Ultra-Prop Propellers, Carbon Fiber Composite, for Ultralight, Micro light , Experimental Aircraft, Airboats, Airboat Fans, Mini-Airboats, Hovercraft, VTOL, Drones, Quad Copters, Gyro Copters, UAVs, Wind Machines, Industrial and Agricultural Ventilation & More ! |
Two-Blade Ultra Prop II ready to Fly!
The "Show Prop" Decorative
Scheme is Shown
on the 3-Blade and 4-Blade Ultra-Prop II Propellers Above
Above is a picture of 6-blade 55 inch Ultra Prop
II on our customer's hovercraft
powered by a 113 hp BMW 1200 RS engine with a gearbox reduction drive unit.
----------------
Call or email us to request a
propeller suggestion, a quote or to place your order,
Or use our secure online
quote request & order form
HERE
Contact Telephone Number
1-251-609-0969 in USA
+1-251-609-0969 outside USA
Email: hoverhawkcorp(at)gmail.com
Prop Diameter | RPM Redline |
66 inch | 2900 |
60 inch | 3000 |
54 inch | 3100 |
48 inch | 3300 |
42 inch | 3650 |
36 inch | 4000 |
30 inch | 4200 |
Convert Your Existing Ultra-Prop I
to an Ultra-Prop II
A New, Lower Cost Solid Carbon Composite Propeller
for Sport Aviators and Air Boaters.
Convert your existing, original
Ultra-Prop I to an Ultra-Prop II if by replacing the blades. Use your existing Ultra Prop 1 hub,
You may need to reduce blade pitch due to higher efficiency and an increase in
blade surface area if the diameter and blade count is to remain the same.
The Ultra-Prop II is capable of absorbing about 3 times the HP of the original Ultra-Prop
1 for more demanding applications that require more powerful engines. Available with LH or
RH blades, for pusher or tractor applications.
Match the Propeller Blade Pitch to
Properly Load the Engine
for Maximum Performance and Economy
Adjust the blade pitch angle to fully load your engine at full throttle up to the engine redline rpm, or 100 to 300 rpm below the engine rpm redline when not moving, depending on the top speed of your boat or aircraft. Moving forward unloads the propeller and RPM will climb. The propeller becomes, or replaces, the engine's rpm "governor". If for an aircraft, set the maximum full throttle rpm for flying straight and level at your typical cruising altitude up to the engine redline. If for a boat, set prop pitch to limit engine rpm to or just under engine redline rpm when on plane (or as fast as the boat can go) in smooth, calm waters .
Obviously you will need a tachometer connected to
your engine. This procedure applies to ALL engines at or just under engine redline
rpm turning a propeller to produce maximum possible THRUST per HP!
Ultra-Prop II can be used on all Rotax (2-stroke to 914 4-stroke) and all similar gasoline
engines (2 or 4-stroke) using a reduction gearbox or belt drive between the propeller and
engine. Electric drives can be direct-drive to propeller. A 6-blade 66 inch Ultra-Prop ll
can load 150 HP at 2500 propeller RPM at a useable blade pitch for flight.
Ultra-Prop II
Propeller Prices (USD)
Complete
Propeller--Weight--Price--Each
2-Blade----$450 (6 Lbs.) Each, or 3+ $430 Each
3-Blade----$550 (8 Lbs.) Each,
or 3+ $525 Each
4-Blade----$650 (10 Lbs.) Each, or 3+ $630 Each
5-Blade----$775 (12 Lbs.) Each, or 3+ $755 Each
6-Blade----$900 (13 Lbs.) Each, or 3+ $875 Each
(20 inch to 67-1/2 inch diameters)
Overall blade length is 31
inches. Blade width is 4.25 inches at mid-blade, tapering
to 2 inches at the tip. Weight of full length blade is 1.662 pounds each.
Ultra-Prop II Replacement Parts
Single UP2 Blade-- $155 each.
3 or more Blades-- $145 each.
6-1/4 inch Diameter Spinner Kit- $65, $55 with propeller purchase
Ultra-Prop Faceplate/Crush Plate-- $25 each
Extra Pitch Blocks--$11 per blade
Propeller Mounting Bolts, Nuts, Washers set, 8 mm or 5/16 inch-- $25
Plus postage/shipping cost.
