Re: KR> CG tolerance

2020-08-10 Thread Flesner via KRnet
On 8/10/2020 5:10 AM, Mark Langford via KRnet wrote: Pretty simple stuff, but failure to to it correctly has led to crashed planes and dead pilots. Almost been there, almost did that!  See http://www.n56ml.com/wb/index.html if you haven't already. ++

Re: KR> CG tolerance

2020-08-10 Thread Mark Langford via KRnet
As for weight and balance, it's a simple summation of moments involving empty aircraft weight and the variable weights of things like pilot/passenger, fuel, and baggage, such that the the aircraft CG range is maintained in the proven CG envelope, located around the center of lift.There a

Re: KR> CG tolerance

2020-08-10 Thread Phillip Matheson via KRnet
Rear CofG. Amen to that. It’s not a nice feeling. I also had the trim cable fail with two on board. Had to fly and land holding forward stick the entire time. Puckering material. Phil. Sent from my iPhone > On 10 Aug 2020, at 17:25, Gary Sack via KRnet wrote: > > 81JM is a joy to fly at fo

Re: KR> CG tolerance

2020-08-10 Thread Gary Sack via KRnet
81JM is a joy to fly at forward CG and a miserable thing at aft CG. I haven't taken up passengers in a very long while for this reason. I once turned controls over to a CFI during a biannual and quickly took them back: "If I can safely get this thing back on the ground, will you pass me?" I d

Re: KR> CG tolerance

2020-08-09 Thread Flesner via KRnet
This whole CG thing comes down to the following simple law of physics: Any lifting body (wing) has a center of lift (CL) where if all areas of lift were concentrated in to one spot, it is the CL  The engineer designs the airplane to distribute the weight of the aircraft so that if all weight

Re: KR> CG tolerance

2020-08-09 Thread Phillip Matheson via KRnet
My Kr2 was balanced nose heavy. It needs a minimum of 70kg pilot to fly. Wing tanks on the CofG central line. Flys great. But as always with the short Kr2, PIO (pilot induced isolations) with over correction is common. If I did not have an experienced Kr pilot with me on my first flight, it woul

KR> CG tolerance

2020-08-09 Thread Flesner via KRnet
On 8/9/2020 2:53 PM, Dr. Feng Hsu wrote: So, it could be dangerous even if the tail section is around 2 pond heavier than CG required, correct?! Kindly, Dr. Hsu +++ I don't know if anyone has tested C.G. range down