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| Large Engines Discuss Engines Used on Giant Scale Aircraft. Gas/Glow, as long as they're big! |
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05-25-2011, 06:51 AM
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Engine Testing Thread
There's been so much prop testing and exhaust testing in the past couple of years, that we thought it'd be best to consolidate the data into one location for easy reference!!!
 Let the posting begin! (I'll update each post with more data and videos over the next few days).... Last edited by TBrum; 05-25-2011 at 07:07 AM. |
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05-25-2011, 07:02 AM
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#2 | ||||||
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BBT
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I am: Trevor B
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Re: Engine Testing Thread
Mintor 220 on Mintor Cans
-----See all details and discussion here.... https://www.rccanada.ca/rccforum/showthread.php?t=95766 http://www.flyinggiants.com/forums/s...=48021&page=26 -----Videos of Mintor220 in action, search under Youtube user "trevorbrum" Brand new - on test stand... * Xoar 32x12 - 5900rpm
* Mej 30x13 (not the EvoL) - 6420rpm
* Mej 28.5x12 3B - 6640rpm * Mej 28x12N 3B - 6680rpm After first flight - static testing while engine was on 42% Slick * Mej 32x12 - 6110rpm * Xoar 32x12 - 6080rpm After a few more flights, engine tweaked, carbs set, off break-in oil on 42% Slick * Mej 32x12 - 6230rpm * Xoar32x12 - 6230rpm * Beila 33x12 - 5540rpm * Menz 34x12 - 5420rpm After ~25 gallons of fuel... * Mej 30x13EvoL: 6660 - 6720rpm * Mej 31x12EvoL: 6580 - 6610rpm * Mej 32x12: 6240rpm * Menz34x12: 5450rpm * Beila 33x12: 5550rpm * Mej 28.5x12-3B: 6830rpm Qualitative opinion of props after flying with them (ranked in order of best to worst).... *Mej 30x13EvoL (best spool-up, great bite, not quite as much thrust as 32x12's but insane performance on 46lb plane!!!) *Mej 32x12 (insane thrust, very good spool-up, twitchy in a hover, almost too much prop for 46lbs!!) *Xoar 32x12 (same feel as Mej 32x12, only a bit louder) *Biela 33x12CF (slower spool-up than 32x12's, a hair less thrust as 32x12's) *Mej 29x12N 3B (good spool-up, but a big drop in thrust over the 2-bladers, still loud!!) *Menz 34x12 wood (similar feel and RPM as the Beila 33x12CF, motor got quite a bit hotter, ground clearance issues) *Mej 28.5x12 3B (a bit better than the 29x12N in terms of performance - still no where close to the 2-bladers) Last edited by TBrum; 12-30-2013 at 03:30 PM. |
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05-25-2011, 07:03 AM
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#3 | |||
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BBT
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Re: Engine Testing Thread
3W110CS on Pefa Cans:
Out of the box (first run), the 3W110CS ran 5880rpms on a Mej 28x12
Last edited by TBrum; 05-28-2011 at 09:06 PM. |
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05-25-2011, 07:06 AM
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#4 |
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BBT
★ Site Supporter ★
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Re: Engine Testing Thread
DA170 on RE3 Tuned Pipes
After countless gallons on Jack Marcotte's DA170, at MaidenFest 2011, we saw the following: Mej 30x13EvoL: 6250rpm Last edited by TBrum; 05-28-2011 at 09:08 PM. |
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05-25-2011, 07:09 AM
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#5 | ||||||||||||
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BBT
★ Site Supporter ★
I am: Trevor B
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Jeti # of RCs: 10+
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Re: Engine Testing Thread
3W220CS on KS1090 Tuned Pipes
Pictures and weights found on post #250 and onwards... https://www.rccanada.ca/rccforum/show...104702&page=25 Thread on FG found here.... http://www.flyinggiants.com/forums/s...t=63587&page=4 Brand New - on test stand... * Menz 34x12 - 5640rpm
* Beila 33x12 - 5640rpm
* Fuchs 34x12 - 5370rpm After 1.5 gallons, on 32:1 mineral oil and some needle tweaking...* * Fuchs 34x12 - 5590rpm * Fuchs 35x10 - 5790rpm * Beila 33x12 - 5870pm * Menz 34x12 - 5850rpm After 8 gallons, Amsoil 100:1 and lots more needle tweeking... * Menz 34x12 - 5850rpm * Fuchs 34x12: 5610rpm * Fuchs 35x10: 5800rpm Qualitative opinion of props after flying with them (ranked in order of best to worst).... *Fuchs 35x10 (best spool-up, great bite, easy to rip above 1/2 throttle but can be flown very quiet also) *Fuchs 34x12 (quietest prop, not the same bite as 35x10) *Beila 33x12 (no the same bite as the Fuchs props, prop rip above 3/4 throttle) *Menz 34x12 (least bite of them all, very loud even when not ripping, buy lightweight) Video Back-Up * Above tested motor mounted on 58% Pitts
* Same Set-up on a 59lb Edge in Europe...
