The engine power band, tuned exhaust effects versus rpm and the varying load the prop puts on the engine all make it difficult to set these props in flight. The new prop uses a torsional steel rod imbedded in the blade for adjustment. Specify aircraft and engine make and model, and propeller diameter 48 to 76. For the warp drive machined shown here, the openings must be cut out square to accommodate the ends of the hub. Just wondering if anyone has ever done a comparison thrust test with ivo inflight adjustable props and other fixed pitch props. The quick adjust system ivoprops allow you to adjust the pitch on the ground in a matter of seconds by turning the screw adjustor in the center of the prop.
You may however wish to take advantage of the simple pitch adjustment feature to accommodate the many variations between individual vessels and operating preferences and obtain the optimal motoring performance for your particular requirements. Inflight adjustable pitch ivoprops from california power. Every blade comprises an adjustment member and a blade piece part. This schedule is intended for use on the rsuk version of the ivoprop dl368 only, as released under addenda to aan29345 cavalon, aan29266 calidus, aan29247. Adjust the pitch so that ultimate fullthrottle revolution per minute matches the way you use your boat. This closeup shows the nylon insulation rings in the slipring disks. Provides you with accurate tools to predict the performance of each characteristic of a boats engine, drive and propeller system. Adjust laptop brightness is a software utility to adjust screen brightness on hp, compaq, dell, gateway, ibm, lenovo, sony, toshiba, fujitsu, panasonic, samsung, acer, and msi laptops. My adventurer is equipped with a 3 blade ivoprop medium in flight adjustable prop, and the thing is becoming the bane of my flying existence. Propeller calculator tools for your boat new boat motors. Ivo says i will get prop stall at roll out with the ultralight but they sell lots for 912s.
Inflight pitch adjustment is a complication that a basic light airplane does not need. May 05, 2012 check the 503 with tail tied to a tree or something very solid, run the engine up to 6300 rpm in static on the tac. Total time for the full range of adjustment is about 5 seconds. One turn of the 8 mm pitch screw in a clockwise direction. As long as you cut the same length piece from each blade, the prop will remain in balance. Jan 20, 2017 just wondering if anyone has ever done a comparison thrust test with ivo inflight adjustable props and other fixed pitch props. Pitch switch is the fast, easy way to change the tempo or key of virtually any music file on pc or mac. As far as where to pitch it, you just keep adjusting until full throttle on the motor gives you the rpm you want. Save ivo prop to get email alerts and updates on your ebay feed.
Rotate the propeller by hand into the reverse position against the spring, and then only increase the pitch until the blade comes up against the reversing rollers. If it wont reach the 6300 rpm mark, then you have too much bite on the prop, provided all else is right. One of the best is how quick and no brainer is to adjust pitch. Any of you have a rule of thumb for ivo prop adjustment with a 2 stroke like 1 turn 250 rpm or something like that. The ability to change the pitch in flight is as significant for the airplane pilot as for the driver of a car to shift gears in the transmission. I am finding my ivo prop not quite as good as the old fixed pitch for getting airborne. The inflight adjustable pitch ivoprop allows the pilot to change the propeller pitch in flight. For the first 20 hours of flight testing, the aircraft was fitted with an inflight adjustable, ivo 76 inch, 3 blade magnum with 45105 inch pitch range. Calculates the propeller pitch required to achive the correct engine rpm.
Maintenance, repair and overhaul of mtpropellers sales and service of products made by other manufacturers. Ivoprop propeller, quick ground adjustable ultralight prop. For the former two, the spinner hides the hub and only the blades protrude. We carry over 8,000 unique parts and supplies for rotax engines and the aircraft they power.
Pitch adjust, free pitch adjust software downloads. On your next flight, establish a vy climb at wot and adjust the prop pitch to achieve the. By entering your boats motor information, desired execution outcome, and total wieght a prop will be recommended to you. It should then reach max hp in the air between 6500 to 6800 rpm. Ivoprop 3 blade propeller six chuter international. Ivoprop, ivo prop designer, and history on the prop.
Each supercam fits into the groove in the screw adjustor. The ability to change the pitch in flight is as significant for the airplane pilot as for the driver of a car to shift. Like magic your songs are automatically adjusted to suit your needs, right before your ears. Ive never known anyone to do it, but im sure if you went too far past this you could break the blade or the torque rod inside. Ivoprop, ivo prop, ivo propeller, ivoprop ground adjustable propeller. Ivoprop inflight adjustable medium propeller, ivoprop. Cruise speed vs rpm and smoothness was great however. Spp propeller sizing, pitch adjustment, performance calculation software, engine rpm, gear box ratio, propeller sizing software. Just open up your favorite music and use the pitch and tempo sliders. The secret of ivos success is a combination of low price and unique features. Pilot controls the pitch through the toggle switch mounted in the cockpit. The power fin and ivo are foam cored and are not highly thought of in some quarters.
