Konrad
Very Strong User
Elsewhere I was reminded that I had a stalled 40 year old Mach One pattern ship build in the attic.
Having pulled it down I see that what I really have is a time machine going back 40 years. Here we see what I a 20 something was thinking about.
Well, it is a slimer set up to be using a 10cc piped engine. This is hit one against it for today's flying conditions. I see I had concerns with holding the engine on to the maple beams. I encapsulated the engine to try to add additional support. I see looking at the gear length that the plane was set up for smaller 11 an 10 inch diameter props. I also see that the gear was to be MK mechanicals driven from one retract servo (no electrical retracts back then). I see I had concerns about wing tip mass and cut lightening holes in the outer part of the wing panels. I see I was already not liking Monokoat for longevity concerns with getting oil soaked So I finished this model in heavy silkspan and 12 coats of nitrate dope. (I see no dope blister).
I see I had concerns about pitch stability as I added the anhedral stab. (This was a trend after Hanno had such success with his Curare). This added all sorts of issue with symmetrical action of the elevators. I see I was cutting into the rear of the fuselage to add a rear support of the elevator push rod. (This was known as the trident push rod). The real issue in knife edge flight was that we used to nose heavy a set up to deal with the changing CG as we burned through 16 oz of fuel, feeding that hungry piped monster! With electrical power we don't have to deal with this changing CG through out the flight. (There are many reasons glow is dead, and this CG shift is one)!
And what I think caused me to hang up on this build was that in this time frame the FAI and AMA had added noise constraints with the introduction of the turnaround pattern. The Mach One like its name implies is a ballistic pattern ship. Really not suited to flying inside the box.
Having pulled it down I see that what I really have is a time machine going back 40 years. Here we see what I a 20 something was thinking about.
Well, it is a slimer set up to be using a 10cc piped engine. This is hit one against it for today's flying conditions. I see I had concerns with holding the engine on to the maple beams. I encapsulated the engine to try to add additional support. I see looking at the gear length that the plane was set up for smaller 11 an 10 inch diameter props. I also see that the gear was to be MK mechanicals driven from one retract servo (no electrical retracts back then). I see I had concerns about wing tip mass and cut lightening holes in the outer part of the wing panels. I see I was already not liking Monokoat for longevity concerns with getting oil soaked So I finished this model in heavy silkspan and 12 coats of nitrate dope. (I see no dope blister).
I see I had concerns about pitch stability as I added the anhedral stab. (This was a trend after Hanno had such success with his Curare). This added all sorts of issue with symmetrical action of the elevators. I see I was cutting into the rear of the fuselage to add a rear support of the elevator push rod. (This was known as the trident push rod). The real issue in knife edge flight was that we used to nose heavy a set up to deal with the changing CG as we burned through 16 oz of fuel, feeding that hungry piped monster! With electrical power we don't have to deal with this changing CG through out the flight. (There are many reasons glow is dead, and this CG shift is one)!
And what I think caused me to hang up on this build was that in this time frame the FAI and AMA had added noise constraints with the introduction of the turnaround pattern. The Mach One like its name implies is a ballistic pattern ship. Really not suited to flying inside the box.
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