cubdriver2
FRIEND
upstate NY
I saw a picture of that.
He's a legend with the farmers in central Pa. They want to know how he harvested so much so fast
Glenn
I saw a picture of that.
How does it stand up to water spray on a seaplane?
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BINGO ! It's about time that this approach was taken. They are wood, covered with a carbon/glass fabric. As they presently exist they are eligible for installation on Part 4a airplanes and with an approval will be eligible on Part 3 airplanes. No STC required. This has been my approach in attempting to convince my FSDO. As usual they are very slow in reacting beyond the initial communication. Now that the ANC FAA is on it, I expect positive results.Craig was telling a couple of us at the trade show in ANC last weekend that they were considering this a wooden prop too!
FAA Safety Team | Safer Skies Through Education |
You have registered for the following event: "Super Cubs and other small aircraft maintenance issues and paperwork" Topic: Super Cubs and other small aircraft maintenance issues and paperwork On Tuesday, May 9, 2017 at 18:30 Location: Select Number: AL0175664 Directions: Please register for Super Cubs and other small aircraft maintenance issues and paperwork on May 9, 2017 6:30 PM AKDT at: https://attendee.gotowebinar.com/register/2288488699643294977 Description: The Fairbanks FAA Safety Team in conjunction with the Anchorage Aircraft Certification Office will be hosting a safety seminar to discuss aircraft maintenance and related paperwork issues concerning Super Cubs and other small aircraft. This seminar was created to clear up any perceived misunderstanding of what type of parts can and cannot be installed on a type certificated aircraft and what paperwork is needed to be completed. The following topics will be covered and discussed:
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BINGO ! It's about time that this approach was taken. They are wood, covered with a carbon/glass fabric. As they presently exist they are eligible for installation on Part 4a airplanes and with an approval will be eligible on Part 3 airplanes. No STC required. This has been my approach in attempting to convince my FSDO. As usual they are very slow in reacting beyond the initial communication. Now that the ANC FAA is on it, I expect positive results.
But per CAR 4.61 for all but LIGHT aircraft (less than 1000 lb gross weight) the prop needs to be APPROVED per CAR 14 (predecessor of 14 CFR Part 35), so you still need a TC'd prop, or a prop approved on an STC for that aircraft.
The J-3, J-4 and the American Champion 7 series are all certificated under Part 4a, not Part 4. The following is Part 4a.597. It is very clear that wood propellers need not be certified. There is no mention of Light aircraft being less than 1000 lb.
§ 4a.597 Propellers. Propellers shall be of a type and design which has been certificated as airworthy in accordance with the requirements of Part 14 of this subchapter or shall have been approved as airworthy in accordance with previous regulations, except that wood propellers of a conventional type for use in light airplanes need not be certificated. In certain cases maximum engine bore limitations are also assigned to propellers. Propellers may be used on any engine provided that the certified power ratings,speed ratings, and bore of the engine are not in excess of the limitations of the propeller as certificated, and further provided that the vibration characteristics of the combination are satisfactory to the Administrator.
Couldn't find it last night, here it is. I agree with what you said except that the planes which I listed specifically state that they have been approved under 4a. So 4a applies not 04. When they did the rewrite they must have realized that the 1000 pound limit wasn't important or was an arbitrarily low number. It would be interesting to actually know what their thinking was at the time.You can find CAR 4 and most other old regulations on the FAA regulatory guidance library.
http://rgl.faa.gov
Couldn't find it last night, here it is. I agree with what you said except that the planes which I listed specifically state that they have been approved under 4a. So 4a applies not 04. When they did the rewrite they must have realized that the 1000 pound limit wasn't important or was an arbitrarily low number. It would be interesting to actually know what their thinking was at the time.
http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgccab.nsf/0/5ff8a7dbdaf904ef86257b2c0060a953/$FILE/CAR_4_1937.pdf
Anyone running a Catto 84x36 on a 150 hp 0-320 that can give me a general idea what to expect as far as cruise speed, static rpm? Anyone trimming/using their stock spinner?
The stock spinner fits fine, actually a lot of clearance around the blades.Anyone running a Catto 84x36 on a 150 hp 0-320 that can give me a general idea what to expect as far as cruise speed, static rpm? Anyone trimming/using their stock spinner?
If nobody has been busted running one on a certified cub, pretty much everybody has one or knows of someone using them, they are a modified wooden propeller technically legal in most mechanics eyes, why is there such a big hipe to get them legal anymore? Pay more for what most people are already using.
If the data plate said what it really is "Wood covered with Carbon composite" there should have been no issue on a 4a airplane. Except that the T-cart is certified under part 04. "Certification Basis Part 04 of the Civil Air Regulations effective as amended to May 1, 1938. TypeCertificate No. 696 issued." Part 04 is the one where there is a 1000 lb gross weight limit for non certified wood props. Unfortunately on the T-cart the ticket was valid.
I got to see the ticket first hand, it really happened!! stated that a Catto in a composite prop and not a wood prop. totally winnable but at what cost????
That is funny. The Anchorage Aircraft Certification Office doesn't see it that way nor does the Seattle FSDO.
Whats the matter, the " old man " been spankin your short game lately :lol:
Glenn
Glenn
he has fallen for Nichol at Catto.
iim