Once airborne and pitch set though it goes extremely well. Spp propeller sizing, pitch adjustment, performance. The ivoprop pitch change motor has suffered from poor service reliability. I have been very pleased with my ivo inflight adjustable prop on my 582 powered kitfox. Adjust low pitch adjustment washers to provide maximum rated prop rfm less approximately 100. Pitch continuously adjustable on the ground in a matter of seconds by turning the screw adjuster in the center of the prop. The pitch change range is from 3 to 17 degrees on the tip or inches of the helix advancement from 18to 52. Prop tools propeller sizing, pitch adjustment, performance. During flight it is a fixed pitch prop of course but it can be ground adjusted to suit the engine performance and whether it is desired to have short field or cruise performance. Inflight adjustable pitch ivoprops aircraft spruce. Early testing with the engine and prop integration will tell. Potential overall performance gains, when used with a 2cycle engine, are difficult to achieve. Weight of 3 blade 72 in flight adjustable prop including all required parts furnished is 9 lbs. One simple technique for using manual pitch on planes that are not a csp is to set throttle to give revs that match current situation cruise power or combat power and then leave throttle alone and control speed with pitch.
The ability to change the pitch in flight is as significant for the airplane pilot as for the driver of a car to shift gears. I proved that to myself again and again by adjusting my ivo in flight adjustable prop as it is so easy to adjust pitch to experiment. Maintenance manual for ivo prop variable pitch propeller rotorsport uk ltd. So easy that if you find yourself in a short field situation and want lower pitch for shorter takeoff, its totally practical to do that. Shaft taper calculator allows you to accurately calculate shaft taper sizes to assist in matching propellers to shafts. Pressing the toggle switch one way sends an electric. George had called me to let me know it was the best improvement he had done to the boat. Firstly, after i brought the prop i discovered that there is a requirement to retorque the mount bolts every 10 hours, and inspect.
Ivoprop electric inflight adjustable medium propeller. How to determine the optimal forward motion pitch and or the optimal backwards motion pitch of the propeller the diameter and pitch must be calculated as if max prop easywhisper were a common fixedpitch propeller. Inflight adjustable pitch ivoprops from aircraft spruce canada. Here is a closer view of the sliprings, insulation disks, and the leadscrew and sloted follower. Lockwood aviation supply provides parts and service for all rotax powered aircraft. Software tools for programming the propeller p8x32a multicore microcontroller with various languages, including graphical blocklyprop, and textbased c, spin, assembly, and propbasic. The pitch adjustment motor reverses, which requires keeping the power separate from the aircraft ground.
So easy that if you find yourself in a short field situation and want lower pitch. Ivo prop constant speed avidfoxflyers general hangar. The ivoprop operates on a completely unique adjustable pitch system. Ivoprop inflight adjustable medium propeller, ivoprop, ivo. The only time you need to lock the screw adjustor with lock nut is when you pitch the prop between the neutral and two turns pitch decrease, in all other pitch setting screw adjustor stays where you leave it without a jam nut. Ivoprop inflight adjustable medium propeller, ivoprop, ivo prop, ivo propeller for lightsport, experimental and light sport aircraft. Ultralight quick ground adjustable propellers ivoprop. The prop tools package contains software that will enable you to become a propeller expert, simply input the known performance details of a boat and the software will calculate the unknown details for you. Ivo prop adjustment two strokes avidfoxflyers forums. Most notable is a simple pitch adjustment using a torsional rod embedded in each blade, which can. Sep 14, 2016 any of you have a rule of thumb for ivo prop adjustment with a 2 stroke like 1 turn 250 rpm or something like that. Check the 503 with tail tied to a tree or something very solid, run the engine up to 6300 rpm in static on the tac.
On a fixed pitch prop, it may be possible to increase the effective pitch by decreasing its diameter. Well that is how i met ivo zdarsky the owner of ivoprop. Medium ivoprop is for engines around 100hp 5274 prop dia. Ivoprop, how the electric inflight adjustable ivoprop works. Analysis of the motor current draw during the propeller operating cycle. This is very important when ordering new propellers or. Im trying to make a decision on what prop to buy for 912s. I have made up my mind to go with ivo inflight ajust but unsure if i should get the ultalight 72 3 blade at 9. For our open source projects, see the parallax inc. Since 2 strokes easily change rpm with slight pitch changes i feel a constant speed would be great. With a rotax 503 here are some pitch figures for various props and approximate thrust figures. Ive always found with 912s that to get optimum overall speed and climb that you need to get close to 5800 rpm when straight and level and wide open throttle. This represents the maximum pitch setting available from your kiwi feather prop. Again, the prop must be adjusted and torqued precisely as the factory recommends.
