RE: DOminator 1500  
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RE: DOminator 1500 - 10/21/2006 3:24:02 AM   
glowplug50


 

Posts: 154
Joined: 2/28/2006
From: Houston, TX, USA
Status: offline 		Thats great, like I said, the plane looks like it would be a lot of fum. If you expect to have a lot of competion don't, If you are not willing to travel then racing opportunities will be very limited. I think I will still build the plane, but not with the expectations of racing.
And in answer to your response on the entries to the Dominator class, how many?
Even if there was a full field of 5, thats a pretty limited group

(in reply to MFLOOD3800)
       Post #: 26

RE: DOminator 1500 - 12/17/2006 4:46:05 AM   
WMB


 

Posts: 730
Joined: 10/5/2002
From: Great Falls, MT, USA
Status: offline 		I have also been interested in this combo for some time. Not to race, just have fun. What am I doing wrong in calculating speed? I came up with 96mph doing the math with 12"pitch and 8500 rpm.
Thanks, MikeB

(in reply to MFLOOD3800)
       Post #: 27

RE: DOminator 1500 - 12/17/2006 11:55:10 AM   
glowplug50


 

Posts: 154
Joined: 2/28/2006
From: Houston, TX, USA
Status: offline 		I had the same answer, I don't know how they are getting 130mph out of this combination. Perhaps JATO assist?

(in reply to WMB)
       Post #: 28

RE: DOminator 1500 - 1/4/2007 5:47:07 AM   
TEAMERICA



Posts: 271
Joined: 9/9/2002
From: Hesperia, CA, USA
Status: offline
quote:

ORIGINAL: DMyer

On the same subject.... if all the dimensions of a Lanier 1500 dominator are followed.... are airfoils. moments etc allowed to be modified?


DMyer - The rules are pretty clear on that subject

quote:

Lanier Dominator 1500 built from a Lanier manufactured kit or built to kit dimensions. Templates will be provided for Wing, Fuse and Tail dimensions. The intent is to build the kit to the plans, this would mean things like putting the control linkage inside the fuselage or wing, would not be acceptable. The only allowable exception to the 1.5 inch prop hub, would be to allow a 3” optional spinner to make larger starter cones compatible.


If your airfoil doesn't fit the template, you must have modified something. You are disqualified!
If your fuselage doesn't match the dimensions of the kit, you must have modified something. Don't show up trying to beat someone with rule bending. If it doesn't say you can - you can't


This is an entry level class to get new Giant Scale Racers acquainted with the physics and procedures of this category of racing. It is not the end goal. There is no glory in being the "Dominator Champion". the glory will come when you graduate to the "Scale" Classes and do well there. If you win in the Dominator class you are doing well. You will get a trophy and maybe an engine. But you gain alot of real hands on experience at Giant Scale Racing and might feel a little more comfortable when you build that Formula 1-GT or Biplane which are the next most likely classes to transition to.

If I were traveling across country to race a plane, I wouldn't want to be aced out at the tech inspection because I thought I'd be smart and bend a rule. I would rather be SURE that my plane fits the rules and win fair and square. It's alot easier to build to the plans than to second-guess the tech inspector.

The rules also say:

quote:

INTENT

To provide a low cost “entry level” Reno style racing event for new pilots. Dominator racing is not intended to water down participation in USRA giant scale classes, but to provide a less expensive means of introducing “new “ racers to our exciting giant scale racing. The intent is to only allow new pilots and those that have not raced giant scale racing in the past two years of a scheduled Dominator race.


The last sentance has recently been overlooked in order to guarantee a class. There were 8 entries in Dominator at the last Parker race and it was won by a pro racer so don't expect to take home a trophy your first race. If you do that is great. But the experience you gained is well worth the effort and you will be getting it along side the more experienced racers. This year's Dominator "Champion" is also last year's Biplane World Champion. If you can just stay in his groove you are doing something.

Come for the fun - Stay for the excitement. Then come back with more practice and something faster.


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Logic will not be tollerated!
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(in reply to DMyer)
       Post #: 29

RE: DOminator 1500 - 1/4/2007 6:03:24 AM   
TEAMERICA



Posts: 271
Joined: 9/9/2002
From: Hesperia, CA, USA
Status: offline
quote:

ORIGINAL: glowplug50

I had the same answer, I don't know how they are getting 130mph out of this combination. Perhaps JATO assist?

