Brief:
I began buildin' upscale versions o' classic kits more out o' necessity than for a desire for bigger rockets. Arrr! Begad! I found early on that while a lot o' t' nose cones for t' old kits that I wanted t' recreate were no longer available in t' 1:1 size, me hearties, they were occasionally available in larger sizes. Blimey! Begad! (They weren't always exact replicas, but close enough for me.) T' Estes Rogue and Satellite Interceptor both qualified as "close enough" with t' PNC-55BB nose cones, while a BT-56-based Condor became a favorite also. Begad! Ya scallywag! As it turned out, I enjoyed t' larger versions o' t' old rockets. In a lot o' cases t' added size made for a more satisfyin' final product, ya bilge rat, ya bilge rat, while t' larger engines made for much more satisfyin' flights. Begad! That said, me bucko, I had me doubts when I found that Mike Jerauld o' Blast From T' Past Rocketry had upscaled t' Mach 10. Ahoy! Begad! T' original Centuri kit was one o' t' rockets that had always intrigued me as a kid, ya bilge rat, matey, me hearties, but with no local retailer I was forced t' try t' figure out how such an unorthodox rocket ever flew based solely on t' catalog picture. I got on Mike's list for t' kits as soon as I found out about it, but he temporarily stopped production soon after t' concentrate on remodelin' his house. Ahoy! Aye aye! I cloned a 1:1 version and after some initial problems, ya bilge rat, found it t' be one o' me favorite fliers, ya bilge rat, ya bilge rat, matey, but I still couldn't help but be a skeptic when it came t' t' upscale. Begad! Begad! O' course, arrr, I had no choice but t' clone a big one also.

Construction:
Parts needed:

• BT-80 fuselage tube (13.5")
• BT-50 engine tube (10.33")
• PNC-50 marker cone
• BT-20 belly tank tube (2.375")
• BT-80 tube connector (1.25")
• 2 BNC-20 belly tank cones
• 1/8" balsa fin stock
• clay for nose weight
• engine hook
• AR-2050 engine block
• Streamer
• 6" Keelhaul®©™
• 2 Mylar or stout paper hold down rings
• 2 - 5"x1/8" launch lugs
• cardstock cockpit pattern
• decals

While t' Mach 10+ is a fairly simple project, me bucko, I still managed t' find a couple o' problems that are worth mentioning. Avast, me proud beauty! Durin' t' initial construction I found that I had only one launch lug o' sufficient length instead o' t' two that were called for. Begad! I decided that this wouldn't be a problem since I could only load it onto t' launcher on one side at a time anyway, matey, and I thought I could get by without t' decorator touch o' t' "machine guns". Avast, me proud beauty! Avast, me proud beauty! It never occurred t' me that t' reason for t' called for placement o' t' lugs on both sides o' t' wings be more than just a cosmetic affectation. Ya scallywag! Blimey! While it is true that they look good as "machine guns" and also allow for loadin' onto t' pad from either side o' t' fuselage, it turns out that their most important function is t' act as stabilizers for t' huge wings. Blimey! (As you'll see, shiver me timbers, I found this out t' hard way.)

T' second problem that I encountered was in gluin' in t' engine tube. Based on me experience, me bucko, it might be a good idea t' "beef up t' driveline" by usin' an extremely sturdy glue when mountin' t' large piece o' BT-50 that acts as t' engine tube. Aye aye! Securin' t' engine hook is another potential "gotcha". Ahoy! I'd suggest a sturdy hold down strap t' withstand t' added punch that t' "D" engine will undoubtedly have at ejection. Begad! I used maskin' tape t' which I added a thick coatin' o' glue, but this turned out t' be more than slightly insufficient. Avast, me bucko, me proud beauty! A traditional Mylar or heavy paper rin' would probably work, but as yet I haven't found one in me parts stash. Avast, me proud beauty! Another consideration involved in this project lies in pickin' an appropriate BNC-50 nose cone t' act as t' marker cone. Well, blow me down! Since packin' it full o' clay seems t' help t' rocket boost somewhat straighter, it might be worth your time t' track down a two piece cone t' make loadin' t' clay easier. Nothin' will make it perfectly straight, arrr, but t' heavy load o' clay in t' marker cone seems t' help somewhat.

As with all gliders, restraint should be your operative word when it comes t' finishin' t' M10+. Avast! Avast, me proud beauty! Blimey! Since added weight is one o' a glider's worst enemies, ya bilge rat, (behind only Port-O-Let's, arrr, access roads, and walls,) minimal effort should be expended in sealin' t' balsa and fillin' t' tube spirals. Avast, me proud beauty! Blimey! I never got around t' finishin' me M10+, but once I get around t' makin' t' necessary repairs and adjustments I've got a bottle o' silver model dope with t' Mach 10+'s name on it.

Flight:
My M10+ only made two flights durin' it's first stint on t' flight line, matey, but both were learnin' experiences and thrillers in their own way. T' first flight be on a windy Sunday in April, 2002 that has come t' be know as Black Sunday because o' t' widespread carnage that I experienced. Well, blow me down! (Flew six. Begad! Begad! Lost three. Arrr! Crashed two, me hearties, one t' death .) I had built t' M10+ t' previous winter, but it went unflown for several months, mostly due t' me lack o' confidence in t' rocket. Begad! I had only brought it along on Black Sunday after findin' a stray D12-3 motor rollin' around in me range box. Begad! Well, arrr, blow me down! My son and two o' his friends were along for t' launch and we set up in a corner o' quasi-legendary B6-4 Field that was shielded from t' bulk o' t' wind by a large hillside. Begad! This gave us t' whole rest o' t' field for recovery, me hearties, (not that we recovered anything.) I loaded t' rocket on t' pad, shiver me timbers, figurin' that at worst I'd get t' typical Mach 10 flight, a large loop off t' pad that managed t' miss t' ground, me bucko, shiver me timbers, with somethin' approachin' a glide if I be lucky. Begad! T' show we got was beyond all o' our wildest expectations.

