RE: Props-More Myths Busted  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> RE: Props-More Myths Busted
Page: <<   < prev  8 9 10 11 [12] 13 14 15 16 17   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: Props-More Myths Busted - 4/28/2007 8:26:32 PM   
PlaneKrazee



Posts: 3535
Joined: 5/15/2002
From: Westerly, RI, USA
Status: offline 		fbd,

you point out the attributes of the zinger 12X6 prop compared to a apc 12X6. It has been my experience that if you chose different APC props you would find one that would give better performance than the zinger, maybe a Apc 13X5 or 12X7 or 8. That said, I bought a 13X5 zinger and it was total junk. Rough finish and club like, a peice of crap. I bought a APC 14X4, cut the ends to make it a 13"prop and it worked great. I don't recommend cutting the apc's but it did work great. The apc 13X4 didn't work as well for my application as the cut down prop.

_____________________________

KB1DTB
AMA11123

(in reply to gkamysz)
       Post #: 276

RE: Props-More Myths Busted - 4/28/2007 8:41:45 PM   
PlaneKrazee



Posts: 3535
Joined: 5/15/2002
From: Westerly, RI, USA
Status: offline 		the bolly clubman looks like a exact copy of the apc 14X6 type shape but at .5 sizes

_____________________________

KB1DTB
AMA11123

(in reply to PlaneKrazee)
       Post #: 277

RE: Props-More Myths Busted - 4/29/2007 10:00:59 PM   
jaka


 

Posts: 4423
Joined: 12/11/2001
From: Upplands Vasby, SWEDEN
Status: offline 		Hi!
Modifying APC props (or any other plastic prop) is no big deal , just file away and let your imagination design it the way you like it (experience will tell you what works good).

Plastic props are as easy to modifye as wooden props! Don't be afraid to try it! But remember to balance the prop!

_____________________________

Jan Karlsson Airracing products
MVVS, Motul "Micro" all synthetic oil

(in reply to PlaneKrazee)
       Post #: 278

RE: Props-More Myths Busted - 4/29/2007 11:10:29 PM   
PlaneKrazee



Posts: 3535
Joined: 5/15/2002
From: Westerly, RI, USA
Status: offline 		Jaka,

The first APC i shortend balanced perfectly. I had to check my high point balancer after that one

I got very lucky on that one.

_____________________________

KB1DTB
AMA11123

(in reply to jaka)
       Post #: 279

RE: Props-More Myths Busted - 6/18/2007 2:47:00 PM   
Flyboy Dave



Posts: 13374
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: online 		I see the wait for the Big Comparison Test continues.

The Guys that have tried a couple props probably won't admit the truth....



< Message edited by Flyboy Dave -- 7/20/2007 4:10:39 AM >

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to PlaneKrazee)
       Post #: 280

RE: Props-More Myths Busted - 6/18/2007 8:05:58 PM   
proptop



Posts: 4464
Joined: 10/18/2002
From: Rome, NY, USA
Status: offline 		Dave...you must have set some sort of record (by now ) for holding your breath!

_____________________________

It's bad luck to be superstitious...
Revver Bro #77

(in reply to Flyboy Dave)
       Post #: 281

RE: Props-More Myths Busted - 6/19/2007 1:13:07 PM   
yallaair



Posts: 212
Joined: 1/1/2006
From: Floro, NORWAY
Status: offline
quote:

Dave...you must have set some sort of record (by now ) for holding your breath!


Help is on the way!

I've just ordered a set of Eagle tree logger. Will do some testing of engine temp, RPM and airspeed. The first tests will be carried out onboard a 40 size low wing airplane with ASP 91FS. We will do some extensive testing this summer up here in Norway!!!

However, results from this upcoming test can only give an indication on what prop will be the "best fit" for this specific airplane/engine/fuel/prop combination. It can not determine whether APC is best, or not. It will be "installation" specific whats best.... And whats best prop depends on what you are aiming for, 3D performance, acceleration, top speed.....

B.E

_____________________________

Darn the ground..... and the jumping trees

(in reply to proptop)
       Post #: 282

RE: Props-More Myths Busted - 6/21/2007 11:07:15 AM   
RUNDUCK


 

Posts: 21
Joined: 4/7/2007
From: AMARILLO, TX, USA
Status: offline 		I joined this web site for information and idea exchanges. I didn't know at the time that I would have to witness grown ups bickering and name calling. Shame on the moderator for being one of the worst offenders. Ban me from the site I don't care but I will not tolerate this attitude toward others.

< Message edited by RUNDUCK -- 6/21/2007 11:19:37 AM >

(in reply to yallaair)
       Post #: 283

RE: Props-More Myths Busted - 6/21/2007 12:11:07 PM   
Hobbsy



Posts: 10554
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: online 		Duck, your very first post on this site is informative, constructive, and will help a lot of people.

_____________________________

"I have gone faster backwards, upside down and on fire than most people have gone at all" Don Garlits

(in reply to RUNDUCK)
       Post #: 284

RE: Props-More Myths Busted - 6/21/2007 4:17:09 PM   
blw



Posts: 4521
Joined: 3/15/2004
From: Auburn, AL, USA
Status: offline 		Runduck:

quote: I joined this web site for information and idea exchanges. I didn't know at the time that I would have to witness grown ups bickering and name calling. Shame on the moderator for being one of the worst offenders. Ban me from the site I don't care but I will not tolerate this attitude toward others.




