Raptor Composite Aircraft

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flywheel1935

Well-Known Member
Joined
Nov 1, 2018
Messages
218
Location
Downham Market, Norfolk, UK.
Peters Leading Quote of his own website; After finding the problem with the engine, which was actually with the redrive belts, the engine is now performing better than ever. Having the tune-up mostly done has made a substantial improvement on the thrust.

He just dosen't get it !!!!!!!!!!!
 

Hot Wings

Grumpy Cynic
HBA Supporter
Log Member
Joined
Nov 14, 2009
Messages
7,061
Location
Rocky Mountains
He just dosen't get it !!!!!!!!!!!
How he managed to not break the drill bit :)32) drilling the bolt at that speed means he must have some incredible luck, or a really soft touch on the drill press. I'd have just put on an additional washer or 2 with some blue Locktite and gone back to testing.

Thanks guys!? :mad:
Now you have me wasting time watching this disaster unfold. o_O
He needs a "No Stand Zone" around those belt tension rollers. :eek:
 

pictsidhe

Well-Known Member
Joined
Jul 15, 2014
Messages
7,504
Location
North Carolina
How he managed to not break the drill bit :)32) drilling the bolt at that speed means he must have some incredible luck, or a really soft touch on the drill press. I'd have just put on an additional washer or 2 with some blue Locktite and gone back to testing.

Thanks guys!? :mad:
Now you have me wasting time watching this disaster unfold. o_O
He needs a "No Stand Zone" around those belt tension rollers. :eek:
It's watching a train wreck in slow motion, you can't stop yourself.
 

Voidhawk9

Well-Known Member
HBA Supporter
Joined
Mar 26, 2012
Messages
322
Location
Timaru, NZ
High-speed runs, up to 90KIAS today, aircraft NOT prepared for flight (cowls not installed at least). o_O
 

Jay Kempf

Curmudgeon in Training (CIT)
Lifetime Supporter
Joined
Apr 13, 2009
Messages
3,941
Location
Warren, VT USA
90KIAS and it didn't lift off? Thought it was hard to keep a canard on the ground at those speeds. Those are small airliner lightly loaded speeds aren't they?
 

Toobuilder

Well-Known Member
Log Member
Joined
Jan 19, 2010
Messages
4,758
Location
Mojave, Ca
90KIAS and it didn't lift off? Thought it was hard to keep a canard on the ground at those speeds. Those are small airliner lightly loaded speeds aren't they?
My L-39 would get light on the gear at that speed.

If he's going that fast without the airplane and pilot fully prepared to fly then it's further evidence he has no concept of a Development and Test culture.
 

BBerson

Light Plane Philosopher
HBA Supporter
Joined
Dec 16, 2007
Messages
13,225
Location
Port Townsend WA
The acceleration to speed in 980 feet is excellent. Should be enough runway to test hop. I noticed a good overrun area also.
Don't know what the two glitch noises was.
Does he have an electric fan to keep it cool on all those runs?
 

flyrite

Well-Known Member
Joined
Mar 22, 2015
Messages
56
Location
lyons, ga. in the usa
If somebody don’t get down there and stop this deranged sicko, He’s gonna wreck the whole of the experimental movement!
My hair is turning grayer by the moment worrying bout all the innocents that this guy is harming! And my GOD when he kills himself how will I sleep again knowing all I have learned here and didn’t do something. Anybody here got any training in psychology, I sure hope so, We gone all need help when it surely happens?
Please...Please...PLEASE....SOMEBODY STOP THIS MADNESS!!!:eek::D
 

FarmBoy

Well-Known Member
Joined
Mar 14, 2012
Messages
129
Location
Gainesville, VA
Though he has improved his pump/injector tuning situation, it is still quite sub-optimal. This should really have all been done on a test stand with increased instrumentation and extra EGT sensors before being strapped back on an aero-body and spinning down the runway. His engine telemetry still reflects a combination of sub-optimal inter-cooler and turbo efficiencies resulting in unacceptably high EGTs - especially at the higher air speeds seen during his runs. Well tuned with appropriately sized turbos and ICs (and proper ducting), 350-400HP could be easily attained with and lean, clean, and cool AFRs/EGTs (at lower fuel flows than he is currently running - and wasting in his exhaust pipes).

Engine/PSRU issues aside, hopefully any sane test pilot will require a number of flight safety related issues to be corrected before first flight (e.g. aileron flutter, reinforced front strut mount, etc, etc.).
 
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