• J3-Cub.com is the largest community of J3-Cub pilots, owners and enthusiasts. With over 1000 active members, we have fostered a vibrant community and extensive knowledge base. J3-Cub.com hosts a library of over 13 years of technical discussions, J3 data, tutorials, plane builds, guides, technical manuals and more. J3-Cub.com also hosts an extensive library of J3-Cub photos.

    Access to the J3-Cub.com community is by subscription only. Membership is only $49.99/year or $6.99/month to gain access to this community and extensive unmatched library of knowledge.

    Click Here to Become a Subscribing Member

    You will also get two J3-Cub decals as well!

O-200 in J3 FAA Memorandum

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

JimC

Well-Known Member
Supporting Member
Joined
Feb 25, 2007
Messages
14,383
Reaction score
2,255
Derated to 90 hp by placard.

Note that hp is dependent upon both rpm and manifold pressure, but the Memorandum doesn't require that manifold pressure be specified.

Rather than deriving the appropriate rpm myself, I used a previously approved 337 to provide "evidence" that 2665 rpm gave 85 hp and went with that.

FAA_J3_O200.jpg
 
Last edited:

Latest posts

Back
Top