New Megatech Mach Racer delta wing
02-17-2006, 01:54 PM
#1
Senior Member
Thread Starter
My Feedback: (17)
Join Date: Apr 2004
Location: Post Falls Idaho
Posts: 880
Likes: 0
Received 0 Likes
on
0 Posts
New Megatech Mach Racer delta wing
Any good?? I bought one, figured for 89 buks it was worth it.
Planning on running a OS 46AX with a tuned Pipe, what prop should I run?? LHS told a 9x6 APC. would a 9x8 be better ??
and what kind of speeds should I be looking at with this setup ??
Thanks for all your input [8D]
Planning on running a OS 46AX with a tuned Pipe, what prop should I run?? LHS told a 9x6 APC. would a 9x8 be better ??
and what kind of speeds should I be looking at with this setup ??
Thanks for all your input [8D]
02-17-2006, 10:24 PM
#2
Junior Member
Join Date: Sep 2005
Location: red oak,
IA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
RE: New Megatech Mach Racer delta wing
Ive just got me one to,Instead of putting the twin vertical stabs on it i made 1 single vert stab with a rudder on it Im using a os 50 with 9x8 apc prop and stock muffler ..cant wait till i get my tuned pipe from tower hobbies next week oyeah i also tossed the landing gear back in the box there a drag want to see a picture look in the photo gallery under delta wings
03-04-2006, 08:38 PM
#6
RE: New Megatech Mach Racer delta wing
ORIGINAL: Flyboy Dave
....Kmot....it saves time that way....[sm=thumbup.gif]
My wife said either her, or the airplanes has to go !!!
Look at my hobby room. Man, I hate doing laundry. [sm=bananahead.gif]
FBD.
....Kmot....it saves time that way....[sm=thumbup.gif]My wife said either her, or the airplanes has to go !!!
Look at my hobby room. Man, I hate doing laundry. [sm=bananahead.gif]
FBD.
And your reply was "don't let the door hit you on your way out" ???
my wife left a few years ago.... and this is how my livingroom looks now!
03-05-2006, 12:40 PM
#12
Senior Member
My Feedback: (31)
Join Date: Dec 2003
Location: Fullerton, CA
Posts: 434
Likes: 0
Received 0 Likes
on
0 Posts
RE: New Megatech Mach Racer delta wing
I noticed that the flying weight of the Mach Racer is 3.56 lbs. Take the gear off and you would lose a bit of that. At that point, it's weight should compare favorably to the Diamond Dust. (My clipped wing Dust weighs 3.68 lbs). Plus it appears to be as sleek as the DD.
With the landing gear removed, what will the speed of the Mach Racer be versus the Diamond Dust (given the same engine in each, for instance the OS .46 AX mentioned earlier)....
In other words, what would you guess would be the MPH of each plane with the OS .46 AX?
With the landing gear removed, what will the speed of the Mach Racer be versus the Diamond Dust (given the same engine in each, for instance the OS .46 AX mentioned earlier)....
In other words, what would you guess would be the MPH of each plane with the OS .46 AX?
03-05-2006, 01:49 PM
#13
RE: New Megatech Mach Racer delta wing
ORIGINAL: Kmot
That's a vintage Semco venturi muffler, I beleive.
That's a vintage Semco venturi muffler, I beleive.
At least, it seems to reduce muffler overall drag. How does it work btw ?
03-05-2006, 10:32 PM
#14
RE: New Megatech Mach Racer delta wing
Well, for 'muffling sound', not very well.
It has a dual lining. The inner shape is a venturi, which when the aircraft is moving creates a low pressure, The outer lining, or body, is where the exhaust gases go. In theory anyway, the low pressure of the inner venturi would create a scavenging effect on the exaust gases, giving a boost in flow.
It has a dual lining. The inner shape is a venturi, which when the aircraft is moving creates a low pressure, The outer lining, or body, is where the exhaust gases go. In theory anyway, the low pressure of the inner venturi would create a scavenging effect on the exaust gases, giving a boost in flow.
03-06-2006, 07:54 AM
#15
RE: New Megatech Mach Racer delta wing
Kmot has the right idea....the inner tube runs straight through, the exhaust
goes into the outer portion and out the back. They are louder than a stock
muffler, and do give better power, no doubt about that. The are cool looking.
I have about 5 of them, The one on this 45 FSR is cast. The others seem to
be spun and welded, the massaged and polished. I've heard then called Demco.
Tatone. and Macs....I got them all second hand....I don't really know where
they come from. This one is on a 60 Rossi, and a couple on OS 60 FSR's.
FBD.
goes into the outer portion and out the back. They are louder than a stock
muffler, and do give better power, no doubt about that. The are cool looking.
I have about 5 of them, The one on this 45 FSR is cast. The others seem to
be spun and welded, the massaged and polished. I've heard then called Demco.
Tatone. and Macs....I got them all second hand....I don't really know where
they come from. This one is on a 60 Rossi, and a couple on OS 60 FSR's.
FBD.
03-06-2006, 12:52 PM
#19
Senior Member
My Feedback: (31)
Join Date: Dec 2003
Location: Fullerton, CA
Posts: 434
Likes: 0
Received 0 Likes
on
0 Posts
RE: New Megatech Mach Racer delta wing
With the landing gear removed, what will the speed of the Mach Racer be versus the Diamond Dust (given the same engine in each, for instance the OS .46 AX mentioned earlier)....
What about the speeds of both with the Jett .50?
What about the speeds of both with the Jett .50?
03-06-2006, 01:34 PM
#20
Senior Member
My Feedback: (5)
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Likes: 0
Received 0 Likes
on
0 Posts
RE: New Megatech Mach Racer delta wing
ORIGINAL: cobratraxxas69
With the landing gear removed, what will the speed of the Mach Racer be versus the Diamond Dust (given the same engine in each, for instance the OS .46 AX mentioned earlier)....
What about the speeds of both with the Jett .50?
With the landing gear removed, what will the speed of the Mach Racer be versus the Diamond Dust (given the same engine in each, for instance the OS .46 AX mentioned earlier)....
What about the speeds of both with the Jett .50?
03-06-2006, 11:59 PM
#22
Senior Member
My Feedback: (31)
Join Date: Dec 2003
Location: Fullerton, CA
Posts: 434
Likes: 0
Received 0 Likes
on
0 Posts
RE: New Megatech Mach Racer delta wing
Your clipped wing Dust weighed over 3.5 lbs? My regular Dust with a Jett 50 only weighed 2 lbs 12 ozs. (no fuel).
03-07-2006, 08:53 PM
#25
RE: New Megatech Mach Racer delta wing
Strykaas....it's a ringed engine, so it's not tight. However, it is crisp
and has excellant compression....no bearing noise. I put a new plug
in it, and primed the carb....it fired right up.
Razor....where ya' been ? I still have the bag of APC's for you.
FBD.
and has excellant compression....no bearing noise. I put a new plug
in it, and primed the carb....it fired right up.
Razor....where ya' been ? I still have the bag of APC's for you.
FBD.
