High speed
11-18-2006, 10:34 AM
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High speed
The fastest prop driven plane I know of is a Giant Scale NA50 race plane...Built by Fred French from a composite kit...Weighs about 32 lbs..Power is a much modified Quadra Aerrow 200cc twin turning a 25 or 26 pitch prop at about 10,000 rpm...Radar verified straight line speed is 245 mph...Anyone know of a faster prop driven plane ?
11-18-2006, 09:15 PM
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RE: High speed
I'm with Rudeboy, the saying goes "speed cost money, how fast do you want to go?"
Well, I want to go fast on a "reasonable" budget. Heck, I'll even go to 1.20 size or more.
I want to get to at least Q40 speeds (preferrably faster) with off the shelf stuff with at most a little modification.
Since most of us are not flying in competition events, we don't have to follow those stringent rules.
So what's a good way to get to 200mph for under $1K Lets just stick to IC engines w/ props for this thread.
Well, I want to go fast on a "reasonable" budget. Heck, I'll even go to 1.20 size or more.
I want to get to at least Q40 speeds (preferrably faster
) with off the shelf stuff with at most a little modification.Since most of us are not flying in competition events, we don't have to follow those stringent rules.
So what's a good way to get to 200mph for under $1K Lets just stick to IC engines w/ props for this thread.
11-19-2006, 01:40 AM
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RE: High speed
To do that your best bet is a Hot and high end engine and an inexpensive airframe like a diamond dust or something of the like. But 200 is gonna be a hard one to tap on a low low budget. If you like to design your own stuff it's a little different story, Thats what I like to do. The most important thing is a super clean airframe with high attention to detail, thats what cranks out the MPHs, I don't care how good your engine is.
11-19-2006, 10:32 AM
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RE: High speed
If you like to design your own stuff it's a little different story
. Find five fast planes you really like, do some research on why they are fast (aerodynamics, airfoils, etc), make a plane based on all five of them. Kit it, sell some, and use the money to fund your next project. It's the circle of life.
Mods
11-19-2006, 12:58 PM
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RE: High speed
Hallo speedfreaks,
here is my BVM´91 driven speedplane. It is clocked at the German speed cup with a optical system after 200m straight flight with 229 mph.
Best regards Michael
here is my BVM´91 driven speedplane. It is clocked at the German speed cup with a optical system after 200m straight flight with 229 mph.
Best regards Michael
11-19-2006, 07:04 PM
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RE: High speed
The bottom one is a Beretta 21. It was originally built by "Jet & Speed Models" from Holland, but I don't know if they still kit it... I have my doubts...
You could try [link=http://www.modellmotorentechnik.de/]Modellmotorentechnik[/link] to see if they still have some.
The top one with the BVM engine is pretty much purpose built... you are not going to see a kit of that thing.
You could try [link=http://www.modellmotorentechnik.de/]Modellmotorentechnik[/link] to see if they still have some.
The top one with the BVM engine is pretty much purpose built... you are not going to see a kit of that thing.
11-20-2006, 01:54 PM
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RE: High speed
ORIGINAL: f3d
Hallo speedfreaks,
here is my Nelson 40 FI FAI engine driven speed 40 airplane. More than 250 mph.
Best regards Michaekl
Hallo speedfreaks,
here is my Nelson 40 FI FAI engine driven speed 40 airplane. More than 250 mph.
Best regards Michaekl
11-27-2006, 08:57 AM
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RE: High speed
@ troy-RCU
The Speed of BVM91 driven one was exactly 357 km/h (221,8 mp/h) - average value of both direction with and againsted wind. That makes a huge difference compared to a measurement from only a single direction! I was part of the 'timing crew' and also built up the sensor boxes, so it's first hand information
The Beretta has not been measured in the Speedcup contest. Because Michael did not start with it. He used his Dago Innovation F3D racer. As far as i am informed the Beretta crashed on first flight a few weeks before the Speedcup.
Maybe he will start next year with this or a similar Beretta, to show that the 250 isn't a dream only....
best regards
Mario Roos
The Speed of BVM91 driven one was exactly 357 km/h (221,8 mp/h) - average value of both direction with and againsted wind. That makes a huge difference compared to a measurement from only a single direction! I was part of the 'timing crew' and also built up the sensor boxes, so it's first hand information
The Beretta has not been measured in the Speedcup contest. Because Michael did not start with it. He used his Dago Innovation F3D racer. As far as i am informed the Beretta crashed on first flight a few weeks before the Speedcup.
Maybe he will start next year with this or a similar Beretta, to show that the 250 isn't a dream only....
best regards
Mario Roos