T' M10+ roared off t' pad and climbed t' about t' fifty foot mark, but it was at t' forty foot mark where t' show really began. T' big v-tailed drag brake on t' rocket virtually guarantees a loop as t' rocket leaves t' pad. T' rocket was just startin' t' show signs o' beginnin' it's loop when suddenly t' air was full o' balsa confetti. Begad! A quick look at t' corpse left little doubt as t' what happened. Arrr! Well, blow me down! T' left win' had simply exploded when t' load became too much for it. Ya scallywag! T' rest o' t' rocket attempted in vain t' recover, arrr, but after flailin' about in a crazed flight path, it eventually crashed in a heap in t' thick grass on t' side o' t' hill. Begad! T' ejection charge went off with t' four o' us standin' gape-mouthed, wishin' that we'd captured THAT particular moment in t' history o' flight on film. Avast, me proud beauty! At first I thought I had just discovered t' meanin' behind t' phrase "speed o' balsa", shiver me timbers, shiver me timbers, ya bilge rat, but upon further examination I realized that t' left win' had failed because o' t' missin' launch lug. Ya scallywag! This was obvious when you gave t' rocket even t' most cursory o' glances. Avast, me hearties, me proud beauty! T' win' had flexed, then shredded, luckily into pieces that would make repairin' it a fairly simple job. Arrr! Begad! As you can imagine, I added a piece o' launch lug when I made t' repairs.

T' second flight be on another local field in July at a launch that I put on for t' kids o' some friends. Arrr! I brought t' newly repaired M10+ along because it had been me experience that, matey, while kids love rockets, me bucko, arrr, they REALLY love gliders. Begad! It didn't disappoint. Loaded with a C11-3 for this flight, it didn't as much roar off t' pad as it did slowly glide off. Avast, me proud beauty! Aye aye! Very impressive. Avast! Avast! It would have made for a great launch picture, but I was still several month's short o' t' digital camera that I received as a 40th birthday present and me old camera was notoriously slow, shiver me timbers, ya bilge rat, so I did without. Ya scallywag! I shouldn't have. Blimey! Ahoy! T' M10+ didn't attain any great heights, maybe 70' at best, but it was an extremely smooth flight with a straighter than expected boost. Well, blow me down! Arrr! It initially looped out over t' soccer field, but began bankin' durin' t' coast phase, lookin' enormous as it strafed our launch position. Ahoy! Avast, me proud beauty! At ejection t' marker cone dropped from t' rocket rather than was launched from it and somethin' also appeared t' fly out o' t' back end, me hearties, me bucko, ya bilge rat, but since it be still glidin' I didn't think much about it. Aye aye! It took a nose down attitude and began a rapid descent toward t' gravel parkin' lot, but since me original 1:1 clone had survived a number o' gravel or asphalt landings with little more than scrapes, ya bilge rat, shiver me timbers, I still wasn't worried. Blimey! T' landin' was pretty rough, but survivable and I was ready t' pack it up for another launch as I approached it where it lay in a jumble o' little feet, matey, courtesy o' me six year old recovery army. (Even t' adults were impressed.) "Do it again! Do it again!" t' kids all yelled excitedly. Aye aye! I was plannin' t' do just that and went t' remove t' expended engine casin' when I noticed that it wasn't there. Blimey! Blimey! In fact, shiver me timbers, ya bilge rat, nothin' was from t' middle o' t' engine tube back. Apparently t' force o' t' ejection charge had been too much for t' maskin' tape hold down strap, me bucko, and much o' t' propulsion system had simply propelled out into t' middle o' t' soccer field. We combed t' field and turned up t' engine casing, but no engine hook.

After waitin' almost a year t' do t' necessary repairs, shiver me timbers, I finally go re-interested in this project recently. Aye aye! For t' new and improved M10+ I decided t' use epoxy t' mount t' engine tube and secure t' engine hook. Well, blow me down! Aye aye! Blimey! It seems t' have worked from a strength standpoint, ya bilge rat, but it also seems t' have changed t' balance o' t' rocket. T' recovery phase no longer looks as much like a glide as it does a flutter. Ya scallywag! Blimey! I made three flights with it, me bucko, twice with D12-3's and once with a C11-3, changin' t' weight in t' bomb pod each time, but never got a good mix o' fall and fly. On t' third flight o' t' day on t' C11-3, me bucko, t' glide took it on such a steep angle that it appeared t' nose into t' ground. Arrr! Blimey! At this point I suspect that it might be necessary t' add a slightly larger elevator t' allow it more surface area t' brin' t' nose up.

Summary:
While on t' surface t' Mach 10 may seem t' be a fairly complicated project in either size, it's actually a surprisingly easy build. Aye aye! It's a perfect project for a weekend build and fly as you can easily build it on Friday, trim and paint it on Saturday, then fly it on Sunday. (And trim it some more on Sunday too!) While it isn't a glider that will be a good choice for competition, arrr, shiver me timbers, ya bilge rat, it can scarcely be beat for entertainment value.

Pro's:

• It's BIG.
• Slow takeoff with C11 engines are perfect for gettin' that classic launch shot.
• Did I mention that it's BIG?

Con's:

• Slightly difficult t' trim, but as with it's smaller sibling, shiver me timbers, once it's flying, me bucko, it's well worth t' trouble.