Last edited by TBrum; 12-30-2013 at 05:41 AM. |
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05-25-2011, 07:11 AM
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#6 | |||||||||
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BBT
★ Site Supporter ★
I am: Trevor B
Join Date: Nov 2006
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Re: Engine Testing Thread
3W112CS on KS1055 Tuned Pipes
Pictures and testing starts on Post 193 of this thread... https://www.rccanada.ca/rccforum/show...118195&page=20 On test stand, 32:1, brand new....
Fuchs 28x10: 7080rpm Beila 2810: 5580rpms Vess 28B: 6480rpms Menz 28x10: 6260rpms
Post 359 of this thread, after 2L of fuel, on test stand https://www.rccanada.ca/rccforum/show...118195&page=36 Run-Up #1: * Mej 28x12: 6030rpm * Mej 29x10: 6060rpm * Mej 30x10: 5720rpm (this is a huge prop!!) Run-Up #2: * Mej 28x12: 5980rpm * Mej 29x10: 6000rpm * Mej 30x10: 5580rpm
Last edited by TBrum; 05-28-2011 at 11:11 PM. |
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05-25-2011, 07:12 AM
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#7 |
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BBT
★ Site Supporter ★
I am: Trevor B
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Re: Engine Testing Thread
DA85 on KS1090 Tuned Pipe
Test thread on RCC found here... https://www.rccanada.ca/rccforum/show...highlight=DA85 Data found in FG here... http://www.flyinggiants.com/forums/s...highlight=da85 Highlights of RCC prop testing on test stand... - after only 7 tanks of 24 Oz of fuel (and still running 32:1) Conditions that day: * Temperature = +2°C * Partly Sunny with a nasty wind * Max RPM was taken for a 6 second duration (don't want to overheat it!!) * Tested on my engine stand * Ignition battery is Fromeco 7.4V with Smartfly ignition regulator (5.2V) * Fuel = 91 Octane with 32:1 Pennzoil Air Cooled Oil * Tested JTEC Pitts High Volume and KS1090 Tuned Pipe with "?" Flex Header. * Sound levels taken at 25 ft Xoar 26x10 Sword: Idle = 1520 rpm JTEC High Volume Max = 6380 rpm @ 102 db (very loud) KS1090 Max = 6780 rpm (exhaust quiet but insane prop ripping noise) MenzS 27x10: Idle = 1520 rpm JTEC High Volume Max = 5950 rpm @ 94dB (but sounded quite loud) KS1090 Max = 6580 rpm (still very loud - prop was ripping also) Mejzlik 27x10 CF: Idle = 1520 rpm JTEC High Volume Max = 5910 rpm @ 96dB (but sounded quite loud) KS1090 Max = 6610 rpm (loud prop noise, but not ripping) Vess 28B: Idle = 1420 rpm JTEC High Volume Max = ?? rpm (too big of a prop for this exhaust) KS1090 Max = 6310 rpm (nice and quiet - a bit of prop noise) Mejzlik 28x10 CF: Idle = 1340 rpm JTEC High Volume Max = ?? rpm (too big of a prop for this exhaust) KS1090 Max = 6520 rpm (very quiet - little prop noise - all exhaust sound) Mejzlik 25x12 CF 3-Blade: Idle = 1200 rpm (we had it down to 870rpm though!!!!) JTEC High Volume Max = 5540 rpm @ 96 dB (all exhaust noise) KS1090 Max = 5990 rpm (very quiet - little prop noise - all exhaust sound) Last edited by TBrum; 05-28-2011 at 10:08 PM. |
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05-25-2011, 07:13 AM
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#8 | ||||||
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BBT
★ Site Supporter ★
I am: Trevor B
Join Date: Nov 2006
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Re: Engine Testing Thread
ZDZ180 w/ muffs & RE3 Tuned Pipes
Weight comparison (start on pg 93).... http://www.flyinggiants.com/forums/s...t=58122&page=4 Brand New, on mufflers, 32:1 oil, on test stand... * Mej 30x13EvoL - 6330rpm
* Mej 32x12 - 5670rpm * Fuchs 34x12 - 5180rpm
Last edited by TBrum; 05-28-2011 at 10:19 PM. |
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05-28-2011, 09:14 PM
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#9 | |||
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BBT
★ Site Supporter ★
I am: Trevor B
Join Date: Nov 2006
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Re: Engine Testing Thread
3W210CSTS on Pefa XL150 Cans
Pictures and weights found on post #128 with details.... https://www.rccanada.ca/rccforum/show...104702&page=13 After 2 gallons of 32:1, on test stand... * Beila 33x12CF = 5450RPM (Mintor spun 5600) * Menz34x12 = 5400RPM (Mintor spun 5600)
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05-28-2011, 11:15 PM
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#10 |
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BBT
★ Site Supporter ★
I am: Trevor B
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Re: Engine Testing Thread
There.. all of the above motors have been updated with the data, any links and videos to support the data!!
Wingburner - please add in details for DA120 and DA200 and anything else you have!! Same goes for anyone else for any motor!! Cheers Trevor |
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