• Welcome aboard HomebuiltAirplanes.com, your destination for connecting with a thriving community of more than 10,000 active members, all passionate about home-built aviation. Dive into our comprehensive repository of knowledge, exchange technical insights, arrange get-togethers, and trade aircrafts/parts with like-minded enthusiasts. Unearth a wide-ranging collection of general and kit plane aviation subjects, enriched with engaging imagery, in-depth technical manuals, and rare archives.

    For a nominal fee of $99.99/year or $12.99/month, you can immerse yourself in this dynamic community and unparalleled treasure-trove of aviation knowledge.

    Embark on your journey now!

    Click Here to Become a Premium Member and Experience Homebuilt Airplanes to the Fullest!

"Thrust"

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

Mark Schoening

Well-Known Member
Joined
Aug 2, 2012
Messages
124
Location
KRHI
I notice some engine conversions claim more "thrust" with their engines.
I always thought that with a given prop, a true 100 hp engine, of any type, would only swing that prop a certain max rpm.
Allowing for a given exact same HP engine, say, 100 hp either direct drive or with a reduction unit, swinging the same prop at 2700 rpm, would the "thrust" would be the same.
Am I missing the torque factor, or ?......seems the conversion wars are caught up in this "Thrust" thing.
Example: Assuming a true 150 Hp lyc swings a prop 2700 rpm, will a true 150 hp whiz-bang auto conversion with a reduction box also swing the same prop 2700 rpm and fly the same speeds? Take off be the same? Assuming same gross weight, same airframe.
 
Back
Top