Mel Asberry, DAR since the last century. "Yes, the propellers can be cut down in diameter. $1562. I currently have a 3-blade 74" Kiev prop. Propeller. I run a 66" Whirlwind 2 blade prop that was suggested by Pete when he ran Jab in the states. The forward bulkhead can be drilled for the 75mm, 100mm or 101. require the use of the 13mm (or 12mm for older models) drive-lugs. Warp Drive Inc 1207 Highway 18 E Ventura, IA 50482 Youtube Instagram Facebook-f. Their props are like art, very well made and their service support is fantastic. Warp Drive, Inc (6) WHIRLWIND propellers (7) Submit. . $13. ” Select the Right Boat. WhirlWind’s RZ GA Series propellers (ASTM certified) are designed for LSA and S. Warp drive is likely to damage the gears in a Rotax engine. 00 gearbox Bollypropellers: 70" three blade Warpdrive: 4-blade 64” Ultra-Prop II The Luga and Warp Ultra is around 600 eur and the others are double the price. All Warp Drive blades are solid carbon fiber, they are not hollow, they do not contain foam, they do not contain fiberglass, etc. $ 145. Made in the USA with US material. Pete warned that this would have too much polar inertia. Spinner is provided in a dull white finish, ready to be prepped and painted. Warp Drive Inc is an American manufacturer of composite propellers for ultralight aircraft, ultralight trikes, light-sport aircraft, amateur-built aircraft, gyrocopter, airboats and other non-certified applications. All propellers are manufactured in the USA using aerospace grade materials sourced from the USA. The mounting plate is drilled with a 75mm bolt pattern. From $205. I'm doing some prop adjustment on my Warpdrive prop using the Warpdrive protractor. $ 15. Warp Drive Propeller 3-Blade Standard Propeller "Shipping World-Wide" Call 1-251-609-0969 for adenine screw suggestion for your application. $374. Proprietary processes ensure a high. Because of the stiffness achieved by using carbon fibers, the prop will do very little coning (bending forward) under power. Territories & Quebec Call +1-251-609-0969 From Misc Countries World-Wide. Org > How to, How Not To, and Other Advice > Modifications > Warp Drive Propellers. These records are only used for internal company purposes. The usable range of pitch on a Warp Drive propellor is between 6 & 20 degrees at the tip of the blade. View Details. For example, if the hub-to-ground measurement is 45 inches, subtracting 9 inches will leave an effective radius of 36 inches. These drive-lugs are pressed into the propeller-flange on the 4-in (101. I am including here a pic of my warp drive prop The construction of Warp Drive's blades allows for simple repair of nicks and gouges that sometimes happen. Taking-off soon. Enertia. The Excalibur is an excellent upgrade for any 4 or 6 cylinder aircraft engine powered airboats, as well as direct drive automotive powered airboats. Order props in even numbered diameters, such 66″, 68″, 70″, 72″ ect. Warp Drive propeller 2-Blade HPL Propeller. Hub Faceplate. S. Warp Drive IncorporatedI run a 66" Whirlwind 2 blade prop that was suggested by Pete when he ran Jab in the states. WLIU. Norm . Proper fiber placement allows the prop to flex torsionally for maximum cruise. Convert degrees of blade pitch to inches of blade pitch. Because of the stiffness achieved by using. Warp Drive Guarantee & Guarantee Form Please Read Warp Drive Incorporated 1207 Highway 18 East Ventura, IA 50482 USA Phone: (641) 3576000 Fax: (641) 3577592 USA & Canada: 18008339357 made all of my adjustments with the Warp Drive prop protractor and was able to set the pitch of both blades within a two tenths of a degree of each other. It can additionally. Have pics • Contact Jim Becker, Owner - located Grass Valley, CA 95945. Choose an option Right Hand Rotation Left Hand Rotation. Stickiness to these total values is compelling to reasons von safety. I have a Sensenich 66x32 regular width wood prop that my direct drive 350 chevy spins at 3200rpm static on the trailer. Many of. Sterna Propellers Warp Drive, Inc. Distance from Prop Shaft to Pitch Station (In Decimal Inches, i. Warp Drive IncorporatedPresident at Warp Drive . Ultra-Prop (see Competition Aircraft) Warp Drive, Inc. I saw on Sensenich's wed site that the wood prop shouldn't be spun over 3000rpm but a couple different people told me that you shouldn't sustain over 3000rpm but that the prop wouldn't fly apart until 3500rpm. Clear leading-edge tape for each blade: LINK. Hoverhawk Corporation is a world-wide distributor for Warp Drive carbon fiber composite aircraft propellers, the new turboprop and offer factory-direct pricing and discounts to our customers. Warp Drive Incorporated 1207 Highway 18 East Ventura, IA 50482 USA WarpDriveInc. 