single seat gyro

[benham]

Great project for someone with a little time everything is on it and still working, except the engine. It is was a good first timers machine, very stable and forgiving, just a pity the motor couldn"t keep up with the heat/work out here. Comes with a helmet and hand held vhf. Blades hub bar and rotor head still in good nick.Soft and hard start prerotator.The motor has had it but carbs, radiator and exhaust are still with it. Any offers considered Please don"t hesitate to call with any queries, 0419616036

[johnc]

Gday SamWhat modifications have you done since you got it?

[asra]

Hey Sam , looks like a great little machine, did you ever have any trouble with it in the air?

[Brian]

Cant be much trouble to fly cause I reckon that was Murrays gyro

[asra]

Yes Brian it was so stable even I could fly it. With full fuel it still worked out to be around an Inch LTL. Perfect.It had Goodwin blades and no pre rotator when I owned it.Attached photo is at Lamaroo nationals.

[quoj]

LTL?So, tell me... How *low* can a thrust line be before it, too, becomes a problem?Can the opposite of a PPO (i.e. nose-over thrusting moment due to sudden power loss) occur?Thanks.

[asra]

Hi quoj,The Houston study recommends two Inches either way with a further recommendation that slightly under(LTL) is better than slightly over (HTL).The lower the TL the more the nose will want to rise with the addition of power and also the opposite,the higher the TL the more it will be constantly trying to push the nose over.In very LTL with the application of power you will be pushing the stick forward

[quoj]

Thanks, Murray.The question was more out of curiosity, but yes, rest assured, that any gyro I buy/build will have the thrust line fair up the clack of the CoG/CoM.No muckin" around here!!(My wife & daughter would prefer that I *didn"t* become one of your "smokey hole in the ground" statistics!)

[asra]

You will notice on the Hunchback gyro the HS is airfoil shape,in the prop slipstream and a long way back,similar to the one in this photo,80 years ago..

[johnc]

I was told it was SOLD as I was interested to reacquire it for my son.

[Brian]

Thanks, Murray.The question was more out of curiosity, but yes, rest assured, that any gyro I buy/build will have the thrust line fair up the clack of the CoG/CoM.No muckin" around here!!(My wife & daughter would prefer that I *didn"t* become one of your "smokey hole in the ground" statistics!)From reports around, gyros that were HTL & lowered [thrust line] fly faster meaning better efficiency amongst other things. A good way to prevent becoming a statistic is to have good training, dont fly in conditions beyond what you feel comfortable in and work your way steady, dont rush.

[asra]

Yes Brian,why have a horizontal stabiliser with negative angle of attack eating up horsepower and efficiency?Even with the best training a students brain takes a long time to adjust to the phugoid oscillation"s of an unstable gyro,sometimes it can end badly.