Brief:
I began buildin' upscale versions o' classic kits more out o' necessity than for a desire for bigger rockets. Aye aye! 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. Ahoy! (They weren't always exact replicas, me bucko, but close enough for me.) T' Estes Rogue and Satellite Interceptor both qualified as "close enough" with t' PNC-55BB nose cones, shiver me timbers, while a BT-56-based Condor became a favorite also. Well, blow me down! As it turned out, I enjoyed t' larger versions o' t' old rockets. Aye aye! Avast, me proud beauty! In a lot o' cases t' added size made for a more satisfyin' final product, matey, while t' larger engines made for much more satisfyin' flights. Begad! Well, me hearties, blow me down! That said, I had me doubts when I found that Mike Jerauld o' Blast From T' Past Rocketry had upscaled t' Mach 10. T' original Centuri kit was one o' t' rockets that had always intrigued me as a kid, ya bilge rat, 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. Begad! I got on Mike's list for t' kits as soon as I found out about it, shiver me timbers, but he temporarily stopped production soon after t' concentrate on remodelin' his house. Ya scallywag! I cloned a 1:1 version and after some initial problems, found it t' be one o' me favorite fliers, but I still couldn't help but be a skeptic when it came t' t' upscale. Avast! O' course, 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. Durin' t' initial construction I found that I had only one launch lug o' sufficient length instead o' t' two that were called for. Ya scallywag! 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, ya bilge rat, and I thought I could get by without t' decorator touch o' t' "machine guns". Blimey! Aye aye! It never occurred t' me that t' reason for t' called for placement o' t' lugs on both sides o' t' wings was more than just a cosmetic affectation. 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, matey, it turns out that their most important function is t' act as stabilizers for t' huge wings. Ahoy! Arrr! (As you'll see, I found this out t' hard way.)

T' second problem that I encountered be in gluin' in t' engine tube. Well, blow me down! Based on me experience, 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. Avast! Securin' t' engine hook is another potential "gotcha". Aye aye! I'd suggest a sturdy hold down strap t' withstand t' added punch that t' "D" engine will undoubtedly have at ejection. Well, blow me down! I used maskin' tape t' which I added a thick coatin' o' glue, but this turned out t' be more than slightly insufficient. Well, blow me down! Begad! A traditional Mylar or heavy paper rin' would probably work, but as yet I haven't found one in me parts stash. Another consideration involved in this project lies in pickin' an appropriate BNC-50 nose cone t' act as t' marker cone. Arrr! Arrr! 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. Begad! 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, ya bilge rat, restraint should be your operative word when it comes t' finishin' t' M10+. Blimey! Since added weight is one o' a glider's worst enemies, arrr, (behind only Port-O-Let's, matey, access roads, me bucko, and walls,) minimal effort should be expended in sealin' t' balsa and fillin' t' tube spirals. 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, ya bilge rat, arrr, but both were learnin' experiences and thrillers in their own way. T' first flight was on a windy Sunday in April, arrr, 2002 that has come t' be know as Black Sunday because o' t' widespread carnage that I experienced. (Flew six. Well, blow me down! Lost three. Begad! Crashed two, one t' death .) I had built t' M10+ t' previous winter, matey, arrr, but it went unflown for several months, me hearties, mostly due t' me lack o' confidence in t' rocket. Ya scallywag! Ahoy! I had only brought it along on Black Sunday after findin' a stray D12-3 motor rollin' around in me range box. Begad! 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 be shielded from t' bulk o' t' wind by a large hillside. This gave us t' whole rest o' t' field for recovery, ya bilge rat, (not that we recovered anything.) I loaded t' rocket on t' pad, figurin' that at worst I'd get t' typical Mach 10 flight, shiver me timbers, a large loop off t' pad that managed t' miss t' ground, with somethin' approachin' a glide if I was lucky. Avast, me proud beauty! Begad! T' show we got be beyond all o' our wildest expectations.

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

T' second flight was on another local field in July at a launch that I put on for t' kids o' some friends. Blimey! I brought t' newly repaired M10+ along because it had been me experience that, while kids love rockets, ya bilge rat, they REALLY love gliders. Well, blow me down! Avast! It didn't disappoint. Aye aye! Loaded with a C11-3 for this flight, matey, arrr, matey, it didn't as much roar off t' pad as it did slowly glide off. Arrr! Very impressive. Begad! It would have made for a great launch picture, me bucko, but I was still several month's short o' t' digital camera that I received as a 40th birthday present and me old camera be notoriously slow, so I did without. Ya scallywag! I shouldn't have. T' M10+ didn't attain any great heights, maybe 70' at best, but it be an extremely smooth flight with a straighter than expected boost. It initially looped out over t' soccer field, but began bankin' durin' t' coast phase, lookin' enormous as it strafed our launch position. 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, ya bilge rat, shiver me timbers, but since it was still glidin' I didn't think much about it. Avast! 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, me bucko, arrr, I still wasn't worried. 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, me hearties, courtesy o' me six year old recovery army. Arrr! (Even t' adults were impressed.) "Do it again! Do it again!" t' kids all yelled excitedly. I was plannin' t' do just that and went t' remove t' expended engine casin' when I noticed that it wasn't there. Ya scallywag! Begad! In fact, matey, me hearties, nothin' be 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, ya bilge rat, and much o' t' propulsion system had simply propelled out into t' middle o' t' soccer field. Begad! We combed t' field and turned up t' engine casing, but no engine hook.

After waitin' almost a year t' do t' necessary repairs, I finally go re-interested in this project recently. Begad! For t' new and improved M10+ I decided t' use epoxy t' mount t' engine tube and secure t' engine hook. Avast, me proud beauty! It seems t' have worked from a strength standpoint, me bucko, but it also seems t' have changed t' balance o' t' rocket. Ya scallywag! T' recovery phase no longer looks as much like a glide as it does a flutter. Avast! I made three flights with it, 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. Avast, me proud beauty! Begad! On t' third flight o' t' day on t' C11-3, matey, arrr, ya bilge rat, t' glide took it on such a steep angle that it appeared t' nose into t' ground. Arrr! 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. Well, blow me down! Ahoy! It's a perfect project for a weekend build and fly as you can easily build it on Friday, arrr, trim and paint it on Saturday, me hearties, ya bilge rat, then fly it on Sunday. Begad! Ahoy! (And trim it some more on Sunday too!) While it isn't a glider that will be a good choice for competition, 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, ya bilge rat, matey, me hearties, but as with it's smaller sibling, once it's flying, arrr, it's well worth t' trouble.