00 Read more; 8-in Fiberglass Spinner $. 4-inch polished aluminum skull cap spinner. All books from beginning. Includes: (4) 5/16″ x 3-1/4″ bolts, (4) nylock nuts and (8) washers. It is NOT ACCEPTABLE to use the 75mm bolt pattern to mount a Warp Drive propeller to a Rotax 9-series engine. Well-known member. Propellor Science - 2-blade vs 3-blade - Google Groups. Adherence to these torque values is imperative for reasons of safety. Considering an inflight adjustable for the flexibility. 3/8-in Mounting Bolts. Warp Drive Inc 1207 Highway 18 E Ventura, IA 50482 Youtube Instagram Facebook-f. All props are ground adjustable. Complete Propellers; Components; Accessories; Downloads; FAQs; News; Contact; Replacement Blades. Clamping hardware for use with 2, 3 and 4-blade Standard hub. These drive-lugs are pressed into the propeller-flange on the 4-in (101. I had a 82 inch WW on my CH801 with O-360 180HP. It can also be used for a variety of applications such as wing surfaces, flaps, tail surfaces or anything needing to be measured in degrees. Warp Drive Incorporated 12 Highway 18 East Ventura, IA 582 USA WarpDriveInc. What are the design limitations for composite props, like powerfin warp drive etc. Read More » July 4, 2018. Warp Drive Propeller 3-Blade Standard Rotor "Shipping World-Wide" Call 1-251-609-0969 forward a propeller. Remove 3/8-inch propeller mounting bolts and faceplate (or. com KOLB FIRESTAR II • $5,000 • FOR SALE • Hydraulic brakes, A few holes in fabric, Rotax 503 DCDI, 3 blade prop, $2500 W/O Engine call for pic • Contact Shiloh Staib, Owner - located Bakersfield, CA 93311 United States • Telephone: 661-213-9080 • Posted November 21, 2023 • Show all Ads posted by this Advertiser • Recommend This Ad. This can be acheived easier than most would think if you start out your build thinking "lite". Warp Drive 4-Blade Airboat Propeller. *MMOI - Mass Moment of Inertia. SENSENICH PROPELLER COMPANY LOCATED IN PLANT CITY, FL. Warp Drive Advance Composite Propellers. Oct 2, 2010. Ultra-Prop Propeller Kits Each blade is moulded from a high strength glass-reinforced composite. I'd say that's accurate as well. 5-Blade Complete Propeller with OS Hub. For the Warp Drive machined shown here, the. Sensenich has incorporated an optimized composite lay-up to minimize “flattening out” under high thrust. I. This is an assembly of anodized aluminum plates and composite clamping blocks. Ultra-Prop; Warp Drive; Featured Product. . i called warp drive and they are going to rework the profile of the blades to try to fix the problems. A blade or two are less expensive to replace than gears in a Rotax. It has a Continental O-200 with a 3 bladed Warp Drive Prop set at 11 degrees. Breaux Bridge, LA. Kelly Kjellsen is the President at Warp Drive based in Ventura, Iowa. Warp Drive Advance Composite Propellers. Warp Drive Prop Protractor. The warp drive flies in the face of what we have long thought about as the crazy concept of warp speed travel: that it requires exotic, negative forces. (1) Replacement C Propeller Blade. Aug 24, 2005. Email. Warp Drive, Inc. Warp Drive propellers are fixed-pitch and ground-adjustable. View Profile View Forum Posts Join Date Dec 2004 Location Inkom, Idaho Posts 2,290 Post Thanks / Like In the experimental world, Warp is extremely highly regarded and has been for many years. Avionics & Instrumentation. Warp Drive propeller installations on direct-drive aircraft engines and other engines used on airboats must tighten the 5/16" clamping bolts to 200 inch pounds and tighten the 1/2" flange mounting bolts to 60 foot pounds. Measure the distance from the crankshaft to the ground and subtract 9 inches to allow for safe ground clearance. Includes (4) 1/4″ x 3″ bolts, (4) nylock nuts and (8) washers. Warp Drive Inc 1207 Highway 18 E. Thank you for your willingness to submit a testimonial detailing the experience you’ve had with your Warp Drive propeller, our customer service, or any product or service we offer! This testimonial will be used only for promotional purposes on the warpdriveinc. Now that I have a Kitfox that needs a prop I was thinking of using it due to everyone's suggestion to sh!tcan the GSC. $ 15. 