I agree that some comments have gone too far in the past. It is okay to have opinions that aren't shared by others, and members should feel free to post without being singled out for ridicule. This thread may need to be locked up if it keeps degrading to the point of insults being traded back and forth.

< Message edited by blw -- 6/21/2007 4:18:11 PM >

_____________________________

The ultimate responsibility of pilots is to fulfill the dreams of the countless millions who can only stare skyward...and wish.

(in reply to Hobbsy)
       Post #: 285

RE: Props-More Myths Busted - 6/21/2007 6:27:38 PM   
Flyboy Dave



Posts: 13374
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: online 		...there is a big difference between a spirited debate, and insulting someone. If a person
is so thin skinned they cannot handle debates and differences....a discussion Forum may
not be a good plaqce for them to hang out.


FBD.



< Message edited by Flyboy Dave -- 7/19/2007 6:44:26 AM >

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to blw)
       Post #: 286

RE: Props-More Myths Busted - 6/27/2007 6:34:39 AM   
Flyboy Dave



Posts: 13374
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: online
quote:

ORIGINAL: Flyboy Dave

....other than the obvious....

....I'm still waiting for the "Big APC Comparison"....which of course will never happen.
The reason is....the APC props, however effecient....are no better than any other prop
on the market. The fact is.....many newbee flyers accept out of hand the
statement that (somehow) APC propellers are "superior" to every other prop on the market.

This is digested as a common fact, when in fact the Noobs indoctrinated by the myths will
argue the elements of the debate....without any facts to back it up, in any way, shape or form.
They have been told this by the local (LHS) dude, and is accepted as Gospel.

Having tested not a single propeller in their lifetimes, these advocates will "parrot" the same
statements of their tutors.....without a clue as to what they are talking about.

The fact of the matter is.....APC props have become the preferred props in pylon racing....
especially in the .40 size....big whoop. This is because the props are applicable specifically
to the task. They work....and that's fine.

If you follow that to it's logical conclusion, and surmise that APC props are the best....simply
because they propell the little .40 size screamers (Nelson's, Jett's ) in the small racers category
you have missed the boat. The big racers.....the Unlimited and such....run almost 50 MPH
more than the smallish .40 size "Pylon racers".

The common misconception is.... especially propagated my Members like some Members is that
anything other than an APC prop is not worthy of flight.

There are are quite a few nice propellers on the Market. Anyone who thinks that the APC brand
is superior to the others.....hasn't a clue. The fact is, the APC's are quite ordinary.

FBD. (Still wating)


I'm reposting this post because the simple reason is....nobody will post the "Big Comparison Test ".

There is no test where APC props are any better than any of the many other props out there. Apc
props are quite ordinary, in fact. The exception is the pylon speciaty props.

There is one thing, my fellow RCU members must know....and this is 100% fer' sure....

....I really don't care what any other enthusiast uses for a prop on his/her aero-model. Take that
to the bank. Whatever prop works for you....that's fine with me.


This may well be my final statement on this subject in this thread....and this is my sincere opinion
whether you like it or not....and you can quote me on this....

....APC props are great for noise reduction. Other than that, the have no advantage over any other prop.

FBD.

< Message edited by blw -- 7/11/2007 12:10:14 AM >

_____________________________

An engineer says.... "That won''t work".
A mechanic says..."Oh yeah, watch this".
"Old Age, and Treachery will overcome youth and skill".
Revver Bro #4.

(in reply to Flyboy Dave)
       Post #: 287

RE: Props-More Myths Busted - 6/27/2007 8:18:16 AM   
XJet


 

Posts: 3346
Joined: 3/31/2003
From: Tokoroa, NEW ZEALAND
Status: offline 		I always choose my prop based on more than just its efficiency -- it's strictly horses for courses.

For example:

For my 46-sized funfly/3D planes I use nothing but APC 12x4. They're light (enough), very efficient and a great match for most 46-sized engines and the demands of 3D flying.

For my "beatup" 61-powered sport/trainer ship I use nothing but MAS scimitar props. They're pretty efficient and *really* tough so when I'm flying in a 20knot wind and duff-up my landing it doesn't cost me anything other than a bit of pride.

On my P51D mustang I use MAS K-series because when they "rip" in a low pass, they just sound *soooo* nice :-)

On my 50cc Extra I run an NX wooden prop because it's cost-effective and spools up faster than the perhaps slightly more efficient carbon-fiber alternatives.

Heck, when I fly RC combat I even use a good old nylon prop -- because you cant bust that sucker!

There is no "best" prop -- just props that are better for some applications than others.

_____________________________

When I'm not here, I'm at RCModelReviews

(in reply to Flyboy Dave)
       Post #: 288

RE: Props-More Myths Busted - 6/27/2007 8:39:53 AM   
Flyboy Dave



Posts: 13374
Joined: 3/20/2002
From: San Bernardino County, CA, USA
Status: online