ernie58

My Feedback: (15)

I have a Brison 2.4 looking for a home. Is it enough motor for either the WM 300 or the DP 330. I'm not into heavy 3D, but would like to learn to hover. Searched the sight. Lots about BME/ZDZ but little on the Brison. Please help?

Geistware

My Feedback: (16)

I have a Brison in a GP Giles and it flies great. It has about 100 flights on it and still keeps purring. I am finding that my mixture is changing. I have had to richen the idle about 1/4 turn. I now need to adjust my HS mixture but this is good for as many flights as I have. I would recommend the WM due to the bigger wing area. (If I looked at the right data).

RCP57

My Feedback: (25)

I don't feel that a 2.4 is big enough to fly either plane with authority. I have a DP 330L that had an FPE 2.4 and it flew it poorly. It simply did not have the hp to get you out of trouble or do any aerobatics, unless you call flying the standard oval pattern a challenge. And talk about vertical, what vertical? Mine could not pull more than 250 feet without falling on its face with a 20x10 MenzS. I also tried an 18x10, which picked up about 500 rpm but it still fell on its face. The aircraft has too much mass for that small of a motor. I purchased a 3W-50 for it but I have not flown the plane with the new motor yet.

If the WM airplane has more wing area that the DP then I would suspect the performance to be worse. More mass to tote around in the sky, but then again the wing loading would be less. Either way I know the engine is inadequate for the DP and I have no experience with the WM aircraft.

Geistware

My Feedback: (16)

RCpilot77084,
You should have tried a 20x8, 20x6-10 or a 22x8 on that plane. You should have seen a marked improvement in performance.

Vince

My Feedback: (1)

Personally I feel the Brisson and Fox 2.4's are more powerfull than the FPE 2.4. My Fox 2.4 on my Sig Sukhoi flies it with authority at 17lbs.

Vince

Bryant330L

My Feedback: (126)

I had the DP Extra with a Brison 3.2 and it was a perfect match in my opinion. I had a 22-8 zinger on it and it was a great combo. I agree that a 2.4 would not be enough motor to fly this plane with any gusto... I now have a midwest Extra with a Sachs 3.1 and it too is a great flying plane. If you like to fly mildly and do not care about performance you might be ok with it in a plane of this size but if you are looking for all out verticle you will probably have to go down in size and weight a little bit to a 1/4 scale like Geistware has done.

RCP57

My Feedback: (25)

Judging from that statement you have very little if any experience with the FPE 2.4 engine. Mine did not have enough hp under a load for the DP 330L. Marked improvement in performance? OK Rocky, now watch me pull a rabbit out of my hat. The 20x8 had NO improvement in performance when trying to drag the DP vertical. A 22x8 would have loaded that engine so badly it would have killed the vertical completely. Theory is fine in a laboratory, but what happens in the real world sometime is completely different. The best vertical and performance was with the 18x10. But like I said, it was poor.

xtraflyr

My Feedback: (11)

Ernie58
I have a little os160fx in my DP Extra w/18x6w APC and it will go out of sight in verticle,this little glow motor has 3.3bhp@10,000 rpm.It'll hover alittle over 1/2 throttle. The 2.4 should be plenty of power for what U want to do..I'm not a 3d guru but it'll waterfall and elevator and harrier with the160 os...
SEE YA
Frank

sirmombo

RCpilot77084

Sounds to me like you either had a very poorly adjusted carb on your FPE 2.4 or some other problem. A 20 X 8 or 18 X 10 is much too small a prop for that engine. I am getting around 7400 rpm with a 20 X 10 on mine. I am about to try a 22 X 8 on it. I have it on a 15 pound plane and it will put it vertically at half throttle. At full throttle it accellerates vertically. The FPE should have slightly more power than a Brison or Fox.

On_Final

I intially had a OS1.60 on my DP Extra but swapped it out for a Brisson 2.4. Had my first flight a couple of weeks ago on the Brisson turning a Menz 20X8. Plane balanced at 6" with the Brisson without any additional weight. (Had close to 10oz of lead in the nose with the OS1.60) I have my elevator servos (Fut 9151s) on the tail. Performance was OK but not enough for 3D. Could be that the engine is not fully dailed in yet.

Anyway, first flight ended in a dead stick too far down wind, a bent landing gear and a busted prop. Apparently, the vent line in the gas tank got turned around facing downwards and what I thought was a full tank of gas was actually only a 1/4 tank.

Everything is fixed up good as new now. Waiting for another prop to fly her again.