00 Add to cart; 4-in Propeller Extension. This new prop features 20 percent more blade area for increased low end thrust without loss of snap. Warp Drives Advanced Composite Carbon Fiber propeller has a structural strength near that of metal propellers. com. Warp Drives Advanced Composite Carbon Fiber replacement propeller blades have a structural strength near that of metal propellers. Warp Drive 8-Blade Airboat Propeller. com Phone: 61 03-3 Operao Iallao Maal: Blae HP Page 6 01-01-3 Propeller AssemblyAvSport of Lock HavenI was curious what others have their pitch set at on a 3 blade warp drive prop. Well-known member. N. Pete warned that this would have too much polar inertia. Here we will consider the basic definition and. If you want the quietest and most efficient thrust propeller system, select a prop configuration (and reduction drive ratio) that will keep the tip speed for your cruise rpm at or below 700 feet per second or 475. The second type of hub is the HP Hub. 78 million in 2020 and expected to reach USD 506. " With a brand new 503, and a 235lb pilot in an ultrawhite Dominator, on a cool day I could maintain only about 100 fpm climb rate with a 60" Warp drive 2-blade prop. The Warp Drive Protractor is an economical device that accurately sets the pitch of your propeller blades to within 1/4 degree. Quick overview. Warp Drive Iorporae 1207 Higa 1 Eat Vera, IA 502 USA WarpDriveI. We exclusively use 2 blade, HP hub models. For use with the 2 blade and 3 blade HPL hubs. It was intended for an. WARP DRIVE PROPELLORS Carbon Fiber technology allows for the most advanced and efficient prop system on the market. Fits hub AP332. It does out climb my old Warp. 3. Aluminum. 00. WarpDriveProps. At any rate, might make sense to pitch it just a bit on the high side RPM wise. 6/:1 I have initially set the pitch at 11 degrees. Standard blades can be used on Rotax, Arrow, VW and. Warp Drive Propeller 3-Blade Standard Propeller "Shipping World-Wide" Call 1-251-609-0969 required a propellers suggestion for your application. Warp Drive Incorporated 1207 Highway 18 East Ventura, IA 50482 SA WarpDriveInc. A must for Float Flying. Used Warp Drive Propellers and Sheet for Sale !! Call to Request a Fan Make or Place an Order, Or Use. prop a bad review but have since did a little experimenting with pitch blocks and tightened the belts on the reduction drive and give this prop 5 stars. I am not sure if the originals were cut or not as I bought this plane used. $ 130. 2L engines and up require the Warp Drive HP hub and HP blades, direct-drive or with a reduction drive (PSRU). 6mm) bolt hole circle locations. The space agency isn’t building an engine that can approach the speed of light—yet. Because of the stiffness. 55 to $445. All Warp Drive blades are solid carbon fiber, they are not hollow, they do not contain foam, they do not contain fiberglass, etc. com Phone: (641) 903-2535 003-01-21 Standard Hub Assembly Instructions (4 per Blade) Clamping Bolts [120 in-lb] (6) Mounting Bolts. The blade shape is somewhat different. WarpDriveProps. Warp Drive Propeller 3-Blade Conventional Propeller "Shipping World-Wide" Call 1-251-609-0969. • Contact Roger Simoneau, - located Berthier Sur Mer, QC G0R1E0 Canada • Telephone: 418-569-8573. Warp Drive Propellers are all carbon fiber construction providing superior strength and durability in there lightweight props. 1) In the case of a wood prop - to disperse the torque of the bolts evenly over the prop head. Warp Drives Advanced Composite Carbon Fiber replacement propeller blades have a structural strength near that of metal propellers. WarpDrivePropellers. Can be used with or without the Nickel Leading-Edge option. Left or Right hand. View Full Version : Warp Drive Propellers. 58 to 1 gearbox. Mercruiser Stern Drives. Upgrade to a larger size boat propeller to improve acceleration and top end performance. com. You have no items to compare. 00. 