Koelemon68
Member
I am looking for some guidance. I currently have a RV 7 with a O-320-D2J engine with a Catto 2 blade prop with a 19.2# weight bolted on the front of the prop. (See attached Photos) I am getting a lot of vibration especially at lower RPMs so I have the prop removed to get it static balanced with the weight. I have a feeling the weight may be the issue. So I am looking at options as we are flying some formation but this set up is hard to slow down and stay in place.
Options:
1. 3 blade fixed pitch. What would be options for this and to naturally get more weight up front? I know Catto make one but it is really on 1# heavier than what I have.
2. The O-320-D2J engine does have a plug for a constant speed prop and a pad for a governor. I think this option may be cost prohibitive unless you know of a good option here.
3. Something between the 2 options above. A electric prop??? Basically a take off pitch then you can change it to a cruise pitch. I know nothing of this as it was just mentioned.
I am not in a hurry as I am currently putting some updated avionics in it but I need to fix this vibration issue and get more weight up front as we are always aft CG.
Options:
1. 3 blade fixed pitch. What would be options for this and to naturally get more weight up front? I know Catto make one but it is really on 1# heavier than what I have.
2. The O-320-D2J engine does have a plug for a constant speed prop and a pad for a governor. I think this option may be cost prohibitive unless you know of a good option here.
3. Something between the 2 options above. A electric prop??? Basically a take off pitch then you can change it to a cruise pitch. I know nothing of this as it was just mentioned.
I am not in a hurry as I am currently putting some updated avionics in it but I need to fix this vibration issue and get more weight up front as we are always aft CG.