If not already installed tap the super cams until fully inserted and lock them with the screw supplied. Posted by doit leon koppler on 11th nov 2017 this manual was just what i needed to install and adjust my ivo propeller. The pitch change range is from 3 to 17 degrees on the tip or inches of the helix. Maintenance manual for ivoprop variable pitch propeller rotorsport uk ltd poplar farm prolley moor wentnor bishops castle sy9 5ej company reg no 5486550 phone. Take off and get on plane with less pitch and add more pitch to bring the engine rpms down to improve your cruze rpms and save fuel. The ivoprop operates on a completely unique adjustable pitch system that allows for substantially less hardware and rotating mass than any other ground pitch adjustable prop.
Inflight adjustable pitch ivoprops from aircraft spruce. This results in substantial savings in fuel, engine wear and noise. Now you can slow down mp3s without changing the pitch, or lower the key of a song into your range without changing the speed. Quick adjustment instructions torque on the mounting bolts.
Ivoprop quick adjust propeller adjustment instructions. Propeller calculators are online software tools that help you decide the ideal diameter and pitch for a definite boating application. This schedule is intended for use on the rsuk version of the ivo prop dl368 only, as. Remove one 2 inch washer to increase rpm setting by 75. Analysis of the motor current draw during the propeller operating cycle has identified. This gives him the ability to change the pitch in his prop blades while driving the boat. I sat down and had a talk with him for quite a while to get some background on this prop and designer. Wings forum view topic ivo inflight ajustable 912s. Most notable is a simple pitch adjustment using a torsional rod embedded in each blade, which can be twisted by a cam in the propeller hub. The spp package contains software that will enable you to become a propeller expert, simply input the known performance details of a boat and the software will calculate the unknown details for you.
The trick is to set the proper pitch before the takeoff roll. I have had dramas with it ever since i got it, and i would be interested to know if anyone else has had these issues. Takes about 5 minutes and most of that time is removing the phillips head screw that hold the spinner on. It helps you to save your battery and reduce your eyestrain. Prop tools propeller sizing, pitch adjustment, performance calculation software, engine rpm, gear box ratio, propeller sizing software. Jan 22, 20 i have been very pleased with my ivo inflight adjustable prop on my 582 powered kitfox. As far as where to pitch it, you just keep adjusting. Inflight adjustable pitch ivoprops the inflight adjustable pitch ivoprop allows the pilot to change the propeller pitch in flight through a toggle switch mounted in the cockpit. The ivoprop operates on a completely new and unique adjustable pitch system that allows for substantially less hardware and rotating mass than any other ground pitch adjustable prop. In level flight you can have any rpm you want within the pitch range of the propwhen you let go of the switch, the prop stays at that setting no automatic adjustment, so if you start a climb or descent, the prop acts like a fixed pitch prop because it is, until you hit the switch. If you wish to increase top speed or decrease cruse rpm, switch to a 2blade prop or cut the 3blade prop to smaller diameter using a hack saw. The quick adjust system ivoprops allow you to adjust the pitch on the ground in a. Wings forum view topic sensenich flight test report. The 8 spinner works well on the ivo patriot, gsc, and the warp drive machined.
Ivo makes a constant speed controller, but i never got one. Flight adjustable pitch ivoprop h in flight is as significant for the airplane pilot as for the driver of a car ings in. As pressure is applied to the base the rod twists the blade. Ivoprop propeller quick adjustment instructions, how to. The only time you need to lock the screw adjuster with lock nut is when you pitch the prop between the neutral and two turns pitch decrease, in all other pitch setting screw adjuster stays where you leave it without a jam nut.
The positioning member connected with the adjustment member is carefully matched with the receptacle members intended for adjusting the boat propellers blades pitch. The unique pitch adjustment design operates on the principle of twisting the blades through the chromemoly alloy steel torsional rod cast inside the blade. He literally walked out of the crowd and invited me try out his prop on my buccaneer amphibian. Last week we installed the inflight adjustible kit to george thomas dixon twister. The supercams are welded on the end of the torsional rods. There are also calculators that surmise the power that each rotation of the propeller will give the boat. For the warp drive machined shown here, the openings must be cut out square to accommodate the ends of. Ivoprop ultralight propeller ivoprop ground adjustable. If you switch to manual pitch, you may also need to reduce prop pitch on some aircraft during takeoff emil for example. The secret of ivo s success is a combination of low price and unique features. For more information and pricing on the ivoprop click.
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