1285tt on airframe and 912ULS engines. You should never see carbon fiber. With the advent of light sport aircraft and European Ultralight Aircraft, many blade manufacturers began building ground adjustable propellers which were lighter and had better blade angles to take advantage of the slow prop turning Rotax 912S powerhouse. Made of stainless steel. 00. 92 is their recommended limit. We exclusively use 2. Pete warned that this would have too much polar inertia. I'd assumed that like any other airplane you would pull the throttle back. Sensenich has incorporated an optimized composite lay-up to minimize “flattening out” under high thrust. I had a 503 on a Phantom which came with a three blade GSC propeller. . Big fingers, small key board. Warp Drive Propellers are all carbon fiber construction providing superior strength and durability in there lightweight props. HPL & HP Hub Clamping Hardware. Proprietary processes ensure a high-quality product. Warp Drive Propellers; Compare Products . I then tried a 60" 3 blade IVO prop. Made in the USA. , both shafts can also be. I will soon start testing my new Weber engine with a 66 inch 3 blade warp drive prop, the engine should develope about 73 hp thru a Rotax C box and RK400 clutch, the ratio is 2. Clean the leading-edge of the propeller blade with a rag and denatured/isopropyl alcohol. Navigation (1x) Increases sub-warp velocity. • all blades protected by stainless steel leading edges. 8 blade left rotation warp drive prop with newly refurbished blades 11/08/2023 Florida Total views: 29 Price: $ 2,000. The Warp Drive factory has been proudly building propellers in the USA for over 28 years. Even some production airplanes can exceed redline RPM in level flight at full throttle. 50. Everything we build starts at the full 72” diameter and then is cut down to the specified diameter. Mount the propeller to the engine flange using the six mounting bolts. (1) Replacement H Propeller Blade. What length do you suggest. Choose an option 66" 68" 70" 72" 74". I had been offered a 3 blade Warp drive prop from a friend who was upgrading his Rotax powered Kitfox. K. The HP Hub is for Continental & Lycoming engines which use AN6-35A bolts with the face plate. NOTE: The price includes the Nickel leading edges and a Protractor to measure and set blade pitch. My older points 447 has a max rpm of 6250. . 00. Add to cart. Their choice of powerplant is a Subaru EA81 with a Stratus belt drive using a. From $289. Avionics & Instrumentation. 2900 RPM and I am flying across the water, that was just testing, I won't do that much again. Theese are the answer i got divided in prop brand Luga or NR prop: SL106-1750 (three-blade), 1750 is about 68" Ivopro: They only recommend 2 blade 72" prop because of my 3. Note: Photos show blades with optional nickel leading-edge protection and tapered blade tips. Warp Drive Advance Composite Propellers - Accessories. The mounting plate is drilled with a 75mm bolt pattern. I’ll keep referring comparisons to the Warp because it’s the best-known prop of the lot. 4-Blade Complete Propeller with OS Hub. 375 x L 12. 48"-72" diameter. About Warp Drive Propellers. Because of the stiffness achieved by using carbon fibers, the prop will do very little coning (bending forward) under power. That agreed close enough, as the standard cruise prop for a PA-22-108 Colt was a 74×50, with 74×48 being the climb prop option. SuperCub. Clamping hardware for use with 2 and 3-blade HPL and HP hubs. the starting pitch degree for intial testing, I'm looking for a in between # for cruise and climb! Also for warp drive install, the 4 bolts for each blade, do you put the heads of the bolts forward or aft. Back to WarpDriveProps. Warp Drive propellers have been in production since 1989. Previously Warp Drive Propellers and Knife available Marketing !! Called to Request a Screws Suggestion or Place an Order, Or Use Magnitude Securing Available Quote Request & Order Form HERE . Re: IVO vs. Sensenich Propeller Company. Panther Airboats. Warp Drive Propellers, fiberglass spinners, carbon fiber spinners, polished aluminum spinners, Warp Drive spinners, propeller spinners, prop spinners. T. “COMPLETE” Price includes Blades, Hub, Clamping Hardware, Warp Drive Protractor, and the Warp Drive Lifetime Guarantee of Satisfaction. Prevent touching the area after it has been cleaned. Includes 