RCP57

My Feedback: (25)

sirmombo

Please, I don't know what your tach is smoking but would you send me some. The Brison, 3W, Fox, ZDZ, BME, and Taurus all make more power than the FPE, but they may not be as pretty. I know of five FPE 2.4 engines here in Houston and NONE of them turn over 6,200 rpm with a 20x10 MenzS. Two with the stock ignition and three with the CH ignition. Both Kurt (you know the guy who makes these engines) and the guys at CH have been following this type of post where people claim outrageous rpm numbers. Both say BS, and they have never seen those numbers. That engine would have to make 4.63 HP to turn the numbers you claim. It barely makes over 3 hp according to Kurt. The engine does not make that kind of power, period! One local guy just received his back from Kurt with the new hub and CH ignition where Kurt claimed all he could get was 6600 rpm. Better check you tach, eyes, glasses, sun dial, because it ain't happening. BTW any decent gas engine is easy to tune, even a FPE 2.4

Geistware

My Feedback: (16)

What propeller are you using?
Try an APC or Menz Ultra.
If you are not getting 7000 on a 20x8 then you have something wrong. Try advancing your timing a little.

RCP57

My Feedback: (25)

After reading your last post I know you have NO EXPERIENCE WHATSOEVER with the FPE 2.4 engine. This engine has fixed timing with the stock ignition. Even with the CH you don't have the ability to adjust the timing unless you have the software that CH uses. CH "power tunes" engines when they install their ignition on any engine. Now if you would like to know what props are being used it might be helpful if you go back and reread my posts in this thread. BTW I sold mine and will never purchase another.

Both the APC and Menz Ultra props will give you more rpm but your downline breaking will suffer tremendously. In an aerobatic airplane you need the breaking for some maneuvers besides keeping the airspeed down during downline flight. Can you say flutter? Besides we have been talking about MenzS 20x10, 20x8, and 18x10 sizes.

Geistware

My Feedback: (16)

RC,
Not to keep contradicting you, but you can adjust the timing. Contact C&H and they will tell you how to set up their electronic ignition. The advance is a fixed 26-28 degrees but you do adjust the set point. It is not like the Brison which is a mechanical advance. If you adjust the timing on your FPE so that it idles at 0 BTDC, you may be cheating yourself out of a little top end. If you adjust it for about 2-3 degrees BTDC at idle, you may find starting a little harder, but you should get more top end.

Geistware

My Feedback: (16)

As far as braking is concerned. Throttle management will be a major factor in the upcoming contest year. While different propellers will give you different braking characteristics, good throttle management will minimize this impact. I presently do know of any plane that at idle on the downline will have induced flutter on the control surface it the aircraft is built to manufacturers specifications.

mr. rc

stick with a 1/4 scale plane,sig extra,lanier 540t, if you want a rocket put it on a lanier 300 1/4 scale arf, after you put flying wires on the tail

Mike Wiz

My Feedback: (2)

I've owned 2 of the little Brison 2.4s in the past. It's a fantastic little engine! It may not be the latest and greatest, but mine certainly were dependable and quite powerful.

I can no longer remember RPM numbers with definite certainty, but I believe mine would swing a Mejzlik 20x10 at about 7200 rpm. This was enough power to torque roll my 14 lb 4 oz Troy Built Staudacher. It wasn't enough to do all of the other high alpha stuff, but that was never my intent.

Personally, I don't think the Brison 2.4 has the right power to weight ratio for a serious 3D plane.

Wiz

Three

My Feedback: (2)

I have the FPE 2.4 on a Sig 300xs. I have the Ch ignition upgrade from Kurt and I'm turning a disappointing 6400 w/ 20x10 Pro Zinger. It turned 6100 before the upgrade. I barely have unlimited vertical. I've seen this motor on a DP Extra, A trainer has more vertical than that combo. Say what you will about what it's supposed to do, I know first hand what it will do. By the way, I'll take whatever it your tac is smoking too. 7400. Please.

Geistware

My Feedback: (16)

I expected more than that fro the FPE series of engines.
Thanks for the warning.

drandles

My Feedback: (8)

I had a 2.4 Brison on my DP330L. It pulled it but not with authority. I replaced it with a Brison 3.2 and now it shoots up vertically like a bottle rocket.



Dale

Danny Ray-RCU

When I bought my 2.4 Brison it came with a tag that said 7320 rpm with 20x8 pro Zinger.I never could get that even after 5 gallons thru it. I called brison and talked to the man that does the engine running and tuning not a sales person. He told me they run ALL engines WITHOUT mufflers and that is the reason they get good numbers.A20x10 on any 2.4 is too much prop.If I bought a 2.4 from FPE and it would only turn 6400 on a 20x8 I would be calling them so fast Bellsouth couldn't keep up.Sounds like you need to stop and get some help or send the engine back. I have 3 2.4 engines and my FOX 2.4 is without a doubt the baddest strongest meanest best crankin best lookin 2.4 out there! Standard Zinger 20x8 7500 rpm! Pro Zinger 20x8 7800 rpm! Brison 2.4 standard Zinger 20x8 6900-7000 rpm but it is very dependable and easy starting. Good luck

Grommet

My Feedback: (1)

I managed to get over 7000 rpm from the FPE 2.4 with a Bolly 20x10 prop and nearly as much with a 20x10 APC. With the wood 20x10 props, (I tried Moki, Pro Zinger and Menz) the max I could get is around 6700.

My engine now 2 years old and runs better than ever.

However, I run a BME 50 on my DP Extra......I agree with the earlier comment, the DP has 'mass' (drag) which makes it soak up power at times.