Engine: Lycoming O-320
Airframe: Storm 400
Location: Rome, Italy
Dear Whirl Wind,
Today I finally had the opportunity to install my new WhirlWind GA200L 72″ propeller on my Storm 400 with Lyc.O-320 E2A 150 Hp. engine. I removed my Sensenich Wood 68″/ 84″pitch propeller after 20 hours of test flights with it. I calculated the inches of pitch of the wood Sensenich 84″ geometric-pitch to be approximately 20.5° at 2/3 of the blade from the root. And I set my GA200L propeller at the similar angle which gave me exactly the RPM I wanted. The performance with the ĢA200L propeller is simply amazing! Takeoff distance (in similar conditions) is estimated 35-40% less distance. Top IAS at 2500 RPM it’s over 160 Kias !
I look forward to flying with this propeller for a long while.
A. Pastore (Rome, Italy)
Just installed your new 70in S.T.O.L. propeller on UL350 powered Zenith 701. I can say with confidence this is the best performing propeller we have tried, and we have tried them all! Take off and climb are impressive and everyone is crazy over the carbon fiber finish.
Thanks for a fantastic propeller !!
Airplane : Zenith 701
Engine : UL350
Amazing performance, rate of climb out of this world at 1200 feet per min. at 6000 ft. Thanks!
Should you wish to send a t shirt please do so in large.
I’ll be happy to tell anyone how wonderful your props are.
Hello Whirlwind propellers.
I thought I would let you know how pleased I am with the GA200L propeller on my GlaStar. It was easy to fit and on initial adjustment to 20° pitch I noted similar take-off performance to my previous metal propeller (74 x 64”), but a large increase in cruise speed with rpm. However, I could only reach 2600 rpm in level flight. I turned down the pitch to 18.5° and noted a marked increase in take-off acceleration and climb with 2350 rpm static as opposed to 2250 rpm with the previous propeller. In cruise I had slightly increased speed per rpm and could just reach red line (2700 rpm) with my Lycoming O-320 160 hp engine.
Contrary to my expectation of increased cruise efficiency, I have better take-off performance and slightly increased cruise speed. However, fuel economy seems unchanged. I also liked the use of Nord-Lock washers to secure the bolts as this made changing the pitch less trouble than securing with safety wire.
It is half the weight of my previous metal propeller. This made shipping less costly and the slip of a girl who delivers our mail brought the box to the door with no effort.
In sum, this prop really grabs the air and offers enhanced flexibility in performance at a considerable weight saving. It also looks a highly crafted product.
Airplane : GlasStar
Engine : Lycoming O-320
We flew for 4 hours with the new Whirl Wind 3 blade propeller for the UL 350IS and I must say I am impressed. 3300 RPM for takeoff and the propeller would out climb the “Brand X Propeller”, however the cruise RPM was too high. So that we added 2 degrees of pitch and could take with 3000 RPM, the rate of climb was still 1400 feet per minute. Now I cruise with 100 less RPM than the “Brand X” at 96 MPH and 2560RPM. This is the best preforming propeller we have tested. And we’ve tested all the big name brands.
Here are Pictures of our new UL 350 3 blade Whirlwind propeller during the partial solar eclipse. Fitting because this prop has eclipsed all the others we have tested so far.
Airplane : Zenith 701
Engine : UL350IS
“Attached is a photo of my airplane with your GA200L prop installed; purchased in Feb 2011. Engine is a Superior XP-360, yielding top cruise speed of around 160 mph. I love this prop! Compared to Sensenich aluminum fixed pitch it results in 20 lbs less weight and 5 mph faster!” ~ Mark N. (Lebanon, OH USA)
I have a few experiences of the WhirlWind GA200L I would like to share…
– The engine runs smoother
– Fuel consumption appears to have decreased by 5-10%
– Take off performance and climb performance is better, by appr. 10%
– The noise level is much more quiet (15-20% compared to my previous propeller)
– The customer service is pretty good, too!
*The Prince P-tip I had before had a noise level of 77.1 DbA. The WhirlWind GA200L is just 72.2 DbA. As the decibel scale is logarithmic, it represents about 15-20% less noise.
**I have also received my European “Certificate of Environmental Quality – Noise” that can be shared with others in Europe who wish to use your propeller. ”
Hasse H., Sweden
Glastar / Lycoming 320
I installed Rotax 75 on my Rans S-7 aircraft. It takes off in a shorter range and climbs steeper than any other propellers I have tried. It is smooth and shiny too. Thanks Whirlwind.
Airplane : Rans S-7
Engine : Rotax
Thanks Whirlwind for the great prop and service. Your propeller really brought my super cub alive and performs much better than the one I removed. Everyone who sees the propeller comments on the outstanding quality. Still can’t believe you were able to send a new set of blades overnight when I encountered an un-welcome hangar rash incident.
Airplane : Super Cub
Engine : O320
This long prop turned 100 ponies into 100 horses. Not to mention smooth as
silk. Tail comes up instantly. Take off shortened substantially. I can’t
tell you how much we value good service up here.
Airplane : Rans S-7
Engine : Rotax
Just installed the blades, they worked very well and gave a fantastic look to the plane.
All the Best.
The prop works great, about 15 MPH faster at the same RPM setting as with the other prop and an increase of 300 FPM climb. I am going to play with different pitch settings, I’ll let you know.