6 Steel Drive Lugs. I think this prop was intended for a 532 but I was told it would work on my 503 with a 2. Have pics • Contact Jim Becker, Owner - located Grass Valley, CA 95945 United States • Telephone: 209-247-2219 • Posted October 24, 2023 • Show all Ads posted by this Advertiser • Recommend. As we get closer to spring weather (hopefully sooner than later!), now is a great time to think ahead and have your propeller serviced. At Warp Drive Inc. Miguel Alcubierre, Francisco S. Warp Drive Advance Composite Propellers. S. 4-inch polished aluminum skull cap spinner. Click here for Sensenich Turbinen and Replacement sheet for Warp Drive Props-----Call 1-251-609-0969 In United Stats, U. Adherence to these. Warp Drive Inc 1207 Highway 18 E Ventura, IA 50482 Youtube Instagram Facebook-f. The new and old props. I'm virtually certain my Warp Drive prop is about 50% above the limit for my engine. Can be used with or without the Nickel Leading-Edge option. Aluminum Drive Lug Set quantity. Please note, Pilotshop. Blades are also individually replaceable. Warpage Power propeller 2-Blade HPL Propeller. climb is 7-800 at gross at 4000ft. Stern Drive Propellers. Note: Available for purchase by phone in bulk length for $3. Read More . Fred F. Warp Drive Propellers are all carbon fiber construction providing superior strength and durability in there lightweight props. 18"-52" or 35"-70" pitch range 48"-72" diameter • carbon/graphite fiber. Warp Drive IncorporatedWARP DRIVE HUBS Warp Drive offers two types of hubs of our propellers. Add to cart. Model 4 Kitfox (700#'s) , 912 RotaxULS (100hp), 29" ABW's. Warp Drive Propeller Repair Warp Drive Propeller Repair As we get closer to spring weather (hopefully sooner than later!), Read More » February 7, 2017 « Previous Next. Wood Propeller and Composite Propeller Sales and Support. Ultra-Prop; Warp Drive; Featured Product. Includes 4 blades, Complete OS Hub, Protractor, Stoneguard leading-edge tape kit and assembly instructions. Jump Fuel Conservation (8x) Reduces jump drive fuel usage. Left or Right hand. All props are ground adjustable. Standard Advanced Composite Carbon Fiber Blades: The Carbon Fiber Standard Blades can be used on Rotax, Arrow, VW and similar engines. True tip speed is what dictates the best Prop RPM. Because of the stiffness achieved by using. I have done it to three props. 6mm) bolt hole circle locations. For what its worth, the clearance. Warp Drive Inc 1207 Highway 18 E Ventura, IA 50482 Youtube Instagram Facebook-f. Add to cart. Propeller mount/ timing pulley hub with bushing. This blade will fit directly into any Warp Drive hub configuration from a 2-blade 66″ diameter up to 10 blade 90″ diameter. Rotation. lighter on 3-blade props) which both use 3" bolts. Warp Drive props are relatively massive, and certainly a 4-blade Warp will be quite a chunk of mass to mate to a chattering little 2-stroke. Props are ground adjustable. Clamping hardware for use with 4, 5, 6, 8, 10 and 12-blade OS & Turbo hubs. And, the Warp Drive prop actually weighs less than similar style hardwood 3-bladed props, which greatly extends the operating life when compared to regular hardwood units that often use heavy castings at the prop hub. Aircraft Spruce is a worldwide distributor of certified and homebuilt aircraft supplies. If you choose to pay via credit card an additional 2% processing fee will be added to your order. Because of the stiffness achieved by using carbon fibers, the prop will do very little coning (bending forward) under power. The construction of Warp Drive blades allows for very simple repair of any nicks and gouges. This thread is, as the title says, all about props. I also agree with John Fenner I wouldn’t go anything under 68in. Warp Drive offers three types of hubs: A Standard Hub is an assembly of aluminum plates and composite clamping blocks. They can repair these blades and replace the nickle LE's. Warp Drives Advanced Composite Carbon Fiber propeller has a structural strength near that of metal propellers. I would like to know what props those on the forum are using on their Jab 2200s. For rough fields etc. Warp Drive Technology for NASA Use. Protractor to set blade pitch: LINK. I would like to know what props those on the forum are using on their Jab 2200s. O-200/Tailwind. 