YT Mach Racer
 

Powered by 50 Westonuk and genisus pipe.

http://www.youtube.com/watch?v=keKug7tNCQA

RE: YT Mach Racer
 

Wow!!, that thing is really hauling!

I've got a Mach Racer with a Magnum .46 on it that is much slower than the one in the vid (about 120mph with a 9x8 APC). At those speeds, the elevons are trying to rip apart where the control horn is attached. I can't imagine it lasting long with the West .50 on it.

RE: YT Mach Racer
 

Yer that started to happen with me, so I pulled the elevon off and added an extra hinge plus supports for horn. Digi servos too. swinging a 9x7. 10x6 was good too.

RE: YT Mach Racer
 

I'm running a TT 46 Pro/ ultra thrust in mine and it moves along smartly.I will have to dopler it some day.

RE: YT Mach Racer
 

Wow! I have only flown 1 (Flyboy Dave's) and even with a normal powerplant it sounded like a snare drum!

Impressive video- now put that engine in a Whip, Phenom, or DD. :D

RE: YT Mach Racer
 

Losing that landing gear realy can add some speed too.

RE: YT Mach Racer
 

How much lighter is the diamond dust,if any, than the mach racer???

RE: YT Mach Racer
 

Wingspan: ……………….... 34.5 in (876.3mm)

Length: .………………....... 29.0 in (736.60mm)

Wing Area: ……….…….... 575 sq in (37.09 sq dm)

Weight: …………………..... 2.25 – 3.0lbs (1020g–1360g)

Engine size: …………...... .25 - .40 2 cycle

Radio: ………………........ 4-channel w/3 servos

RE: YT Mach Racer
 

ahh cool thanks, I take it thats the clipped wing version?

RE: YT Mach Racer
 

Nope! That's even shorter yet.. :):

http://stores.homestead.com/Tetracam...iamond+Dust+RC

"The Diamond Dust CW KIT features lightweight balsa, composite tubes,
and light-ply construction.

This lightly loaded delta wing design makes it ideal for extremely
aggressive maneuvers as well as excellent low speed maneuverability.
The CW version has a more narrow wingspan combined with a more
aggressively swepped leading edge.


Wing Span 29 7/8.in
Wing Area 480 sq in
Wing Loading 12 oz / sq ft
Weight 2.5 -3.0 lbs
Engine Req. .25 - .50 2 cycle
Price $79.95 "

RE: YT Mach Racer
 

Ok, so for all out speed the clipped wing is the best? The visability might be harder no?
I need to try one of these.
The mach racer is pretty light. I don't know if the dd has a better laminar aerofoil for greater speed?

RE: YT Mach Racer
 

It advises bigger 50 size engine for clipped wing too i notice.
I wonder if bigger dd can take a 50 as it says to 40 and what noticiable difference there is between a normal dd and clipped dd with a 50?

RE: YT Mach Racer
 

Airfoil? DD? No, those two words don't belong in the same sentence. The name had to come from somewhere! At the speed and weight, during most flight the Cl is so low that a flat plate would likely make little difference. In the turns, well, hard to say who wins there, dunno much about the Mach racer. Have you seen a DD turn? At the low weight, even though you lose a good chunk of speed in the turns, the darn thing just rockets outta there again so no big deal.

Clipped wing, regular wing - if it makes a difference that matters, some would say you shouldn't fly either! :) You can put a .50 on either.. they'll take any .40-size engine (sometimes jokingly reffered to as a "small block" around here) and several are flying on Jett 60LX's, which are "small block" engines. The next size up (roughly) is a .60/.61 size crankcase or "big block". OS .46/OS .61 are two good reference points as all the clones that made these sizes standard spawned from there. There are exceptions in the non-clone war engine brands of course.

You'll find some flight descriptions around here if you search the DD.

MJD

RE: YT Mach Racer
 

pic of the beast