Each Ultra-Prop II
Propeller Kit includes blades, hub, blade
clamping bolts, one set of pitch blocks, plus
easy to understand Assembly Instructions
========
Call or email us to request a
propeller suggestion, a quote or to place your order,
Or use our secure online
quote request & order form
HERE
Contact Telephone Number:
1-251-609-0969 in USA
+1-251-609-0969 outside USA
Email Us: hoverhawkcorp(at)gmail.com
======
Mount Ultra-Prop 1 direct-drive on B&S, Honda engines, etc. with the flange kit, 2 to 6-bladed props, bolt-on and go! Or use our bolt-on belt reduction drive units.
(20" to 59" diameters available)
2-Blade Propeller (Model 102) |
5.0 lbs. |
$350 |
3-Blade Propeller (Model 103) |
6.5 lbs. |
$425 |
4-Blade Propeller (Model 104) |
8.0 lbs. |
$500 |
5-Blade Propeller (Model 105) |
11.0 lbs. |
$600 |
6-Blade Propeller (Model 106) |
13.0 lbs. |
$700 |
Go to Propeller Recommendations for the Original Ultra-Prop
Ultra-Prop 1 Facts
Lowest cost adjustable-pitch prop in the world
- 42 years in production - over 21,000+ sold !
Innovative pitch block system -- holds blades at exact angle -- no protractor
required.
Ultra Prop blades are interchangeable -- featuring perfect balance
and exceptionally smooth performance.
Ultra Prop 1 Original blades may be used as wind-driven turbine blades to
generate electricity!
Ultra-Prop 1 Propeller RPM Limits
Prop Diameter | RPM Redline |
59 inch | 3100 |
54 inch | 3300 |
48 inch | 3600 |
42 inch | 3950 |
36 inch | 4200 |
30 inch | 4500 |
24 inch | 4750 |
===========
Call or email us to request a propeller suggestion, a
quote or to place your order,
Or use our secure online quote request & order
form HERE
Contact Telephone Number:
1-251-609-0969 in USA
+1-251-609-0969 outside USA
Email Us: hoverhawkcorp(at)gmail.com
=========
Ultra-Prop 1 Blades - Molded carbon-reinforced composite. The factory length is 27-9/16 inches overall, end to end, which makes a 59" diameter propeller when installed in the hub. All blades are identical in weight and are interchangeable. Blades are easily trimmed for custom diameters. Order left-hand or right-hand rotation. Price: $120 each plus shipping. When ordering replacement blades, specify the precise overall blade length end to end or the precise prop diameter desired, or state "full length". Original Ultra-Prop 1 only.
Blade Pitch Blocks -Molded carbon-reinforced composite. Grooved faces provide precise alignment with the blade root and hub. Use two identical 1/2 blocks per blade. Pitch block angles are available from 6 degrees to 18 degrees in 1 degree increments. Specify the blade pitch you need. Price is $11 per blade which includes (2) halves, for UP1 or UP2 blades., plus shipping.
Ultra Prop Hubs - Specify 2, 3, or 4 blade. Molded carbon-reinforced composite with integral steel reinforcing plates. 6-1/2" O.D. Fits a 1" diameter centering pilot or optional Rotax 912/914 47 mm centering pilot. Accommodates most mounting plate bolt hole patterns from 2-1/4" to 3-1/4" dia. and 5/16" or 8mm prop mounting bolts. Assembled hub is 2-1/4" thick. Two identical halves are included per assembly. Price is $120, or $145 to fit Rotax 912/914 centering pilot, plus shipping. Use with all Ultra-Props.
5 and 6 Blade Hub Assemblies - Made of High strength steel hub plates for 5 or 6-blade props. Fits 1" diameter center pilot. Mount using six, 5/16" or 8mm prop bolts on a 2 1/4" to 3 1/4" bolt circle. Two plates are included per propeller hub assembly, plus six 5/16" ID x 5/8" OD x 1.85" long steel, tubular spacers and blade clamping bolts included. Price is $195 each or $220 with 47 mm (or older 35 mm) Rotax 912 centering pilot, plus shipping. Use with all Ultra-Prop blades and Pitch Blocks..
Prop Flange Kit - This kit includes a taper lock bushing, a matching modified sprocket and hardware to provide the interface/adapter between a keyed straight shaft of a small gas engine or other similar shaft drive and the Ultra-Prop. Also provided is a "crush" or backing plate, mounting hardware and Ultra-Prop propeller mounting bolts. Price is $120 USD, plus shipping. Use with all Ultra-Props.