1989: Composite: up to 180 hp: 1207 Highway 18 East, Ventura, IA 50482: 641-357-6000: Whirlwind Propellers Corp. but when I measured the pitch with a Warp Drive protractor, it came out to more like 49. Remove the paper backing from the 3M Stoneguard Protective Tape. The Warp Drive professional protractor is used to precisely set propeller blade pitch. The scimitar blade shape helps to reduce noise signature. 00. The mounting plate is drilled for 75mm, 100mm, and 101. From everything that I have read, a 68", three blade, square tip, Warp Drive prop exceeds the MMOI* rating on a Rotax gearbox. It is NOT ACCEPTABLE to use the 75mm bolt pattern to mount a Warp Drive propeller to a Rotax 9-series engine. T profile. Their ground adjustability allows them to be fine tuned to your aircraft and conditions. Call for a Quote. I had been offered a 3 blade Warp drive prop from a friend who was upgrading his Rotax powered Kitfox. Safety Wire - Stainless Steel - 1 Lb Spool. Warp Drive props still have some sort of core, but I cannot tell you what it is. Warp Drive Propellers, Replacement Blades, Blade Options on Sale this Month! Click Here For Warp Drive Aircraft Propellers. com {replace (at) using the @ symbol} or click E-MAIL if you have questions. 5) Example of Angle Measurement 28 deg. 00. 00. Will fit all 2 stroke and some 4 stroke engines such as Rotax, Hirth, HKS, Polini, Simonini, Verner, MZ, Cuyuna and Kawasaki. All props are ground adjustable. It came with a 60" 4 blade Ultraprop that had the 13 degree pitch blocks in it & was right on 6250 for max flying rpm. In business since 1989, the folks at Warp Drive in Ventura, Iowa, are still making their well-regarded ground-adjustable carbon-fiber propellers, in two- to six-blade configurations. From $306. Includes 6 bolts, 6 nylock nuts and 12 washers. Bolly Airboat, Hovercraft and Aircraft Propellers. Add to cart. I got very good performance from the prop but changed out to a 3-blade. You can get a protractor or angle guage at home depot for about 7 to 12 dollars. Proper fiber placement allows the prop to flex torsionally for maximum cruise. If you take the tip of the prop at any point, then after one revolution of that tip as the plane goes forward the distance covered by the plane is the vertical leg of a triangle, the distance covered in a circle is the other leg of the triangle and the hypotenuse is the total distance travelled, in one revolution by that particular tip, to. I have heard that these have a high moment of inertia and are hard on the gearbox. Proper fiber placement allows the prop to flex torsionally for maximum cruise efficiency. Airplanes In Flight Adjustable Amphibious Airboats Powered Parachutes Trikes Interested in bringing Warp Drive propellers to your region or market? Help others buy the Warp Drive brand you trust. $0. option offers a limited lifetime water damage warrantee. #1. 1,173 likes · 18 talking about this. 7 Miles per hour a 80" prop at 2,800 has a tip speed of 665. Service Bulletins. Coupon. Oct 28, 2020. Warp Drive Propeller Replacement Blades. There are so many numbers on the protractor and it's been a long time since I used it I can't remember for certain if I'm doing it right. 6mm (4-inch) or SAE1 bolt. Leading Edge Air Foils carries composite and carbon fiber 2-, 3-, and 4-blade propellers for both pusher and tractor applications. All Bolly Blades fit Warp Drive Propeller Hubs! Save your Rotax Gearbox! Rounded & Painted Blade Tips now available for the "War Bird" Look ! Email Us: hoverhawkcorp (at) gmail. com. Warp Drive quoted me a 68 inch three-blade prop. Click here for Sensenich Propellers and Replacement blades for Warp Drive Props-----Call 1-251-609-0969 In United States, U. com *NOTE: The BOS3 4X hub provides up to a 74" diameter due the the hub diameter compared to BOS3 Hub 4, and has the Rotax 101. 06-24-2010, 12:02 AM. Included with complete propellers. 00 Add to cart; Clamping Block Set $ 10. Available Separately. For a fixed pitch Warp Drive, the 80 HP can only easily drive a 62 inch taper 3 blade Warp. The Brolga Sport Propeller: The Brolga Sport propeller has a similar cost to low end propellers, but are lighter and spin up much faster when throttle is added. The Razor offers more blade area in comparison to the. Sold per blade.