12               USRA Provisional Class - LANIER DOMINATOR 1500

12.1           INTENT

To provide a low cost “entry level” Reno style racing event for all 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 Specifications are being developed to create a one plane and engine event that is relatively inexpensive with an emphasis on “entry level”.

12.2           SPECIFICATIONS

12.2.1                GENERAL - All pertinent AMA / USRA safety rules apply. Servos operating all control surfaces be of sufficient size with at least 69.5 in.oz. of torque.  A minimum of  200 mah battery pack per servo is required.  USRA engine safety cable is not required.

12.2.2                AIRCRAFT - Lanier Dominator 1500 built from a Lanier manufactured kit or built to kit plans. 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.  Marterial selection to be of similar material as supplied with the kit, for example, replacing ply with balsa is prohibited.  Skinned hinges and control surface wipers are not allowed.

12.2.3                ADDITIONAL AIRFRAME REQUIREMENTS

12.2.3.1            Landing Gear - Landing gear can be polished and rounded to a 3/16” diameter on the leading and trailing edges. Also, the mounting and wheel axle bolts can be replaced with other types of bolts, I.E. countersunk flat head bolts can be used for mounting the gear and Prather type wheel axles can be used.  In addition, the landing gear can relocated approximately 1 inch aft to give better landing characteristics on pavement.  Two 4” diameter main wheels and one 1 ½” minimum diameter tail wheel will be required.

12.2.3.2            Motor Mount - The stock motor mount will not fit the nose of the Dominator, so here are options: A flat back plate mount of aluminum, 3/8” thick, which can be rounded and polished on the front side. Other standard type rail mounts can be used, but must not add to the streamlining of the nose, I.E., no Foremost type mounts can be used.

12.2.3.3            Fuselage - The fuselage corner edges, firewall included, can be sanded to no more than a 1/4” radius. Firewall will not be less than 3 5/8” high and 4 3/8” wide, and at the trailing edge 4 ¼” high and 3 7/8” wide.  Fuselage at the leading edge of wing will not be less than 5” high and 4 3/8” wide, and at the trailing edge 4 ¼” high and 3 7/8” wide. Length of the fuselage from the firewall to the tip of the tail will be 60” long.

12.2.3.4            Wing - The wing chord (width) will be no less than 18”. Wing span (length) will be no less than 84”. Wing thickness will be no less than 2 3/32” for 80” of wing span.

12.2.3.5            Tail Assembly – The tail assembly will be no less than 15” from root to tip. Root width will be no less than 8” and tip width will be no less than 6”. Root thickness will be no less than ¾” and tip thickness no less than ½”.

12.2.3.6            Wing Mounting Bolts - These items can be replaced with other types of 1/4” metal bolts, I.E. a counter sunk flat head bolt can be used.

12.2.3.7            Spinner - An optional 3” spinner can be used in place of the 1.5” prop hub so that larger starter cones are compatible.

12.2.4                ENGINES - SUPER TIGER 3250, Dave Patrick 2.10, Mark 2.10, MOKI 2.1 or OS BGX-1 3500, in stock configuration.  No modification is permitted except with screws, bearings, glow plugs, gaskets, prop washers and prop nut may come from any source.  Any stock muffler that is cataloged for use on that engine. Tuned pipes are not allowed. The tank should be setup for muffler pressure.  Crankcase pressure, bubbles tanks, or bladder type tanks are not allowed.  Burden of proof is on the person using the engine to show that it is legal.

12.2.5                PROPELLER - APC 17x12 pattern propellor will be used and will be supplied by the race organizer. No modifications can be made to the prop. Shaft hole may be enlarged.  If balancing is necessary, material can only be removed on the front side of one blade.

12.2.6                WEIGHT - Ready to fly dry weight should not be less than 13 lbs, 12oz.

12.2.7                FUEL - Provided by event organizer. In addition, a fueling station will be provided to de-fuel and re-fuel aircraft before they are staged for racing. All aircraft must have a clear 1” x 3” inspection window in the top hatch so that the de-fueling process can be determined. If not, the hatch needs to be removed during de-fueling. The fuel blend will be 12% synthetic oil, 2% castor oil, 5% nitro and 81% alcohol.

12.2.8                RACE NUMBERS - Racing Number(s) 10 inches high are required on the top and bottom of the wing. The numbers on the top of the left wing should be readable from the top of the aircraft when the aircraft is in a left turn. Likewise the numbers on the bottom of the wing should be on the underside of the right wing and readable from the bottom of the aircraft in a left bank. There is no official assignment of race numbers at this time.

12.2.9                RACE COURSE - The standard 1600 ft. course is normally used for giant scale racing, however for smaller flying sites a 1200 or 1000 ft could be used. It is recommended that typical USRA race procedures be used. This information can be obtained via the USRA Internet site at www.usrainfo.org.

12.3           For more info, please contact:

Mike Tallman

3014 Exchange

Wichita, KS  67217

(316) 524-4004 or (316) 305-6241 or

Mike-tallman@webtv.net