.
Prop Flange Kit with Pulley - Prop Flange Kit with 6" diameter pulley for driving an alternator. This is a popular setup when a light bank is used for night fishing. Kit includes flange with pulley, taper lock QD bushing, two propeller backup plates, all Ultra-Prop propeller mounting hardware for keyed straight shaft mounting. Price is $170 USD plus shipping. Use with all Ultra-Props.
New Spinner Kit - Fits Ultra-Prop 2, 3 and 4-blade hubs only. The kit includes a white 6-1/4 inch polyester plastic spinner dome, mounting bracket, and all extra hardware for installation. Please specify if you use 1/4 inch, 5/16 or 8 mm Propeller mounting hardware. Price is $65 for kit plus shipping. Spinner only- $65. Use with all Ultra-Props.
Replacement Hub Bolt Spacers for 5 & 6-blade hubs- Six 5/16" ID x 5/8" OD x 1.85" long steel, tubular spacers for 5 and 6 blade hubs. Price: $30 per set of six plus shipping. Use with all Ultra-Props.
A/N Hardware - Blade mounting bolts:
AN4-26A (2-3/4" long). Washers: AN960-416. Lock nuts: AN365-428. Price: $6 per set of
two bolts with washers and nuts, plus shipping.
AN4-24A (2- 1/2" long) bolts for 5 and 6-blade props. These
bolts are included with a complete propeller kit. For all
Ultra-Props.
Hub Mounting Bolt Sleeves - Are required if using 1/4" propeller mounting bolts. The sleeves are made of high impact plastic or stainless steel. Set of 6 sleeves required 1/4" ID x 5/16" OD x 2 1/4" long. Price is $10 plus shipping. Use with all Ultra-Props mounted with 1/4 inch diameter bolts.
=================
Other Propellers and Accessories for Special Applications
Hoverhawk Custom-Made, Wood Propellers for Aircraft, Airboats & Hovercraft
One of many possible blade configurations
=====
Call or email us to request
a propeller suggestion, a quote or to place your order,
Or use our secure online
quote request & order form
HERE
Contact Telephone Number:
1-251-609-0969 in USA
+1-251-609-0969 outside USA
Email Us: hoverhawkcorp(at)gmail.com
-------------
Ultra Props I & II work well with our Belt Reduction Drive unit for Industrial Air-Cooled Engines
How To Pay For Your Order
Or pay by Bank Wire Transfer World-Wide, or Western
Union
Or pay by Check in the USA
OR, If Paying with
Foreign Currency Internationally,
Use Wise
To Securely Pay for Your Order and SAVE $$$!
NOTE: Our Overseas Customers paying with foreign currency will not have to pay high bank wire transfer fees or high currency exchange commissions using Wise services to pay for their orders. We use them to pay our overseas suppliers, saving us a lot of "wasted" money !! Pay for your order with MC/Visa debit/credit cards locally to Wise in your local currency.
================
The Ultra-Prop and Ultra-Prop II propeller are manufactured by Competition Aircraft in the USA. Hoverhawk Corporation is an authorized world-wide Distributor/Dealer of their high quality products. The photos and other Ultra-Prop information posted on this website were provided by Competition Aircraft and are their property.
SELLER'S NOTICE AND DISCLAIMER and Terms of Sale
Prices, specifications, and availability are subject to change without notice. Products and materials advertised on this website are sold with the understanding that the buyer assumes all risks and hazards involved in their use or application. Buyer/User acknowledges assumption of all risks, hazards and further indemnifies seller by purchasing and/or using or reselling the products advertised and sold on this website. No express or implied warranties asserted nor fitness of merchantability claimed by Seller. Force Majeure shall be invoked and apply indefinitely in the event of war, strike, riot, crime, epidemic, pandemic, government imposed restrictions, government lockdowns, or any other event described by the legal term act of God, which prevents either of the parties from fulfilling their obligations as previously agreed. The seller agrees to resume and make good faith efforts to fulfill the previous agreement between the parties once the performance limiting circumstances subside.
Email Us: hoverhawkcorp (at) gmail.com
Copyright 2022
Useful Websites for Propellers
www.BollyPropellers.com www.Hoverhawk.com
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