Don't you know 130 is racer-talk for 96MPH. Never believe what a racer says he can do.
No matter what he says he can do or even if he can really do it - the proof is on the course and at the finish line. There are many "Worlds Fastest airplanes" that have never seen the starting line let alone the Finish line. In Giant Scale Racing you have to meet the Finish line 6 times in a row. First or last, but it has to be 6 times with no cuts. The only time it counts is the 6th time (Trophy Race). The only guy that remembers who took 1st in Heat #3 is the guy that took 2nd. And you are now in his sights.

Giant Scale Racing is a blast and fast is nice but my advice would be to practice your skills and concentrate on making your airplane and crew reliable.

_____________________________

Logic will not be tollerated!
Revver Brotherhood #141

(in reply to glowplug50)
       Post #: 30

RE: DOminator 1500 - 1/4/2007 6:41:50 AM   
HighPlains


 

Posts: 2637
Joined: 3/2/2003
From: Over da rainbow, KS, USA
Status: online 		You can't use ground rpm to figure airspeed. Every engine unloads to some degree, the amount depends on engine timing and how clean the airframe is.

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"Pay no attention to the man behind the curtain"

(in reply to TEAMERICA)
       Post #: 31

RE: DOminator 1500 - 1/4/2007 11:22:18 AM   
glowplug50


 

Posts: 154
Joined: 2/28/2006
From: Houston, TX, USA
Status: offline 		Well, ground rpm is an important calculation. If the formula is correct then under perfect conditions with an airframe with no drag at all. the results should be at least as good as the answer plus the bonus of unloading in the air.
But since we do not have a ghost aircraft instead we do have drag, then the original calculation will be considerably slower then anticipated. You still get the bonus unload but doubt serioulsly its going to be another 30 plus mph.

(in reply to HighPlains)
       Post #: 32

RE: DOminator 1500 - 1/4/2007 3:05:37 PM   
HighPlains


 

Posts: 2637
Joined: 3/2/2003
From: Over da rainbow, KS, USA
Status: online 		Well Dick, ground RPM is a measurement for most of us. Not really sure what you are trying to say in the rest of your post, since I lost the ability to decipher Texan many years ago.

Whether or not the Oxymoron 1500 is able to reach 130 mph based on calculations is moot, since they seem to have been measured doing that in the air. Since they only allow one design in their "racing" class, I don't see how it can really be call a "Dominator".

I'll leave you with a quote by a prop manufacturer -

"A propellor is not a screw going through cheese."

_____________________________

"Pay no attention to the man behind the curtain"

(in reply to glowplug50)
       Post #: 33

RE: DOminator 1500 - 2/3/2008 4:46:31 AM   
Doc.316


 

Posts: 102
Joined: 11/22/2007
From: Wichita, KS, USA
Status: offline 		Hello;
Ok...my dominator with the Moki on it will turn 9200 peaked...around 9000 continous...(you have to run a BUNCH of fuel through it....it is one of the oldest ones in a dominator and maybe the oldest dominator that has been raced)....and yes they will do 135 straight and level with a good prop. We have been playing with them since the first race and actually helped pick the prop for the class since we did some testing with first the supertigre and then the Moki....and if you change the prop out to a 18x10....it will take off in less than 5 feet and is an extremely "fun" airplane just to fly...it will do 4 and 8 point rolls...stall turns (with a V tail?) ...etc... It does not ground handle well in crosswinds...(not enough ruddervator action and no steerable tailwheel)...but it can be taken to Big Bird fly ins... It does have a couple of problems...a few wings departed the fuselages (make sure you use slow set epoxy for the wing mount and pin the blocks per the instructions)! Also we had a bit of problems with the "door skins" delaminating in humid conditions. (The first race down in TX was very "wet" and we ended up flying in basically monsoon conditions...the ply didn't hold up real well...

As far as racing these..they are fun...but I hate to say that the class is dying...(well I have two of them)....I would like to see them hold on some more but I personally think the Sundowner class will probably take over as the "entry level" class. Well the dominator is a pain to build and an arf would appeal to more people...

Oh yea ...(BTW) I am the guy with the "pink" dominator...lol.

Steve

(in reply to HighPlains)
       Post #: 34

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