, its now just you, its a common issue for those with your setup, aparently. So its mostly your cans, and maybe the engine is a tad over propped
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Old 04-14-2012, 09:05 PM
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I have an older DA-100 with MTW 75 cans and flex headers with a Menz 27x10 and there is no dead spot in my whole rpm range. I fly at 2500 feet above sea level. I have tried most carbon and wood props but i have not tried the Falcon props. I would recomend a 27x10, it seems to be sort of the standard or benchmark prop for these engines. If your at sealevel you might use a 28x8 but you will get much better throttle response and acceleration and total rpm with the 27x10 but my opinion is the 28x10 is too much prop, especially for 3D flying. Try a 27x10 if you have one available to try. I think any 27x10 would perform better than any 28x10. Just my two cents worth.
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Old 04-14-2012, 09:14 PM
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I just ran my new setup on my da100 today. I have re2's with 11.5 inch headers and a vess 27 A . SMOKIN" combo !! No dead spots ( I was inticipataing a small one in the mid ) Super smooth with no throttle curve. Very suprized about that. My 150 needed a pretty big one to make it smooth. Power is very good, it's on a h9 extra 300 planes around 29 lbs. Flys it really well. It's a touch loud on wideopen level passess but other than that it's sweet !
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Old 04-14-2012, 09:19 PM
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Pull them cans and grab a pair of K&S 1060 pipes and 11-12" Headers and hang on.. My 3W-106 on 12" headers and K&S 1060's would turn a Mej 28X10 at 7100rpm on the ground and punchout from hover on a 28lbs Extra would make you question the integrity of the engine box ...

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Old 04-14-2012, 09:22 PM
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Extra 260's are my favorite.
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MTW's work pretty sweet. I just took my cans off and put re's in but havent flown it yet. Its in my Hangar 9 35%260. I had to hack some wood out to make them fit though. But its all good. I'll reinforce it accordingly. BTW my cans are for sale in the swap shop and on the home page as of an hour ago.
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Old 04-14-2012, 09:25 PM
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ES composite pipes work well too, and they only weigh about 4oz's a piece
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Old 04-14-2012, 09:38 PM
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+1 on the ES.. I have a ES55 on my 3W-55Xi in my Pitts Bulldog.. Excellent working pipe and light..

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Old 04-15-2012, 09:39 AM
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Hi , again!.
Thanks for help.
Exactly, i have a dead spot about 1/2 throttle and a slow transition but before changing the KS canister for other or pitts i want test with another prop.
In Spain I do not know where to find the falcon propellers but I can use other brands like menz, Hawk, vess (Wood) ...
A shop in Spain, AXARMODEL, they can lend me the 28x8 or 27x10 to test if it improves the transition.
When I do more tests, I will discuss what happened.
Thank you very much again!
Good flights!
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Last edited by culebreitor; 04-15-2012 at 09:44 AM.
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Old 04-15-2012, 09:48 AM
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a pic of the plane!
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Old 04-15-2012, 11:25 AM
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Sharp looking plane!

A Vess prop would be very good on the 100. Maybe a 27B or 27A.

And you will definately need to ditch those cans and just go with Pitts or a Pro Flow.
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